Document ID: chunk:federal_register_of_legislation:F2023C00228:front:0:p14
Version: federal_register_of_legislation:F2023C00228
Segment Type: other
Provision Reference: 
Character Range: 38932–41638

in Annex 6 shall be checked by the measurement of the photometric values of points 1 to 8 on this Figure; these values shall lie within the following limits:

       1 + 2 + 3 > 0.3 lux, and 4 + 5 + 6 > 0.6 lux, and 0.7 lux > 7 > 0.1 lux and 0.7 lux > 8 > 0.2 lux

       These new values shall not be required for headlamps which have been approved before the application date of Supplement 3 to the 01 series of amendments to this Regulation (2 December 1992) nor to the extensions of such approvals.

       6.5. In the case of headlamps with an adjustable reflector the requirements of Paragraphs 6.2 to 6.4 are applicable for each mounting position indicated according to Paragraph 2.1. For verification the following procedure shall be used:

       6.5.1. Each applied position is realized on the test goniometer with respect to a line joining the centre of the light source and point HV on the aiming screen.  The adjustable reflector   is then moved into such a position that the light pattern on the screen corresponds to the aiming prescriptions of Paragraphs 6.1, 6.2 and/or 6.4;

       6.5.2. With the reflector initially fixed according to Paragraph 6.5.1, the headlamp must meet the relevant photometric requirements of Paragraphs 6.2, 6.3 and 6.4;

       6.5.3. Additional tests are made after the reflector has been moved vertically +/- 2 degrees  or  at least into the maximum position, if less than 2 degrees , from its initial position by means of the headlamps adjusting device.  Having re-aimed the headlamp as a whole (by means of the goniometer for example) in the corresponding opposite direction the light output in the following directions shall be controlled and lie within the required limits: passing beam: points HV and 75R (75L respectively);

       driving beam: points HV (percentage of Emax).

       6.5.4. If the applicant has indicated more than one mounting position, the procedure of Paragraphs 6.5.1 to 6.5.3 shall be repeated for all the other positions;

       6.5.5. If the applicant has not asked for special mounting positions, the headlamp shall be aimed for measurements of Paragraphs 6.2 to 6.4 with the headlamps adjusting device in its mean position.  The additional tests of Paragraph 6.5.3 shall be made with the reflector moved into its extreme positions (instead of +/- 2 degrees ) by means of the headlamps adjusting device.

       6.6. Measurements of the illumination produced on the screen by the driving beam shall be taken with the same headlamp adjustment as for measurements under 6.3 above, or, in the case of a headlamp providing a driving beam only, in accordance with the final Paragraph of 6.2.  In the case where more than one light