標題: Multispectral mixing scheme for smart LED-based lighting system
作者: Chiang, Song-Bor
Chien, Ming-Chin
Tien, Chung-Hao
光電工程學系
Department of Photonics
關鍵字: Cluster;LEDs mixing optimization;lens design;color rendering;luminous efficiency;CQS;merit function;chromaticity point
公開日期: 2012
摘要: 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 degrees C similar to 100 degrees C) with high color quality scale (CQS > 85 points) and the possibly highest luminous efficiency.
URI: http://hdl.handle.net/11536/15418
http://dx.doi.org/10.1117/12.907834
ISBN: 978-0-81948-921-0
ISSN: 0277-786X
DOI: 10.1117/12.907834
期刊: LIGHT-EMITTING DIODES: MATERIALS, DEVICES, AND APPLICATIONS FOR SOLID STATE LIGHTING XVI
Volume: 8278
Appears in Collections:Conferences Paper


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