Design and modeling of optical engine for LC rear projection display 2"K~:Tm#w
Weng Zhi-Cheng, Zhang Zeng-Bao }pZnWK+
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, rca"q[,
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) ^ [NmNi*
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ABSTRACT TKydOw@P"
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV o;P ;=<
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of ng6p# F,3
the system, and it directly affects final performance, so the design of good color performance, high brightness and Y##P9^zH1
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light -Af`AX
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as XD>@EYN<X
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ^/YAokj
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS MX_a]$\ :n
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end qk"=nAJX
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). gV>\lMc[-%
Keywords: optical engine, illumination system, projection display, LCoS
