Design and modeling of optical engine for LC rear projection display `'c_=<&n
Weng Zhi-Cheng, Zhang Zeng-Bao j!4et;
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, T[uiPs /xD
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) }i`PGx
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ABSTRACT r77PQQD T
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV "D'B3; uWK
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of W4e5Rb4~f"
the system, and it directly affects final performance, so the design of good color performance, high brightness and 2
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contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light te
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weight design makes it more competitive. LightTools software has a great many of powerful functions, such as I1\a[ Xe8E
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design !{ )tSipd
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 8J~1-;
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end H5]^
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evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). dBe `p5Z
Keywords: optical engine, illumination system, projection display, LCoS
