IEC 62707-1-2018 pdf free.LED-binning – Part 1: General requirements and white colour grid intended for automotive applications.
This part of lEG 62707 specifies general requirements, a grid and a corresponding code for the colour binning of white LED packages emitting incoherent, visible radiation. It applies for LED packages intended for automotive applications.
Other parts of the lEG 62707 series covering chromaticity of coloured LED packages, luminous flux/luminous intensity, colour rendering and forward voltage are in preparation or under consideration.
NOTE 1 This International Standard does not apply for LED modules, LED lamps and LED luminaires.
NOTE 2 Even though the words “white lighr are used, the purpose of this International Standard is not to define white light”, but to specify a grid and a corresponding colour code for the colour binning of white LED packages emitting incoherent, visible radiation. The area covered by the grid may differ from the definition of white light given in other standards or regulations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC/TS 62504, General lighting — LEDs and LED modules — Terms and definitions
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in IEC/TS 62504, as well as the following apply.
3.1 bin restricted range of LED package performance characteristics used to delimit a subset of LED packages near a nominal LED package performance as identified by chromaticity, photometric performance and forward voltage
3.2 grid entity representing colour coordinates and specified by a set of grid points
3.3 grid point colour coordinate in u’, V’ colour space (or its equivalent in the X, y colour space) identified by two discrete indices, the first index p counting steps along the Planckian locus, and its extension beyond the high temperature boundary towards blue colours and second index j along Judd isothermal lines.IEC 62707-1 pdf free download.