Design and modeling of optical engine for LC rear projection display `'I{U5;e
Weng Zhi-Cheng, Zhang Zeng-Bao 69m
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The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 7ZxaPkIu&%
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) bWWXc[O2&(
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ABSTRACT 1x)ZB~L
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV K+*Q@R D
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of O`G/=/ GZ
the system, and it directly affects final performance, so the design of good color performance, high brightness and KLoE&ds
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light j.e0;!
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weight design makes it more competitive. LightTools software has a great many of powerful functions, such as k o;>#::
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design wh6yPVVF/
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS (*p , T
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end {-3L IO
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 'e) ^m}:?D
Keywords: optical engine, illumination system, projection display, LCoS
