Design and modeling of optical engine for LC rear projection display |/g W _;(
Weng Zhi-Cheng, Zhang Zeng-Bao hlu:=<B
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 2<& Bw2
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) < B_Vc:Q
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ABSTRACT #`GY}-hL!
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV 2&+#Vsm`V
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of V ` a dWXu
the system, and it directly affects final performance, so the design of good color performance, high brightness and $^&ig
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light yCJ Fo
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as as=m`DqOh
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design t9&c E:n
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS zkTp `>9R
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end #j@71]GI
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). /h v4x9
Keywords: optical engine, illumination system, projection display, LCoS
