Computational lighting by an LED-based system

Ming-Chin Chien; Chung-Hao Tien

doi:10.1117/12.964664

11 October 2012 Computational lighting by an LED-based system

Ming-Chin Chien, Chung-Hao Tien

Proceedings Volume 8486, Current Developments in Lens Design and Optical Engineering XIII; 84860R (2012) https://doi.org/10.1117/12.964664
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

A methodology analogous to a general lens design rule was proposed to step-by-step optimize the spectral power distribution (SPD) of a composite light-emitting diodes (LEDs) cluster. The computation is conducted for arbitrary SPD combination for the applications in radiometry, photometry and colorimetry, respectively. Based on the matrix computation, a spectrally tunable source is implemented to strategically manipulate the chromaticity, system efficiency and light quality according to all kinds of operational purposes. By the R/G/B/A/CW light engine with graphic utility interface, the cluster engine was experimentally validated to offer a wide-ranged operation in ambient temperature (T_a = 10°C to 100°C) with high color quality scale (CQS < 85 points) as well as high luminous efficiency (LE < 100 lm/watt) over the chromaticity point from 2800K to 8000K.

Citation Download Citation

Ming-Chin Chien and Chung-Hao Tien "Computational lighting by an LED-based system", Proc. SPIE 8486, Current Developments in Lens Design and Optical Engineering XIII, 84860R (11 October 2012); https://doi.org/10.1117/12.964664

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