Design and modeling of optical engine for LC rear projection display b<r* EY
Weng Zhi-Cheng, Zhang Zeng-Bao M?gZKdj
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, ZS3T1
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) e pt:<!4
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ABSTRACT %0815
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Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV ]=|iO~WN
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of `"~ X1 ;
the system, and it directly affects final performance, so the design of good color performance, high brightness and `yhc,5M
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light f~jd N~
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as v+C D{Tc
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ,pZz`B#
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS >9g^-~X;v
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end 4Im}!q5;:<
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). E}36
Keywords: optical engine, illumination system, projection display, LCoS
