Design and modeling of optical engine for LC rear projection display daWmF
Weng Zhi-Cheng, Zhang Zeng-Bao Xx:0Nt]
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, W 0tBF&E"
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) (sS[F-2R7
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ABSTRACT lk \|EG
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV -}{\C]%
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 9V?MJZ@aG
the system, and it directly affects final performance, so the design of good color performance, high brightness and si=/=h
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light lcJ`OLG
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as hOfd<k\A
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ;&W N%L*
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS (loUO;S=
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end qw%4j9}
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Lr)h>j6\
Keywords: optical engine, illumination system, projection display, LCoS
