Design and modeling of optical engine for LC rear projection display gwbV$[.X
Weng Zhi-Cheng, Zhang Zeng-Bao J7HY(7Nx
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 7Vu f4Z5
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) Q <ulh s
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ABSTRACT <}G/x*N
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV &W3 Hj$>
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of "m`}J*s"
the system, and it directly affects final performance, so the design of good color performance, high brightness and &Im-@rV!
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light %2\6.c =c
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as :j? MEeu
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ,H_d# Koa.
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS \,#;gS "
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end B`YD>oCN
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). ,/&|:PkS
Keywords: optical engine, illumination system, projection display, LCoS
