Design and modeling of optical engine for LC rear projection display hi4#8W
Weng Zhi-Cheng, Zhang Zeng-Bao (4=NKtA^G
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, |LA@ guN
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) L;$Gn"7~
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ABSTRACT T {Q]
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV 3* C9 ;Q}
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of c+$a lw L~
the system, and it directly affects final performance, so the design of good color performance, high brightness and I t>8XKS
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light 0m k-o
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as ovJwo r
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design 0V6gNEAUg
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS N
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projection display including illumination system, dividing and recombining of colors system, projection lens. At the end l?GN& u
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). .vHSKd{
Keywords: optical engine, illumination system, projection display, LCoS
