Design and modeling of optical engine for LC rear projection display {"c`k4R
Weng Zhi-Cheng, Zhang Zeng-Bao Z rv:uEl
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, spT$}F2n
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) V5' (op /
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ABSTRACT M $f6. j
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV {5]c \_.
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of "x3x$JQZy
the system, and it directly affects final performance, so the design of good color performance, high brightness and Q^bYx (r5w
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light -2'1KAk-W
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as 0< 93i
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design {kr BAz&
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS +o?;7
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end X0Wx\x Dg[
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Zc'^iDAY
Keywords: optical engine, illumination system, projection display, LCoS
