Photometric measurements. When photometric measurements are taken, stray reflexions shall be avoided by appropriate masking.
Photometric measurements. 18 5 Minimum requirements for conformity of production control procedures.................................... 20 6 Minimum requirements for sampling by an inspector................................................................... 22
Photometric measurements. 19 4 Minimum requirements for conformity of production control procedures....................................... 21 5 Minimum requirements for sampling by an inspector...................................................................... 23 Scope This Regulation applies to rear fog lamps for vehicles of categories L3, L4, L5, L7, M, N, O, and T.1
Photometric measurements. 19 4 Minimum requirements for conformity of production control procedures....................................... 21 5 Minimum requirements for sampling by an inspector...................................................................... 23 This Regulation applies to:
Photometric measurements. 17 4 Colour of white light ....................................................................................................................... 20 5 Minimum requirements for conformity of production control procedures ...................................... 21
Photometric measurements. 3.1.2.1. Photometric measurements shall be carried out on the samples before and after the test.
3.1.2.2. These measurements shall be made using a standard (étalon) light source and/or LED module(s), or if applicable with a standard gas-discharge light source, as present in the road illumination device, at the following points:
(a) In the case of classes A, B and D: - B 50 L and 50 R for the passing-beam (B 50 R and 50 L in the case of headlamps intended for left-hand traffic); - Imax for the driving-beam.
(b) In the case of AFS: - B50L and 50V for the Class C passing-beam lighting; - Imax for the driving-beam of a system
(c) In the case of classes BS, CS, DS and ES: - B 50, 50L and 50R for Class BS headlamp, 0.86D/3.5R, 0.86D/3.5L, 0.50U/1.5L and 1.5R for Class CS, DS and ES headlamps for the passing beam or a passing/driving lamp; - Imax for the driving beam of a driving lamp or a passing/driving lamp;
(d) In the case of front fog lamps: - intersection VV line with line 6 and - intersection VV line with line 4.
3.1.2.3. Results The variation between the photometric values measured on each sample before and after the test shall not exceed 10 per cent including the tolerances of the photometric procedure.
Photometric measurements. 20 4 Minimum requirements for conformity of production control procedures.................................... 20 5 Minimum requirements for sampling by an inspector................................................................... 24 6 Minimum angles required for light distribution in space .............................................................. 26
Photometric measurements. 5 Photometric measurements for the rear-registration-plate illuminating device"
Photometric measurements. 19 3 Front and rear position lamps, end-outline marker lamps and stop-lamps: minimum angles required for light distribution in space of these lamps ..................................................................... 22
Photometric measurements. In addition to the following paragraph the photometric measurements are carried out according to Xxxxx 5 of the Resolution XYZ
