- the quality of a color as determined by its dominant wavelength
- lamps having the following chromaticity coordinates x and y:
- ‘Chromaticity’, which means the property of a colour stimulus defined by its chromaticity coordinates, or by its dominant or complementary wavelength and purity taken together.
- ‘Chromaticity’, which is the property of a colour stimulus defined by its chromaticity coordinates, or by its dominant or complementary wavelength and purity taken together;
- The chromaticity co-ordinates as defined in paragraph 7. of this Regulation shall be conformed to.
- ‘White light source’ means a light source having chromaticity coordinates that satisfy the following requirement:
- single capped fluorescent lamps having a diameter of 16 mm (T5) 2G11 4 pin base, Tc = 3200 K with chromaticity coordinates x=0,415 y=0,377 and Tc = 5500 K with chromaticity coordinates x=0,330 y=0,335;
- The sampled retro-reflector shall be subjected to photometric measurements at the points and the chromaticity coordinates provided for in the Regulation.
- This interface refers to the technical requirements for the chromaticity and luminosity of vehicle headlights to ensure the correct visibility of reflective lineside signage and reflective clothing.