Design and modeling of optical engine for LC rear projection display 9MR,3/&N
Weng Zhi-Cheng, Zhang Zeng-Bao K-,8~8[
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, MNV Olo A
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) g4NbzU[I
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ABSTRACT KQ2jeJ/pj
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV qJq2Z.>hy
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of Bv(c`JE~;
the system, and it directly affects final performance, so the design of good color performance, high brightness and 5$Da\?Fpn
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light e sDd>W
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as #b5V/) K
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design 6ujePi <U
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS i2Cw#x0s
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end `&!J6)OJ
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). :y8wv|m
Keywords: optical engine, illumination system, projection display, LCoS
