Design and modeling of optical engine for LC rear projection display o2R&s@%0@B
Weng Zhi-Cheng, Zhang Zeng-Bao |Ng}ZLBM
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, L "5;<
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) ,b9!\OWDF
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ABSTRACT (d*~Qpi{7
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV 7bY N
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of O&evv8 6L
the system, and it directly affects final performance, so the design of good color performance, high brightness and vVf%wei^#
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light
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weight design makes it more competitive. LightTools software has a great many of powerful functions, such as ,pIaYU{D
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design e/R$Sfj]
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS /3j3'~0
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end )-^[;:B\k"
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). z 8<"
Keywords: optical engine, illumination system, projection display, LCoS
