Design and modeling of optical engine for LC rear projection display H@%Y!z@\
Weng Zhi-Cheng, Zhang Zeng-Bao ]v96Q /a
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, 1L.H "
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) F<y $Q0Z}
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ABSTRACT PK^{WF}L;
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV Ftu~ nh}
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of KZ^W@*`D
the system, and it directly affects final performance, so the design of good color performance, high brightness and WF#eqU*&
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light 8;>vgD
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as 2lPj%i 5
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design `h+ia/
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS Z!o&};_j
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end Xi3:Ok6FZ
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). -Gjz;/s%XH
Keywords: optical engine, illumination system, projection display, LCoS
