USER CONFERENCE 2014

APRIL 28, 2014

SIDE TURN SIGNALS FOR LARGE TRUCKS

Sandeep Saxena

Optical & Advanced Engineering

SAE SPECIFICATION

INTERPOLATING LID

RECREATING SYMMETRICAL LID

38 X 1/0.5 X 1.25 = 95 LUM

FLAT LENS EFFECT

PS Applications

RISK AREAS

• ZONAL VALUES OK

• WIDE ANGLE TEST

POINTS

• SIDEMARKER

FUNCTION??

MACRO FOCAL APPROACH

KEY POINTS

•LAYOUT OF

REFLECTORS

•TOOLING

CONSIDERATIONS

•SURPRISE ELEMENTS

DESIGN STRATEGY

12 3 4

5

6

18 Lumens per LED considered after ALL losses

LED: NICHIA

1

2

3

4

5

6

SIDE TURN INDICATOR

SIDEMARKER AT 1/7th INTENSITY

SIMULATION VS ACTUAL PERFORMANCE

ECE CATEGORY 6 DIRECTION INDICATOR

0 DEGREE

60 DEGREE

GEOMETRY

A

C

BDESIGN STRATEGY

LIGHT COLLECTION FROM AREA “A”

LIGHT COLLECTION FROM “B & C” AREAS

OPTICAL SURFACES INTEGRATED IN CAD MODEL

20lum/LED with Optic free lens