Design and modeling of optical engine for LC rear projection display yER(6V'\iQ
Weng Zhi-Cheng, Zhang Zeng-Bao {.`vs ;U
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, rD tY[
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) c&6 I[ R
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ABSTRACT ^+ml5m
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV 0^ _uV9r
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of ! 6 #X>S14
the system, and it directly affects final performance, so the design of good color performance, high brightness and . P viA
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light _IMW {
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as + S zU
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design |* Yr< zt
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 6dQ-HI*Y#
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end 7jrt7[{
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). P.se'z)E
Keywords: optical engine, illumination system, projection display, LCoS
