Design and modeling of optical engine for LC rear projection display Y~ ,[9:SR
Weng Zhi-Cheng, Zhang Zeng-Bao |*Z'WUv
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics,
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Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) &+J5GHt@
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ABSTRACT Ipb 4{A&"\
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV *O$kF.3q
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of >M[rOu
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the system, and it directly affects final performance, so the design of good color performance, high brightness and "sUe:F;
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light h} g _;k5R
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as ?F(t`0=
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design dG Qy=T:
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 4T G g`$e;
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end V. 1sb
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evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). wAVO%8u
Keywords: optical engine, illumination system, projection display, LCoS
