Design and modeling of optical engine for LC rear projection display L |pJ \~
Weng Zhi-Cheng, Zhang Zeng-Bao $" ` 9QD~
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, WC
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) J6m(\o
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ABSTRACT 8 C4 =f
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV ?&>H^}gDZ
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of HZ.Jc"+M
the system, and it directly affects final performance, so the design of good color performance, high brightness and Q{))+'s2h
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light ].,T Snb
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as y+D"LeCAad
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design `h+1u`FJ
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS Vo-]&u&cr
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end ; rJ
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 2`]_c=
Keywords: optical engine, illumination system, projection display, LCoS
