Design and modeling of optical engine for LC rear projection display
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Weng Zhi-Cheng, Zhang Zeng-Bao F'|K>!H
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, -Kg.w*\H7/
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) w)ki<Dudg
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ABSTRACT +ZbNSN=
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV sg=G<50i
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of "*HM8\
the system, and it directly affects final performance, so the design of good color performance, high brightness and [;{xiW4V]
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light ^oav-R&
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as 'yVe&5?
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design yf&_l^!
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS eGT&&Y
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end 3UXZ|!-
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 3Iqvc v
Keywords: optical engine, illumination system, projection display, LCoS