Design and modeling of optical engine for LC rear projection display ~O&3OL:L
Weng Zhi-Cheng, Zhang Zeng-Bao u 0Irf"Ab
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, XF'K dz>p
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) n:x6bPal]
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ABSTRACT ;y
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Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV /5EM;Mx
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 9!}&&]Q`
the system, and it directly affects final performance, so the design of good color performance, high brightness and V1,O7m+F2
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light g;D
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weight design makes it more competitive. LightTools software has a great many of powerful functions, such as h1q ?kA
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design c"H*9u:
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS +'x|VPY.PG
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end k[&+Iy
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). ok iI:
Keywords: optical engine, illumination system, projection display, LCoS
