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Proceedings Paper

High collecting efficiency of an LED projection system
Author(s): Shuang-Chao Chung; C. C. Lin; H. H. Lo; C. X. Tseng
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Paper Abstract

Due to Light Emitting Diode (LED) have the properties of compact size and high efficiency, there have more and more illumination system use it to be a lighting source. In this paper, a compact projection system was designed by a simple architecture. For this compact projection system, the prototype has been developed by using a single tranmissive light valve and LED source in it. With a simple collecting light reflector, a curved mirror and a light tunnel of the illumination system, the optical efficiency from the source to light valve is up to over 70% and the uniformity illuminated on the light valve is over 85%.

Paper Details

Date Published: 6 February 2007
PDF: 4 pages
Proc. SPIE 6489, Projection Displays XII, 648907 (6 February 2007); doi: 10.1117/12.714091
Show Author Affiliations
Shuang-Chao Chung, Industrial Technology Research Institute (Taiwan)
C. C. Lin, Industrial Technology Research Institute (Taiwan)
H. H. Lo, Industrial Technology Research Institute (Taiwan)
C. X. Tseng, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 6489:
Projection Displays XII
Ming H. Wu; Hoang Y. Lin, Editor(s)

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