Design and modeling of optical engine for LC rear projection display 8_!qoW@B
Weng Zhi-Cheng, Zhang Zeng-Bao T+Re1sPr?
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, w3,KqF
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) P_3IFHe
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ABSTRACT k*;U ?C!
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV ;>Z+b#C[
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 8(4!x$,Z5
the system, and it directly affects final performance, so the design of good color performance, high brightness and n R, QG8
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light NW6;7nWb
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as (E0WZ $f}
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design h>!h |Ma
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS :;Z/$M16B
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end esTL3 l{[
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). Ne+Rs+~4
Keywords: optical engine, illumination system, projection display, LCoS
