Design and modeling of optical engine for LC rear projection display 4B%5-VQ
Weng Zhi-Cheng, Zhang Zeng-Bao cPa 0n4
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, "fX8xZdS
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) -+Awm{X_@
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ABSTRACT co(fGp#!
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV xw/h~:NT
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of O=9 V X
the system, and it directly affects final performance, so the design of good color performance, high brightness and B_6v'=7]
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light Mf,Mcvs
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as M2;(+8 b
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design zrWq!F*-V\
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS *=KexOa9
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end p'9
V. _h
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). A,A-5l<h]?
Keywords: optical engine, illumination system, projection display, LCoS
