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2007-11-27 18:30 |
Design and modeling of optical engine for LC rear projection display
Design and modeling of optical engine for LC rear projection display d7Vp^^}(
Weng Zhi-Cheng, Zhang Zeng-Bao .u>[m .
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics,
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) m^!:n$
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ABSTRACT / cb `%"Z
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV tPl 4'tW_
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of vo f8bQ{&
the system, and it directly affects final performance, so the design of good color performance, high brightness and U|] cB
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light T:u>7?8o
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as ]Cj@",/3#
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design o`QNZN7/}
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS s> m2qSu
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end Ly&+m+Gwu
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). k V+^1@"
Keywords: optical engine, illumination system, projection display, LCoS
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