WELL-BALANCED ULTRA HIGH INDEX 1.70

WELL-BALANCED ULTRA HIGH INDEX 1.70

COMPARISON 1.70 with 1.67COMPARISON 1.70 with 1.67

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

　　

1.70 material 1.67 material

INDEX 1.70 1.67

ABBE NUMBER 36 32

SPECIFIC GRAVITY 1.41 1.37

THICKNESS ◎ ○

TRANSPARENCY ◎ ○

THERMINAL RESISTANCE ○ ○

TENSILE STRENGTH ○ ◎

IMPACT RESISTANCE ○ ○

TINTABILITY ○ ◎

PRODUCTION RANGE ◎ ○

COMPARISON 1.70 with 1.74COMPARISON 1.70 with 1.74

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

　　

1.70 material 1.74 material

INDEX 1.70 1.74

ABBE NUMBER 36 33

SPECIFIC GRAVITY 1.41 1.46

THICKNESS ○ ◎

TRANSPARENCY ◎ ○

THERMINAL RESISTANCE ○ △

TENSILE STRENGTH ○ △

IMPACT RESISTANCE ○ △

TINTABILITY ○ △

PRODUCTION RANGE ○ ◎

COATING COMPARISONCOATING COMPARISON

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

CoatingsSPS

(Super Power Shield)

PGC(Pro Guard

Coating)

CMC(Clean Multi

Coating)

HMC(Hard Multi

Coating)

Transmittance 99% 99% 99% 98.5%

Easy to Clean(Oil and Water repellent)

◎ ◎ ○ ○

Scratch Resistance ◎ ○ △ △

Durability(Anti Edging Crack

Property)

◎ ○ ○ ○

Super Power Shield coatingSuper Power Shield coating

Super Power Shield coating

Anti Edging Crack PropertySuper Power Shield coating

Anti Edging Crack Property

SPS 　　　　　　　　　　　 Conventional Coating 　

Super Power Shield coating

Superior Scratch ResistanceSuper Power Shield coating

Superior Scratch Resistance

SPS 　　　　　　　　　　　 Conventional Coating 　

Super Power Shield coating

Easy to CleanSuper Power Shield coating

Easy to Clean

SPS 　　　　　　　　　　　 Conventional Coating 　

Edging CrackEdging Crack

・ SPS coating prevents invisible edging crack

Visible Edging Crack Invisible Edging CrackIt might be visible crack gradually.

Super Power Shield coatingSuper Power Shield coating

・ The Super Power Shield coating offers outstanding resistance and durability, is created by Tokai’s latest thin-film technology.

Coating Image

Fluorine compound

Hard coating

Lens

New Cushion layerPrevent the edging crack

ADVANCED TECHNOLOGY

ULTRA HIGH INDEX 1.76

ADVANCED TECHNOLOGY

ULTRA HIGH INDEX 1.76

47% thinner than the 1.50 conventional lens.

S-6.00　 75ｍｍ

1.76AS 1.76AS

６．３㎜11． 8㎜

The heights of thickness and lightness

1.76AS 1.50

ｍｍ（ Negative: Edge thickness / Positive: Center thickness

Power Dia.1.76AS

1.70AS

1.67AS

1.60AS

1.60 1.50

-2.00 75 2.7 2.8 3.1 3.7 3.9 5.2

-4.00 75 4.5 4.8 5.2 5.7 6.5 8.4

-6.00 75 6.3 6.8 7.4 8.1 9.1 11.8

-8.00 70 7.3 8.0 8.5 9.6 10.2 13.1

-10.00

70 9.2 10.2 10.9 12.3 13.1 　－

+2.00

70 2.3 2.3 2.3 2.8 3.0 3.9

+4.00

70 3.6 3.9 3.9 4.5 4.9 6.0

+6.00

65 4.5 4.9 4.9 5.7 6.2 7.7

+8.00

65 5.8 6.2 6.4 7.6 8.1 10.3

Thickness ComparisonThickness Comparison

Power Dia.TOKAI (S) company

1.76AS 1.74AS

-2.00 75 2.7 2.9

-4.00 75 4.5 4.6

-6.00 75 6.3 6.4

-8.00 70 7.3 7.6

-10.00 70 9.2 9.7

+2.00 70 2.3 2.8

+4.00 70 3.6 4.0

+6.00 65 4.5 4.9

+8.00 65 5.8 6.3

Thickness Comparison 2Thickness Comparison 2

ｍｍ（ Negative: Edge thickness / Positive: Center thickness

Tensile Strength Test

MaterialMaterial

Ten

sile Stren

gth

1.701.70

1.741.74 1.761.76

1.501.50

≒

1.60/421.60/42

2 times as strong as 1.50