Design and modeling of optical engine for LC rear projection display \e?.h m q
Weng Zhi-Cheng, Zhang Zeng-Bao f !5F]qP>-
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, HA $Y1}
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) +VSZhg,Np8
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ABSTRACT CdX`PQ
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV :&Qb>PH[
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of |n+ #1_t%
the system, and it directly affects final performance, so the design of good color performance, high brightness and ^g9}f
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light fph -v -cl
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as .W!tveX8-
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design pU
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of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS &(g m4bTg
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end ,+~2&>wj
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 0;}Aj8Fle
Keywords: optical engine, illumination system, projection display, LCoS
