Design and modeling of optical engine for LC rear projection display |D '4uN8\
Weng Zhi-Cheng, Zhang Zeng-Bao 6f;fx}y
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, S,D8F&bg
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) rI{=WPI&WU
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ABSTRACT d; [ C6d
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV %/EVUN9=
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of U T>s 5C
the system, and it directly affects final performance, so the design of good color performance, high brightness and "vA}FV%tRq
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light <Dpe voF
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as c~6>1w7SZ4
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design sPd Gw~{
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS >82@Q^O
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end K j V:|
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). .ELGWF`>
Keywords: optical engine, illumination system, projection display, LCoS
