標題: Computational Lighting by a LED-based System
作者: Chien, Ming-Chin
Tien, Chung-Hao
光電工程學系
Department of Photonics
關鍵字: computational lighting;composite LEDs cluster;SPD synthesis
公開日期: 2012
摘要: 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 degrees C to 100 degrees 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.
URI: http://hdl.handle.net/11536/21587
http://dx.doi.org/10.1117/12.964664
ISBN: 978-0-8194-9203-6
ISSN: 0277-786X
DOI: 10.1117/12.964664
期刊: CURRENT DEVELOPMENTS IN LENS DESIGN AND OPTICAL ENGINEERING XIII
Volume: 8486
Appears in Collections:Conferences Paper


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