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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (12): 2021-2026    DOI: 10.1631/jzus.2007.A2021
Electrical & Electronic Engineering     
Illumination system with compound parabolic retro-reflector for single LCOS panel projection display
ZHEN Yan-kun, YE Zi, ZHANG Wen-zi, ZHAO Ting-yu, YU Fei-hong
State Key Lab. of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
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Abstract  In this paper, a new illumination system with ultra high performance (UHP) lamp is proposed for projection display. Parabolic reflector (PR) and compound parabolic retro-reflector (CPR) were jointly used to collect and collimate the light generated from UHP lamp. A polarization converter system (PCS) was used to increase the light efficiency of the projection display system. A beam transformer between PCS and 2f imaging systems was directly used to make the illumination meet the requirement of projection display system. With the consideration of the loss of reflection, the light efficiency in this projection display system was estimated to be 15.6%.

Key words： Compound parabolic retro-reflector (CPR)      Uniformity      Light efficiency      Etendue     
Received: 08 January 2007     
CLC:  O435.1  
  O439  
  TH741.5  
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ZHEN Yan-kun
YE Zi
ZHANG Wen-zi
ZHAO Ting-yu
YU Fei-hong
Cite this article:

ZHEN Yan-kun, YE Zi, ZHANG Wen-zi, ZHAO Ting-yu, YU Fei-hong. Illumination system with compound parabolic retro-reflector for single LCOS panel projection display. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(12): 2021-2026.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A2021     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I12/2021

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