A color management system for multi-colored LED lighting

Maumita Chakrabarti; Anders Thorseth; Jørgen Jepsen; Dennis D. Corell; Carsten Dam-Hansen

doi:10.1117/12.2188427

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8 September 2015 A color management system for multi-colored LED lighting

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

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Proceedings Volume 9571, Fourteenth International Conference on Solid State Lighting and LED-based Illumination Systems; 95710B (2015) https://doi.org/10.1117/12.2188427
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

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 lookup 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 lookup table. The long term stability and accuracy of the system will be experimentally investigated with target tolerance within a circle radius of 0.0013 in the uniform chromaticity diagram (CIE1976).

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Maumita Chakrabarti, Anders Thorseth, Jørgen Jepsen, Dennis D. Corell, and Carsten Dam-Hansen "A color management system for multi-colored LED lighting", Proc. SPIE 9571, Fourteenth International Conference on Solid State Lighting and LED-based Illumination Systems, 95710B (8 September 2015); https://doi.org/10.1117/12.2188427

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