Document ID: chunk:federal_register_of_legislation:F2024C00148:reg:9:p2
Version: federal_register_of_legislation:F2024C00148
Segment Type: reg
Provision Reference: reg 9 (pt 2/13)
Character Range: 71051–74198

vehicle opening while a driver's eye is within any fixed position of the standard isotropy range, then the value for luminance diffuse illuminator shall be the one of ISO 16505:2015 subclause 7.8.2., Test 2: 1,300 to 1,500 cd/m².

              6.2.2.3.3.3. Grey scale rendering

              A CMS shall have a sufficient grey scale rendering. CMS shall display a tonal range of at least eight distinguishable different grey tonal steps on the monitor.

              For the grey scale rendering, the test method of paragraph 1.4. of Annex 12 shall be applied.

              6.2.2.3.3.4. Colour rendering

              For colour rendering, the hue angle of reproduced colour of the chart patches on the monitor shall satisfy the following requirements. The colour coordinates are described based in the CIE 1976 uniform colour space:

                  (a) Red colour coordinates shall not exceed the range of (0°, 44.8°) or (332.2°, 360°);

                  (b) Green colour coordinates shall not exceed the range of (96.6°, 179.9°);

                  (c) Blue colour coordinates shall not exceed the range of (209.9°, 302.2°);

                  (d) Yellow colour coordinates shall not exceed the range of (44.8°, 96.6°);

                  (e) To distinguish from the white colour, define distance from white as
                  Ri ≥ 0.02, where Ri is the chromatic distance of each colour patch
                  (i = Red, Green, Blue, Yellow), relative to white (i = White).

              Figure B shows an illustrative tolerance range described on CIE 1976 uniform colour space.

              Figure B

              Amber, blue and red light signals shall be distinguishable from each other.

              6.2.2.3.3.5. Artefacts

              The operator's manual shall refer to possible artefacts and their impact on the partial occlusion of the field of view and of the objects which may require the driver to be particularly alert and attentive.

              6.2.2.3.3.5.1. Smear

               Smear shall be transparent and not be more than 10 per cent of the maximum luminance value of the displayed glare source luminance level, which causes smear effect.

              6.2.2.3.3.5.2. Blooming and lens flare

              The total area of disturbing blooming and lens flare areas shall not cover more than 25 per cent of the displayed camera image.

              6.2.2.3.3.5.3. Point light sources

              The CMS shall have an operation mode in which the driver of the vehicle equipped with CMS can recognize two point light sources (e.g. passing beam headlights) rendered as two distinguishable separate point light sources.

              In this operation mode, a set of two point light sources corresponding to a vehicle passing beam headlamp each having a reference luminous intensity 1,750 cd and being separated each other laterally by 1.3 m and located at a distance of 250 m away from the CMS shall be distinguishable as two point light source. This requirement is applicable to Class I, Class II and Class III devices for indirect vision.

              The point light source detection factor