Design and modeling of optical engine for LC rear projection display O)D+u@RhH
Weng Zhi-Cheng, Zhang Zeng-Bao
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The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 0}wmBSl
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) m/p:W/0L
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ABSTRACT c;doxNd6
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV r#\Lq;+ -B
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of _qjkiKm?1F
the system, and it directly affects final performance, so the design of good color performance, high brightness and Z ItS(o J.
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light 6I-Qq?L[H
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as =@s {H +
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design IP+. L]S
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS VskdC?yIp
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end f <LRM
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 8?G534*r@2
Keywords: optical engine, illumination system, projection display, LCoS
