Design and modeling of optical engine for LC rear projection display mA&RN"+V
Weng Zhi-Cheng, Zhang Zeng-Bao N,WI{*
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, ^/_\etV
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) gGtep*k
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ABSTRACT #2_o[/&}x@
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV NWo7wVwc/c
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of q`/amI0
the system, and it directly affects final performance, so the design of good color performance, high brightness and Ft3N#!ubl
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light tb-OKZq
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as Q3B'-B Ze
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design '_q: vjX
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS uznoyj6g
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end *k3 d^9o#
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Bg+<*z-?e
Keywords: optical engine, illumination system, projection display, LCoS
