A color management system for multi-colored LED lighting.

Maumita Chakrabarti, Anders Thorseth, Jørgen Jepsen, Dennis Dan Corell, Carsten Dam-Hansen

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    A new color control system is described and implemented for a five–color LED light engine, covering a wide white gamut. The system combines a new way of using pre-calibrated look-up tables and a rule-based optimization of chromaticity distance from the Planckian locus with a calibrated color sensor. The color sensor monitors the chromaticity of the mixed light providing the correction factor for the current driver by using the generated look-up table. The long term stability and accuracy of the system will be experimentally investigated with target tolerance within a circle radius 0.0011 in the uniform chromaticity diagram (CIE 1976)
    Original languageEnglish
    Title of host publicationProceedings of SPIE
    Number of pages9
    PublisherSPIE - International Society for Optical Engineering
    Publication date2015
    Publication statusPublished - 2015
    Event14th International Conference on Solid State Lighting and LED-based Illumination Systems
    : SPIE Optical Engineering + Applications
    - San Diego Convention Center, San Diego, United States
    Duration: 9 Aug 201513 Aug 2015
    Conference number: 14


    Conference14th International Conference on Solid State Lighting and LED-based Illumination Systems
    LocationSan Diego Convention Center
    Country/TerritoryUnited States
    CitySan Diego
    SeriesLighting Research and Technology

    Bibliographical note

    Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


    • Solid state lighting
    • Multi-color LEDs
    • Uncertainty budget
    • Light quality
    • Light stability
    • Color control
    • Color sensor
    • Product testing.


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