Design and modeling of optical engine for LC rear projection display ``z="oD
Weng Zhi-Cheng, Zhang Zeng-Bao -'VT
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, iLI]aZ
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) (Z5#;rgem
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ABSTRACT Qv=Z
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV vSL{WT]m
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of VsMN i#?
the system, and it directly affects final performance, so the design of good color performance, high brightness and ky%%H;
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light e/3hb)#;
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as hWu)0t
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design :)yM9^<D
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS lyeoSd1AN
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end K;ML'
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). +=8Po'E^!d
Keywords: optical engine, illumination system, projection display, LCoS