Photometric characteristics. 7.1. In the reference axis, the light emitted by each of the two samples shall be of not less than the minimum intensity and of not more than the maximum intensity specified below: Minimum Maximum (cd) (cd)
Photometric characteristics. At each of the points of measurement shown in Annex 3, the luminance B shall be at least equal to 2.5 cd/m2.
Photometric characteristics. At each of the points of measurement shown in paragraph 3. of Annex 3, the luminance B shall be at least
Photometric characteristics. 9 10. Conformity of production................................................................................................................. 10 11. Penalties for non-conformity of production ..................................................................................... 10
Photometric characteristics. At each of the points of measurement shown in Paragraph 9 Annex 3, the luminance B shall be at least equal to 2.5 cd/m2. The gradient of the luminance between the values B1 and B2, measured at any two points 1 and 2 selected from among those mentioned above, shall not exceed 2 x Bo/cm, Bo being the minimum luminance measured at the various points, that is to say:
Photometric characteristics. For the approval of this device, the illuminated area to be occupied by the plate is determined. The illuminated areas are grouped in the following categories: - Category 1a: illuminated area of at least 340 x 240 mm (Figure A3-IX). - Category 1b: illuminated area of at least 520 x 120 mm (Figure A3-X). - Category 1c: illuminated area of at least 255 x 165 mm, for use on agricultural or forestry tractors, (Figure A3-XI). - Category 2a: illuminated area of at least 330 x 165 mm (Figure A3-XII). - Category 2b: illuminated area of at least 440 x 220 mm (Figure A3-XIII). - Category 1: illuminated area of at least 130 x 240 mm for use on a vehicle of category L (Figure A3-XIV). - Category 2: illuminated area of at least 200 x 280 mm for use on a vehicle of category L (Figure A3-XV). At each of the points of measurement for the categories of illuminated areas shown in paragraph 3. of Annex 3, the luminance B shall be at least
Photometric characteristics. For the approval of this device, the illumination of the space to be occupied by the plate is determined. The illuminated areas are grouped in the following categories: Category 1a: illuminated area of at least 340 x 240 mm (Figure A3-IX). Category 1b: illuminated area of at least 520 x 120 mm (Figure A3-X). Category 1c: illuminated area of at least 255 x 165 mm, for use on agricultural or forestry tractors, (Figure A3-XI). Category 2a: illuminated area of at least 330 x 165 mm (Figure A3-XII). Category 2b: illuminated area of at least 440 x 220 mm (Figure A3-XIII).
Photometric characteristics. 8 8. Test procedure ............................................................................................................................... 9 9. Colour of light emitted .................................................................................................................. 10 10. Remarks concerning colours ......................................................................................................... 10
Photometric characteristics. At each of the points of measurement shown below, the luminance B shall be not less than 2 cd/m2. Points of measurement for category 1 Points of measurement for category 2 The gradient of the luminance between the values B1 and B2, measured at any two points 1 and 2 selected from among those mentioned above, shall not exceed 2 x B0/cm, B0 being the minimum luminance measured at the various points, that is to say: B2 − B1 dis xxx xx 1 − 2 in cm ≤ 2 x B0
