Design and modeling of optical engine for LC rear projection display kRIB<@{
Weng Zhi-Cheng, Zhang Zeng-Bao -.v DF?@G
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, zX c}W*ymj
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) hhR aJ
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ABSTRACT g{pQ4jKF
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV r>qA $zD^
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of nJ3vi}`
the system, and it directly affects final performance, so the design of good color performance, high brightness and J+<p+(^*v
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light !}&" W,,0
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as V"d=.Hb>
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design E*v]:kok
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS >mIg@knE
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end /3^P_\,>f
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Nh)[r x
Keywords: optical engine, illumination system, projection display, LCoS
