Design and modeling of optical engine for LC rear projection display ET _}x7
Weng Zhi-Cheng, Zhang Zeng-Bao 43:~kCF[s
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 7"*-
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) &.<{c
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ABSTRACT G~4 ^`[elB
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV zK:/
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system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of v 1 oS f
the system, and it directly affects final performance, so the design of good color performance, high brightness and #) >>f
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light # JuO
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as LAf!y"A#
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design [ Q= ) f
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS <`| }bt
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end h{<^?=
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). wqE ]o=
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Keywords: optical engine, illumination system, projection display, LCoS
