Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine &...

25
Bob Davis Senior Staff Lighting Scientist / Engineer Searching for Holy Grails: A Glaring Lack of Definition Are glare metrics dead yet?

Transcript of Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine &...

Page 1: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

Bob DavisSenior Staff Lighting Scientist Engineer

Searching for Holy Grails

A Glaring Lack of Definition

Are glare metrics dead yet

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

LsLb

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

DISCOMFORT GLARE METRICSbull Initially developed to deal with fluorescent sourcesbull Empirically derived characterizations of the stimulus to predict

discomfort results from rating scales (de Boer Hopkinson)bull No underlying theoretical or biological model

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 2: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

LsLb

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

DISCOMFORT GLARE METRICSbull Initially developed to deal with fluorescent sourcesbull Empirically derived characterizations of the stimulus to predict

discomfort results from rating scales (de Boer Hopkinson)bull No underlying theoretical or biological model

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 3: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

LsLb

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

DISCOMFORT GLARE METRICSbull Initially developed to deal with fluorescent sourcesbull Empirically derived characterizations of the stimulus to predict

discomfort results from rating scales (de Boer Hopkinson)bull No underlying theoretical or biological model

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 4: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

GLARE the sensation produced by luminance within the visual field that is sufficiently greater than the luminance to which the eyes are adapted to cause annoyance discomfort or loss in visual performance and visibility

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

LsLb

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

DISCOMFORT GLARE METRICSbull Initially developed to deal with fluorescent sourcesbull Empirically derived characterizations of the stimulus to predict

discomfort results from rating scales (de Boer Hopkinson)bull No underlying theoretical or biological model

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 5: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

DISCOMFORT GLARE METRICSbull Initially developed to deal with fluorescent sourcesbull Empirically derived characterizations of the stimulus to predict

discomfort results from rating scales (de Boer Hopkinson)bull No underlying theoretical or biological model

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 6: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

Discomfort Glare MetricsMetricIndex Year Source Notes

British Glare Index (BGI) 1950 IES ndash London (1967) Small sources no daylight

Visual Comfort Probability (VCP) 1963 IES - New York Uniform medium-size no daylight

CIE Glare Index (CGI) 1979 CIE Combine amp correct BGI amp VCP

Daylight Glare Index (DGI) 1982 Research Modified BGI for daylight

Glare Rating (GR) 1994 CIE 112-1994 Exterior

Unified Glare Rating (UGR) 1995 CIE 117-1995 Refinement of CGI

UGR for small sources (UGRsmall) 2002 CIE 147-2002

Daylight Glare Probability (DGP) 2006 Research

BUG Rating 2011 IES Exterior

UGR -- DGP -- BUG

7

119880119880119880119880119880119880 = 8 log 025119871119871119887119887

sum 11987111987121205961205961199011199012

5 lt UGR lt 30

UGR Hopkinsonrsquos Rating Scale

lt10 Imperceptible

lt13 Just Perceptible

lt16 Perceptible

lt19 Acceptable

gt22 Unacceptable

gt25 Just Uncomfortable

gt28 Uncomfortable

Unified Glare Rating (UGR)

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Bare LEDs can be over 1 million cdm2

(compare to T5HO fluorescent lamps at 25-30000 cdm2)

8Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

9Landscape Forms

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

10Landscape Forms

Source picture IES DG-18-08

Metrics for Discomfort Glare - Issues w Stimulus

Ls - uses average luminance and assumes uniform luminance over luminous area (luminaire aperture)

Lb ndash can be difficult to define ndash local global adaptation

p ndash assumes horizontal line of sight and a cutoff at about 55 from horizontal

Does not account for differences in SPD11Landscape Forms

Metrics for Discomfort Glare - Issues w Response

Three order sequences ascending descending and randomised Substantial bias due to order effects

ldquoThis demonstrates the need for caution when interpreting subjective evaluations of discomfort due to glare and estimating the robustness of glare indices derived from studies that used Hopkinsonrsquos scale and procedurerdquo

12

LandKent M Fotios and Altomonte S (2018) Building and Environment 136 pp 56-61scape Forms

CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)

13Photos courtesy of Acuity Brands Lighting

119880119880119880119880119880119880prime = UGR + 8 log

14

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

15

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

16

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

17

Approx 57 dia

Approx 18 dia

Approx 057 dia

(4) Approx 029 dia

(4) Approx 029 dia

Approx 57 dia

Description Diffuse full area

110th area

central

1100th area

central

1100th area

clustered

1100th area

separated

Diffuse full area 10X

outputLuminous flux lm 3173

Luminous intensity cd 649Average luminance of the luminaire Ls cdm^2 60000Conventional UGR value (source area is full exit

window)137 137 137 137 137 297

Luminance of the luminous parts gt500 cdm^2 Leff cdm^2

6000 59914 598273 598273 598273 60000

Alternative UGR value UGR (source area is area above 500 cdm2 threshold)

137 216 296 296 296 297

317649

6000

IES D-GONE Committee ndashStreet Area Sports Lighting

25 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

25deg

R=298 m m

H=0126 m

20 deg fixation

20deg

R=25 m

H=092 m

40 deg fixation

ampCalibriamp10ampK000000Signify Classified - Internalamp1

Conditions 40 deg (2)

Conditions 40 deg

Data per subject 25 deg

Position 25 deg (Day 1)

12345656382108179

Condition number

Number of votes

Data per subject 25 deg wo 4

Position 25 deg (Day 1)

1235424172133

Condition number

Number of votes

Data per subject 15 deg

Position 15 deg (Day 2)

12345697110371176

Condition number

Number of votes

Data OVERALL

image1png

image2png

image3jpeg

image4emf

image5png

image6jpeg

18

Outdoor The ldquoGrdquo in BUG Rating (IES TM-15-11)

Maximum zonal lumens

19

bull Use BUG rating ldquoGrdquo value for nowbull Modified UGR may be the answer in the futurebull Considering limits to MP ratios

IES LOPS ndash Lighting for Outdoor Pedestrian Spaces (LP-2 RP-33hellip)

20

Glare metrics are not dead

YET

but do we need a new start

21

Glare metrics A new beginning

Receptive fieldsRetina is designed to compress data from visual fieldGanglion cell layers collect data from many photoreceptors to detect visual changes such as edges luminance contrastsReceptive fields affect ldquohardnessrdquo of edges contrast perception

Scheir et al 2016 A psychophysical model for visual discomfort based on receptive fields LRampT 2016 01-13

125000000

1500000

10000000

STIMULUS RESPONSE

bull Discomfortbull Disability

Image IES 10th Edition Lighting Handbook

119871119871119904119904 120596120596119904119904119871119871119887119887 119901119901

MODEL

Simplified geometrySimplified measurements

HDRIVR

Rating scales

Eye trackingMotor responses

fMRI

Empirical basis

Visual science basis

Searching for Holy Grails

A Glaring Lack of Definition

UPDATESCIE JTC7

IES D-GONEIES LOPSFuture

24

Indoor Discomfort Glare ndashHow itrsquos used in Europe

25

UGR = 23

UGR on a luminaire cut sheet

  • Searching for Holy Grails A Glaring Lack of DefinitionAre glare metrics dead yet
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 3
  • Slide Number 4
  • Slide Number 5
  • Discomfort Glare Metrics
  • Unified Glare Rating (UGR)
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Stimulus
  • Metrics for Discomfort Glare - Issues w Response
  • CIE JTC7 Luminaires with non-uniform luminances(CIE 232-2019)
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • IES D-GONE Committee ndash Street Area Sports Lighting
  • Outdoor The ldquoGrdquo in BUG Rating13(IES TM-15-11)
  • IES LOPS ndashLightingfor Outdoor Pedestrian Spaces (LP-2 RP-33hellip)
  • Slide Number 20
  • Glare metrics A new beginning
  • Slide Number 22
  • Searching for Holy Grails A Glaring Lack of DefinitionUPDATESCIE JTC7IES D-GONEIES LOPSFuture
  • Slide Number 24
  • UGR on a luminaire cut sheet
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Position 25 deg Position 15 deg
Condition of votes UGR alternative UGR of votes UGR alternative UGR Representation Mask
1 42 172 172 69 137 137 A1
2 41 251 172 71 216 137 A3
3 72 331 172 103 296 137 A5 If conditions 3 and 4 are not the same then it could be attributed to leftright bias unequal apparatus distance between LEDs or other
4 331 71 296 137 A6
5 133 331 332 176 297 297 A10 Must be larger than condition 1
Sum of all votes 288 490
Total number of people
10 votes per person 10
Total votes 0
15 degrees the numbers of votes for the condition being brighter by observer 2 There were 10 presentations total
Observer
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 2 2 3 2 1 1 2 1 1 1 1 1 2 1 2 2 2 1 1 3 2 2 1 2 1 1 1 3 3 1 2 3 1 1 3 2 2 3
2 1 1 2 1 1 2 2 1 1 1 1 2 2 1 1 2 2 3 2 2 2 1 2 4 2 2 1 2 2 1 3 1 1 1 2 2 2 1 1 1 1 1 2 1 1
3 2 4 2 3 1 2 2 1 3 4 2 2 3 2 3 2 3 2 3 2 2 3 2 2 1 2 2 2 2 3 3 2 2 2 3 1 2 3 3 2 1 3 2 2 1 2
4 2 2 1 2 2 3 3 2 2 2 2 2 1 2 1 1 1 3 1 3 2 1 1 2 1 3 2 2 2 1 1 1 1 1 1 4 2 1 1 3
5 3 2 4 4 4 4 4 4 4 3 3 4 4 4 4 4 4 3 3 2 3 4 4 1 2 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 3
Votes observer 0 10 10 10 10 10 10 10 0 10 10 10 10 10 10 10 10 10 0 10 10 10 0 0 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Exclude
Exclude
Condition Total
1 69
2 71
3 103
4 71
5 176
Condition Condition Condition
1 1 3 1
2 1 2 2 2
3 2 3 3
4 4 4 1 4
5 3 5 3 5
Exclude Exclude Exclude
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1
2 1 2 2 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 2 1 1 1 1 3 1 1 1 1 1 1 1 1 1
3 1 2 1 2 1 3 2 2 1 2 2 3 2 2 2 1 1 2 1 2 2 2 1 2 1 1 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2
4
5 3 3 3 2 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 3 2 3 3 2 3 1 3 3 3 3 3 1 3 3 3 3 3 3 3 3 3 2 3 3 3 3 3 3
Votes observer 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 6 6 0 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly
Condition Total
1 42 1 1 2
2 41 2 1
3 72 3 1 1
4 0
5 133 5 3 2
Excluded Excluded
2 excluded
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
25 degrees
Observer Gary Nancy
Condition 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
1 3 1 3 3 2 2 2 1 2 2 2 2 3 1 1 1 3 3 2 2 1 1 1 2 2 1 2 1 1 2 1 3 1 2 1 2
2 2 3 3 2 1 2 1 1 1 2 2 1 1 1 2 3 1 1 1 2 2 1 1 2 1 2 4 2 1 1 2 2 2 1 2 1 1 1 1
3 1 1 1 2 2 3 3 3 1 2 2 3 2 2 2 1 2 3 1 2 3 3 1 2 1 1 1 2 1 1 2 2 2 2 1 2 2 1 3 1 1 1 1 1 1 2 2
4 1 1 2 1 1 2 1 3 2 3 3 4 2 2 2 3 1 3 1 2 4 2 2 3 3 1 2 1 2 2 3 3 3 2 2 3 3 3 3 2 2 2 4 1 4 1 2 3
5 4 4 4 3 4 4 4 2 4 2 4 3 4 3 4 4 4 4 4 4 3 3 4 3 4 2 4 4 4 4 4 1 3 3 4 3 4 4 4 4 4 3 4 4 3 4 3 3 5 4
Votes observer 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 8 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Looking directly Two excluded
Condition Total
1 65
2 63 End of day one
3 82
4 108
5 179
Instructions
Put 1 for each chosen condition 10 votes per observer is expected
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
Image For all conditions
Description Diffuse full area 110th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots Diffuse full area Distance m 27
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 dark blue 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 216 296 296 296 297
Small size UGR extension value UGRs NA NA 163 115 115 NA
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
This corresponds to conditions that are plotted in tabs 1 2 3 4 5
1 3 5 6 7 10
Approx 57 dia Approx 18 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 57 dia
For all conditions
Description Diffuse full area 110th area central 1100th area central 1100th area clustered 1100th area separated Diffuse full area 10X output Distance m 27
Luminous flux lm 317 3173
Luminous intensity cd 649 649
Average luminance of the luminaire Ls cdm^2 6000 60000
Conventional UGR value (source area is full exit window) 137 137 137 137 137 297
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 59914 598273 598273 598273 60000 Solid angle of the aperture sr 00015
Alternative UGR value UGR (source area is area above 500 cdm2 threshold) 137 216 296 296 296 297
Diameter of the luminous area (source or each dot - dark blue) m 01464 00463 00146 00073 01464 Lb cdm^2 10
Luminous area (gt 500 cdm^2) m^2 (dark blue) 0017 00017 000017 000017 000017 0017 Luminance of non-luminous aperture (light blue) 50
Projected luminous area (dark blue) at 50 deg m^2 00108 00011 00001 00001 00001 00108 Position index 51
Solid angle (area gt 500 cdm^2 dark blue) weff sr 00015 000015 0000015 0000015 0000015 00015 Diameter of the luminaire aperture m 01464
Small size UGR extension value UGRs NA NA 163 115 115 NA
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 20 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 51 51 51 51 51 51 51 Using Table 41 and Figure 42 from UGR document 51 51 51
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 137 137 137 137 137 137 137 257 217 297
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 137 176 216 256 296 296 296 257 217 297
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 164 163 115 115 164 NA NA
Angle to the vertical deg
Angle to the horizontal deg
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised July 31 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 50 deg m^2 001082 000342 000108 000034 000011 000011 000011 000034 000108 001082
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0001484 0001484 0001484 0001484 0001484 0001484 0001484 0000047 0000148 0001484
Modified solid angle (area gt 500 cdm^2) weff sr 0001484 0000470 0000148 0000047 0000015 0000015 0000015 0000047 0000148 0001484
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 50 deg I50 cd 649 649 648 648 647 647 647 648 648 6492
Luminous intensity of each LED I50 cd 162 162
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 222 222 222 222 222 222 222 Using Table 41 and Figure 42 from UGR document 222 222 222
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 195 195 195 195 195 195 195 315 275 355
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 195 234 274 314 354 354 354 315 275 355
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 221 221 173 173 221 NA NA
Angle to the vertical deg
Angle to the horizontal deg
r=27 m
R=25 m
H=092 m
HR = 037
Position index
=222
Draft of experimental conditions for UGR and outdoor glare demonstrationLuminaires should be located 40 degrees above axis of view 50 degrees from luminaire nadir
Revised August 5 2019
N Miller PNNL B Schlesselman Musco Y Tyukhova Acuity Brands C Waters and M Kuelenengel Univ Nebraska L Boxler
1 2 3 4 5 6 7 8 9 10
Approx 57 dia Approx 32 dia Approx 18 dia Approx 1 dia Approx 057 dia (4) Approx 029 dia (4) Approx 029 dia Approx 1 dia Approx 18 dia Approx 57 dia
Image Comments
Description Diffuse full area 1316th area 110th area 1316th area 1100th area concentrated 1100th area clustered dots 1100th area separated dots 1316th area no surround 110th area no surround Diffuse full area
Luminaire aperture diameter m 01464 01464 01464 01464 01464 01464 01464 01464 01464 01464
High luminance area diameter m 01464 00824 00463 00260 00146 00073 00073 Each small dot is 0073m in dia 00260 00463 01464
Luminous area gt 500 cdm^2 m^2 00168 00053 00017 00005 000017 000017 000017 00005 00017 00168
Modified projected luminous area at 65 deg m^2 000711 000225 000071 000023 000007 000007 000007 000023 000071 000711
Observer distance to the luminaire r m 27 27 27 27 27 27 27 27 27 27
Solid angle of aperture w sr 0000976 0000976 0000976 0000976 0000976 0000976 0000976 0000031 0000098 0000976
Modified solid angle (area gt 500 cdm^2) weff sr 0000976 0000309 0000098 0000031 0000010 0000010 0000010 0000031 0000098 0000976
Luminance of the luminous parts gt500 cdm^2 Leff cdm^2 6000 18960 59914 189327 598273 598273 598273 189327 59914 60000
Average luminance of the luminaire Ls cdm^2 6000 6034 6036 6040 6032 6032 6032 These numbers are slightly different likely only because of a rounding error 189327 59914 60000
Luminous intensity of the luminaire at 65 deg I50 cd 427 427 426 426 426 426 426 648 648 4268
Luminous intensity of each LED I50 cd 106 106
Luminance of aperture area lt500 cdm^2 cdm^2 NA 50 50 50 50 50 50 This does not factor into the equations except that the lower-luminance area is still emitting or reflecting some light 0 0 NA
Assumed background luminance Lb (cdm^2) 10 10 10 10 10 10 10 Roughly 157 lux at the eye Equation 42 from UGR L(b) = E(i)π 10 10 10
Position index for observer geometry p 25 25 25 25 25 25 25 Using Table 41 and Figure 42 from UGR document 25 25 25
Lumens from luminaire 317 317 317 317 316 316 316 317 317 3173
Conventional UGR value (source area is full exit window) 172 172 172 172 172 172 172 292 252 332
Alternative UGR value UGR (source area is area above 500 cdm2 threshold without visual acuity blurring) 172 211 251 291 331 331 331 292 252 332
Modified UGR value UGRJTC7 (source area defined according to JTC7 method) TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD
Small size UGR extension value UGRs NA NA NA 184 184 136 136 213 NA NA
Stimulus luminaire is now vertical
25 degree
R=298 m
H=126 m
HR=043
Position Index
=25
Page 7: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 8: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 9: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 10: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 11: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 12: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 13: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 14: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 15: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 16: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 17: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 18: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 19: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 20: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 21: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 22: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 23: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 24: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:
Page 25: Searching for Holy Grails: A Glaring Lack of DefinitionCIE Glare Index (CGI) 1979: CIE. Combine & correct BGI & VCP: Daylight Glare Index (DGI) 1982: Research. Modified BGI for daylight:

Presentasi BGI

Presentasi BGI

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BGI - Bentonite.pptx

BGI - Bentonite.pptx

Daysim 3.0 – DDS, New Validation Study and Annual … · and Annual Daylight Glare Probability Schedules (Part 1) ... help and a detailed tutorial ... TRNSYS Simulation Input: ...

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BGI PERSENTATION

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Dataset Points BGI (land) 224 BGI (marine) 3600

Dataset Points BGI (land) 224 BGI (marine) 3600

DYNAMIC DAYLIGHT GLARE EVALUATION - IBPSA · DYNAMIC DAYLIGHT GLARE EVALUATION Jan Wienold1 1Fraunhofer Institute for Solar Energy Systems, Heidenhofstr. 2, D-79110 Freiburg, Germany

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BGI Golfhøjskole

ECS Lab #1 of... · 4/2/2009 3 yGlare Glare Analysis EXISTING GLARE REDESIGN GLARE • Reduce glare by adding apertures on two surfaces yExisting Daylight Factors: 4.54 % 53% decrease

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Maximize the use of daylight without glare and provide ... Mellon University... · Daylighting is the use of direct, diffuse, or reflected daylight to provide full or supplemental

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Complement your offer with Somfy powered solutions · 2020-01-20 · Kitchen | convenient control of daylight Motorised Venetian blind Provide the ultimate control over light, glare

Complement your offer with Somfy powered solutions · 2020-01-20 · Kitchen | convenient control of daylight Motorised Venetian blind Provide the ultimate control over light, glare

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Daylight Glare Probability Measurements And Correlation With ...

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BGI KULIAH I

IEQ-4 Daylight Glare Control · IEQ-4 Daylight Glare Control . Points Available . Points Claimed . CIR Submitted . 2 . 1 . N . Credit Criteria . ... tel 02 8907 0900 fax 02 9957 4127

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BGI in Graphs

DAYLIGHT AVAILABILITY AND OCCUPANT VISUAL COMFORT … library/conferences...(DGI), CIE Glare Index (CGI), and Visual Comfort Probability (VCP) etc, with merits and shortcomings (Wienold

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BGI KULIAH 5

BGI KULIAH 5

Appendix A: Daylight, Sunlight, Overshadowing, Solar Glare ... · PDF fileAppendix A: Daylight, Sunlight, Overshadowing, ... and impact to daylight, sunlight, overshadowing, solar

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on building design/media/com/velux days in...EPFL Inovation Park / •Daylight provision •View out •Exposure to sunlight •Protection from glare Daylight Symposium / Paris 2019

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