Design and modeling of optical engine for LC rear projection display RP2$( %
Weng Zhi-Cheng, Zhang Zeng-Bao m u9,vH
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, >aJmRA-C}
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) zmQQ/ 7K
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ABSTRACT }m<+tn3m
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV cy@oAoBq
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of fa]8v6
the system, and it directly affects final performance, so the design of good color performance, high brightness and .*N,x(V
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light <,DMD
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as \'=svJ
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design =A5i84y.2u
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS r4u ,I<ZbH
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end .~I:Hcf/
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). ;L:UYhDbUx
Keywords: optical engine, illumination system, projection display, LCoS
