Design and modeling of optical engine for LC rear projection display NU 3s^ 8\(
Weng Zhi-Cheng, Zhang Zeng-Bao a OmQ<N]a
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, A aM~B`B
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) oe=W}y_k
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ABSTRACT bZgFea_>i
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV r
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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~ QOl=`K:
the system, and it directly affects final performance, so the design of good color performance, high brightness and sQO>1bh
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light G;J!3A;TE
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as y# IUDnRJ
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design
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of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS ~W_ T3@
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end zy8D&7Ytf
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). r <$"T
Keywords: optical engine, illumination system, projection display, LCoS
