Document ID: chunk:federal_register_of_legislation:F2023C00165:reg:15
Version: federal_register_of_legislation:F2023C00165
Segment Type: reg
Provision Reference: reg 15
Character Range: 192283–193325

15

 Reference luminous flux for headlamp testing: 1,840lm at approx. 12V.

    7/ The eccentricity is measured only in viewing directions A and B as shown in the figure on sheet HIR1/1. The points to be measured are those whether the projection of the outside of the end turns nearest to or furthest from the reference plane crosses the filament axis.
8/ The viewing direction is drection B as shown in the figure on sheet HIR1/1.
9/ To be checked by means of a "box-system ". Sheet HIR1/3.
    10/ The ends of the filament are defined as the points where, when the viewing direction as defined in note 8/ above, the projection of the outside of the end turns crosses the filament axis.
11/ Dimensions shall be checked with O-ring mounted.
CATEGORY HIR1/1

Sheet HIR1/3

Screen projection requirements
 This test is used to determine, by checking whether the filament is correctly positioned relative to the reference axis and the reference plane, whether a lamp complies with the requirements.

     a1      a2      b1    b2   c1   c2