Design and modeling of optical engine for LC rear projection display d~8U1}dP
Weng Zhi-Cheng, Zhang Zeng-Bao yu6~:$%H
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, C@Wzg
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) >n,_Aj
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ABSTRACT i$y=tJehi
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV {jD?obs
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of |V5BL<4
the system, and it directly affects final performance, so the design of good color performance, high brightness and -o+t&m
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light s{dm,|?Jl,
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as `p\%ha!,w
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design FJ84'T\~
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS A'w+Lc.2
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end \>S.nW
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Vu(NP\Wm
Keywords: optical engine, illumination system, projection display, LCoS