Document ID: chunk:federal_register_of_legislation:F2023C00155:body:0:p12
Version: federal_register_of_legislation:F2023C00155
Segment Type: other
Provision Reference: 
Character Range: 31469–34190

illuminate a space of at least 130 x 240 mm, the devices of category 2 a space of at least 200 x 280 mm.

       2. Colour of the Light

       The light of the illuminating device shall be sufficiently colourless in order not to modify noticeably the colour of the rear-registration-plate.

       3. Angle of Incidence

       The manufacturer of the illuminating device shall specify the position in which the device is to be fitted in relation to the space for the registration plate, the device shall be so placed that the angle of incidence of the light on the surface of the plate does not exceed 82 degrees  at any point of the surface to be illuminated, this angle being measured from the extremity of the illuminating area of the device which is furthest   from the surface of the plate.  If there is more than one illuminating optical element, the foregoing requirement shall apply only to that part of the plate intended to be illuminated by the element concerned.

       The device shall be so designed that no light is emitted directly towards the rear with the exception of red light if the device is combined or grouped with a rear lamp.

       4. Measuring Procedure

       Luminance measurements shall be made on a piece of clean white blotting paper with a minimum diffuse reflection factor of 70%, having the same dimensions as the registration plate, placed in the position normally occupied by it and 2 mm in front of its holder.

       Luminance measurements shall be made perpendicularly to the surface of the paper at the points shown in paragraph 5 of this annex, each point representing a circular area of 25 mm in diameter.

       5. Photometric Characteristics

       At each of the points of measurement shown below, the luminance B shall be not less than 2 cd/m2.

       Fig. 1

       Points of measurement for category 1

       Fig. 2

       Points of measurement for category 2

       The gradient of the luminance between the values Bl and B2, measured at any two points l 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

Annex 7

DEFINITION OF THE TERMS OF PARAGRAPHS 2.7. TO 2.11. OF THIS REGULATION

Note:

The object being to check that a minimum distance is respected and, in order to avoid the determination of the exact limit of the illuminating surface, simplified methods may be used providing that they do not lead to interpretations which would not correspond to the provisions of minimum distance required by the Regulations.

COMPILATION NOTES
This compilation of Vehicle Standard (Australian Design Rule 53/00 – Front and Rear Position Lamps, Stop Lamps,