Design and modeling of optical engine for LC rear projection display bA9d be
Weng Zhi-Cheng, Zhang Zeng-Bao ne~# { q
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, >a]
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) ! Q/O[6
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ABSTRACT JC?V].) y5
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV
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system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of _"e(
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the system, and it directly affects final performance, so the design of good color performance, high brightness and K0!#l Br
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light ` ];[T=
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as Cr\/<zy1-e
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design I)4|?tb ?
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS "%iR-s_>
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end
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evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). o+23?A~+
Keywords: optical engine, illumination system, projection display, LCoS
