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Proceedings Paper

A color management system for multi-colored LED lighting
Author(s): Maumita Chakrabarti; Anders Thorseth; Jørgen Jepsen; Dennis D. Corell; Carsten Dam-Hansen
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Paper 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).

Paper Details

Date Published: 8 September 2015
PDF: 9 pages
Proc. SPIE 9571, Fourteenth International Conference on Solid State Lighting and LED-based Illumination Systems, 95710B (8 September 2015); doi: 10.1117/12.2188427
Show Author Affiliations
Maumita Chakrabarti, Technical Univ. of Denmark (Denmark)
Anders Thorseth, Technical Univ. of Denmark (Denmark)
Jørgen Jepsen, Technical Univ. of Denmark (Denmark)
Dennis D. Corell, Technical Univ. of Denmark (Denmark)
Carsten Dam-Hansen, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 9571:
Fourteenth International Conference on Solid State Lighting and LED-based Illumination Systems
Matthew H. Kane; Jianzhong Jiao; Nikolaus Dietz; Jian-Jang Huang, Editor(s)

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