@inproceedings{cb03ec767b694ae28e15a6b0752d6e14,
title = "Multispectral mixing scheme for smart LED-based lighting system",
abstract = "LED cluster is probably the most relevant among the emerging solid-state lighting techniques. Impressive scenarios of a wide range of color quality and luminous efficiency have been obtained, mostly at the condition of constant ambient temperature. This paper removes the constraint in ambient temperature. We present a methodology analogous to a general lens design rule to optimize step-by-step the spectral power distribution of a white-light LED cluster. The scheme enables the users to determine the optimal operation to meet requirements such as light efficiency, color quality, or other figures of merit over a wide range of color temperatures. All main factors influencing the spectral power distribution (SPD) are discussed, alongside the implementation of a pentachromatic R/G/B/A/CW platform suitable for clinic use. The result shows the multispectral cluster can be modulated within the color temperature from 2800K to 8000K in the range ambient temperature (10°C ∼ 100°C) with high color quality scale (CQS > 85 points) and the possibly highest luminous efficiency.",
keywords = "chromaticity point, Cluster, color rendering, CQS, LEDs mixing optimization, lens design, luminous efficiency, merit function",
author = "Chiang, {Song Bor} and Chien, {Ming Chin} and Chung-Hao Tien",
year = "2012",
month = mar,
day = "5",
doi = "10.1117/12.907834",
language = "English",
isbn = "9780819489210",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Light-Emitting Diodes",
note = "Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI ; Conference date: 24-01-2012 Through 26-01-2012",
}