Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p16
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 16/35)
Character Range: 487547–490399

of the zones I, II, III and IV.

        6.2.7. The illumination values in zones "A" and "B" as shown in figure C in Annex 3 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: [13]/

                 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

        6.2.8. Headlamps designed to meet the requirements of both right-hand and left-hand traffic must, in each of the two setting positions of the optical unit or of the filament lamp, meet the requirements set forth above for the corresponding direction of traffic.

        6.2.9. The requirements in paragraph 6.2.5. above shall also apply to headlamps designed to provide bend lighting and/or that include the additional light source referred to in paragraph 6.2.10.2.  In the case of a headlamp designed to provide bend lighting its alignment may be changed, provided that the axis of the beam is not displaced vertically by more than 0.2 °.

        6.2.9.1. If bend lighting is obtained by:

        6.2.9.1.1. swivelling the passing beam or moving horizontally the kink of the elbow of the cut-off, the measurements shall be carried out after the complete headlamp assembly has been reaimed horizontally, e.g. by means of a goniometer;

        6.2.9.1.2. moving one or more optical parts of the headlamp without moving horizontally the kink of the elbow of the cut-off, measurements shall be carried out with these parts being in their extreme operating position;

        6.2.9.1.3. means of one additional light source without moving horizontally the kink of the elbow of the cut-off, measurements shall be carried out with this light source activated.

        6.2.10. Only one principal light source is permitted for each passing beam headlamp.  However, a maximum of two additional light sources are permitted as follows:

        6.2.10.1. One additional light source inside the passing beam headlamp according to Regulation No. 37 may be used to contribute to bend lighting.

        6.2.10.2. One additional light source according to Regulation No. 37, inside the passing beam headlamp, may be used for the purposes of generating infrared radiation.  It shall only be activated at the same time as the principal light source.  In the event that the principal light source fails, this additional light source shall be automatically switched off.

        6.2.10.3. In the event of failure of an additional light source, the headlamp shall continue to fulfil the requirements of the passing beam.

        6.3. Provisions concerning driving beams

        6.3.1. In the case of a headlamp designed to provide a driving beam and a passing beam, measurements of the illumination produced