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ISO 6742-2 regulation of reflector for bicycle (2)

Nov 20.2020

II. Photometry requirement

Table 4 – Coefficients of luminous intensity, CIL, for conventional reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±5°

±20°

White

0°20’

 

1200

800

400

1°30’

 

20

11.2

10

Yellow

0°20’

 

750

500

250

1°30’

 

12.5

7

6.25

Red

0°20’

 

300

200

100

1°30’

 

5

2.8

2.5

 

Table 5 – Coefficients of luminous intensity, CIL, for conventional reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±0°

±20°

White

0°12’

 

2500

1650

850

1°30’

 

26

18

11

Yellow

0°12’

 

1560

1030

530

1°30’

 

21

15

10

Red

0°12’

 

625

410

210

1°30’

 

9

6

4

 

Table 6 – Coefficients of luminous intensity, CIL, for wide angle reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±0°

±20°

±0°

±30°

±0°

±40°

±0°

±50°

White

0°20’

 

1800

1200

610

540

470

400

1°30’

 

34

24

15

15

15

15

Yellow

0°20’

 

1125

750

380

335

290

250

1°30’

 

21

15

10

10

10

10

Red

0°20’

 

450

300

150

135

115

100

1°30’

 

9

6

4

4

4

4

 

 

 

 

 

 

 

Table 7 – Coefficients of luminous intensity, CIL, for wide angle reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±0°

±20°

±0°

±30°

±0°

±40°

±0°

±50°

White

0°12’

 

2500

1650

850

750

650

550

1°30’

 

26

18

11

11

11

11

Yellow

0°12’

 

1560

1030

530

465

405

340

1°30’

 

21

15

10

10

10

10

Red

0°12’

 

625

410

210

185

160

135

1°30’

 

9

6

4

4

4

4


Table 8 – Coefficients of luminous intensity, CIL, for pedal reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±0°

±20°

Yellow

0°20’

 

300

200

100

1°30’

 

12

9

6

 

Table 9 – Coefficients of luminous intensity, CIL, for pedal reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±5°

±20°

Yellow

0°12’

 

450

700

400

1°30’

 

30

20

10

 

Table 10 – Coefficients of luminous intensity, CIL, for high values reflectors

Colour

Observation angle α

Entrance angle β(in degree)

Vertical V

Horizontal H

±10°

±5°

±20°

Red

0°20’

 

1000

700

400

1°30’

 

30

20

10

 

 “ISO 6742-2 Cycles-Lighting and retro-reflective devices-Part2: Retro-reflective devices”