Design and modeling of optical engine for LC rear projection display @wO X</_g
Weng Zhi-Cheng, Zhang Zeng-Bao :/FT>UCL
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, SHP_
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) tD\%SiTg=b
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ABSTRACT 8zk?:?8%{
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV %v 1NDhaXz
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of ,.&y-?
the system, and it directly affects final performance, so the design of good color performance, high brightness and :sXn*k4v
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light 3+2cD
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as R3gg{hQ
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design h;2n2.Q
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS KcNh3CR
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end 1<d|@9?9`
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). SFx|9$hXm
Keywords: optical engine, illumination system, projection display, LCoS