Common use of Colour Clause in Contracts

Colour. 2.1. Colour tests shall be made with a measuring system that determines CIE trichromatic co-ordinates of the received light with an accuracy of ±0.002. 2.2. The trichromatic coordinates shall be measured with a colourimetric receiver integrating over a right circular cone subtending an angle of minimum 5° and maximum 15°, at the centre of the filament. 2.3. Measuring directions (see the figure below). 2.3.1. Initially, the receiver shall be positioned perpendicular to the filament light source axis and to the filament axis (or plane in case of a curved filament). After measurement the receiver shall be moved around the filament light source in bi-directional steps of about 30° until the area specified in paragraphs 2.3.2. or 2.3.3. is covered. In each position a measurement shall be made. However, no measurement shall be made when: (a) The centreline of the receiver coincides with the filament axis; or (b) The line of sight between the receiver and the filament is blocked by opaque (non-transmitting) parts of the light source, such as lead wires or a second filament, if any. 2.3.2. For filament light sources used in headlamps, measurements shall be made in directions around the filament light source with the centreline of the receiver aperture located within an angle ±30°, from the plane perpendicular to the filament light source axis with the origin in the centre of the filament. In case of filament light sources with two filaments, the centre of the driving beam filament shall be taken. 2.3.3. For filament light sources used in light signalling devices, measurements shall be made in directions around the filament light source with exception of: (a) The area claimed or covered by the cap of the filament light source; and (b) The immediate transition area along the cap. In case of filament light sources with two filaments, the centre of the major filament shall be taken. In case of filament light source categories with a defined distortion-free angle, the measurement shall be done only within the defined angle. Figure illustrating the positions of colourimetric receiver

Colour. 2.1. Colour tests shall be made with a measuring system that determines CIE trichromatic co-ordinates of the received light with an accuracy of ±0.002. 2.2. The trichromatic coordinates shall be measured with a colourimetric receiver integrating over a right circular cone subtending an angle of minimum 5° and maximum 15°, at the centre of the filament. 2.3. Measuring directions (see the figure below). 2.3.1. Initially, the receiver shall be positioned perpendicular to the filament light source axis and to the filament axis (or plane in case of a curved filament). After measurement the receiver shall be moved around the filament light source in bi-directional steps of about 30° until the area specified in paragraphs 2.3.2. or 2.3.3. is covered. In each position a measurement shall be made. However, no measurement shall be made when: (a) The centreline of the receiver coincides with the filament axis; or (b) The line of sight between the receiver and the filament is blocked by opaque (non-transmitting) parts of the light source, such as lead wires or a second filament, if any. 2.3.2. For filament light sources used in headlamps, measurements shall be made in directions around the filament light source with the centreline of the receiver aperture located within an angle ±30°, from the plane perpendicular to the filament light source axis with the origin in the centre of the filament. In case of filament light sources with two filaments, the centre of the driving beam filament shall be taken. 2.3.3. For filament light sources used in light signalling devices, measurements shall be made in directions around the filament light source with exception of: (a) The area claimed or covered by the cap of the filament light source; and (b) The immediate transition area along the cap. In case of filament light sources with two filaments, the centre of the major filament shall be taken. In case of filament light source categories with a defined distortion-free angle, the measurement shall be done only within the defined angle. Figure illustrating the positions of colourimetric receiverreceiver Centreline of receiver shall move within angle and around the filament light source Receiver shall move around filament but aperture shall not overlap any cap or base part and its immediate transition area. In case of filament light source categories with a defined distortion-free angle, the measurement shall be done only within the defined angle.

Colour. 2.1. Colour tests shall be made with a measuring system that determines CIE trichromatic co-ordinates of the received light with an accuracy of ±0.002. 2.2. The trichromatic coordinates shall be measured with a colourimetric receiver integrating over a right circular cone subtending an angle of minimum 5° and maximum 15°, at the centre of the filament. 2.3. Measuring directions (see the figure below). 2.3.1. Initially, the receiver shall be positioned perpendicular to the filament light source axis and to the filament axis (or plane in case of a curved filament). After measurement the receiver shall be moved around the filament light source in bi-directional steps of about 30° until the area specified in paragraphs 2.3.2. or 2.3.3. is covered. In each position a measurement shall be made. However, no measurement shall be made when: (a) The centreline of the receiver coincides with the filament axis; or (b) The line of sight between the receiver and the filament is blocked by opaque (non-transmitting) parts of the light source, such as lead wires or a second filament, if any. 2.3.2. For filament light sources used in headlamps, measurements shall be made in directions around the filament light source with the centreline of the receiver aperture located within an angle ±30°, from the plane perpendicular to the filament light source axis with the origin in the centre of the filament. In case of filament light sources with two filaments, the centre of the driving beam filament shall be taken. 2.3.3. For filament light sources used in light signalling devices, measurements shall be made in directions around the filament light source with exception of: (a) The area claimed or covered by the cap of the filament light source; and (b) The immediate transition area along the cap. In case of filament light sources with two filaments, the centre of the major filament shall be taken. In case of filament light source categories with a defined distortion-free angle, the measurement shall be done only within the defined angle. Figure illustrating the positions of colourimetric receiverreceiver LED light sources of all categories with integrated heat sink shall be measured in still air at ambient temperature of (23 ± 2) °C, and at an additional ambient temperature if indicated in the relevant data sheet of Annex 1. For these measurements the minimum free air space as defined in the data sheets shall be maintained. LED light sources of all categories with definition of a temperature Tb shall be measured by stabilising the Tb-point at the specific temperature defined on the category data sheet. In case a maximum test temperature is specified in the relevant data sheet of Annex 1 additional measurements shall be carried out at elevated temperatures according to the method described in paragraph 5 of this annex.

Colour. 2.1. Colour tests shall be made with a measuring system that determines CIE trichromatic co-ordinates of the received light with an accuracy of ±0.002. 2.2. The trichromatic coordinates shall be measured with a colourimetric receiver integrating over a right circular cone subtending an angle of minimum 5° and maximum 15°, at the centre of the filament. 2.3. Measuring directions (see the figure below). 2.3.1. Initially, the receiver shall be positioned perpendicular to the filament light source axis and to the filament axis (or plane in case of a curved filament). After measurement the receiver shall be moved around the filament light source in bi-directional steps of about 30° until the area specified in paragraphs 2.3.2. or 2.3.3. is covered. In each position a measurement shall be made. However, no measurement shall be made when: (a) The centreline of the receiver coincides with the filament axis; or (b) The line of sight between the receiver and the filament is blocked by opaque (non-transmitting) parts of the light source, such as lead wires or a second filament, if any. 2.3.2. For filament light sources used in headlamps, measurements shall be made in directions around the filament light source with the centreline of the receiver aperture located within an angle ±30°, from the plane perpendicular to the filament light source axis with the origin in the centre of the filament. In case of filament light sources with two filaments, the centre of the driving beam filament shall be taken. 2.3.3. For filament light sources used in light signalling devices, measurements shall be made in directions around the filament light source with exception of: (a) The area claimed or covered by the cap of the filament light source; and (b) The immediate transition area along the cap. In case of filament light sources with two filaments, the centre of the major filament shall be taken. In case of filament light source categories with a defined distortion-free angle, the measurement shall be done only within the defined angle. Figure illustrating the positions of colourimetric receiverreceiver LED replacement light sources shall be measured in still air at ambient temperature of (23 ± 2) °C, and at an additional ambient temperature if indicated in the relevant data sheet of Annex 1. In case a maximum test temperature is specified in the relevant data sheet of Annex 1 additional measurements shall be carried out at elevated temperatures according to the method described in paragraph 5 of this annex.