High collecting efficiency of an LED projection system

Shuang-Chao Chung; C. C. Lin; H. H. Lo; C. X. Tseng

doi:10.1117/12.714091

6 February 2007 High collecting efficiency of an LED projection system

Shuang-Chao Chung, C. C. Lin, H. H. Lo, C. X. Tseng

Proceedings Volume 6489, Projection Displays XII; 648907 (2007) https://doi.org/10.1117/12.714091
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

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%.

Citation Download Citation

Shuang-Chao Chung, C. C. Lin, H. H. Lo, and C. X. Tseng "High collecting efficiency of an LED projection system", Proc. SPIE 6489, Projection Displays XII, 648907 (6 February 2007); https://doi.org/10.1117/12.714091

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