Design and modeling of optical engine for LC rear projection display q&:=<+2"
Weng Zhi-Cheng, Zhang Zeng-Bao ,^icPQSwc
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 86
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) {}:ToIp
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ABSTRACT H Ymn:?H
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV :k fp_o+J
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of [
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the system, and it directly affects final performance, so the design of good color performance, high brightness and ?ve#} \
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light KD^N)&k^Kp
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as 1yqJwy;X
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design O#Wh
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of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS &>H!}"Yk
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end <]G]W/eB'
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). aM4k *|H?
Keywords: optical engine, illumination system, projection display, LCoS
