Design and modeling of optical engine for LC rear projection display =*&[K^
Weng Zhi-Cheng, Zhang Zeng-Bao RWc<CQcL"
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, RN[I%^$"
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) ;I&VpAPx
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ABSTRACT tLBtE!J$[
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV <q8@a0e@
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 6$6QAW0+f
the system, and it directly affects final performance, so the design of good color performance, high brightness and 4);_f
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light 6|zhqb|s
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as 4b:|>Z-
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design )V\@N*L`ik
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 7
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projection display including illumination system, dividing and recombining of colors system, projection lens. At the end h:nyb Lw?
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 7 ~ PL8
Keywords: optical engine, illumination system, projection display, LCoS
