Design and modeling of optical engine for LC rear projection display !8OUH6{2
Weng Zhi-Cheng, Zhang Zeng-Bao REKv&^ FLN
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, aZYs?b>Gm
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) sqk$q pV6
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ABSTRACT h%(0|
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV jxA*Gg3cT5
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of gX *i" Y#
the system, and it directly affects final performance, so the design of good color performance, high brightness and ; p2a .P
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light \d"M& -O
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as p +|(lrYC
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ryoD 1OE
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 9N{"ob
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projection display including illumination system, dividing and recombining of colors system, projection lens. At the end 9/R< ,
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 7%Ii:5Bp
Keywords: optical engine, illumination system, projection display, LCoS
