Design and modeling of optical engine for LC rear projection display $H 9x M
Weng Zhi-Cheng, Zhang Zeng-Bao l%:_#1?isf
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, }l2JXf55
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) BdYh:
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ABSTRACT D *tBbV
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV c*W$wr
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 1hN!
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the system, and it directly affects final performance, so the design of good color performance, high brightness and z(=:J_N
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light > w'6ZDA*X
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as "N;|~S)w!
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design {F4:
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS S& 0x:VW
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end g?`J ,*y
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 7 D^ A:f
Keywords: optical engine, illumination system, projection display, LCoS
