Design and modeling of optical engine for LC rear projection display oAifM 1*0
Weng Zhi-Cheng, Zhang Zeng-Bao &bq1n _
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, [*u\ S
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) &~;M16XM,e
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ABSTRACT v6G1y[W l
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV |11vm#
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of Pm#/j;
the system, and it directly affects final performance, so the design of good color performance, high brightness and 1?w=v|b:P)
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light #*rJI3
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as Ae=JG8Ht~
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design dLGHbeZ[(
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS 'DXT7|Df
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end u`wD6&y*
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). D 5xQ
Keywords: optical engine, illumination system, projection display, LCoS
