Design and modeling of optical engine for LC rear projection display _J#Hq 'K
Weng Zhi-Cheng, Zhang Zeng-Bao zL=I-f Vq
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, W;*vcbP
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) O?<_,-.
Hqy>!1!
ABSTRACT T</gWW
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV l`G:@}P>G
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of gM:oP.
the system, and it directly affects final performance, so the design of good color performance, high brightness and y3$\ m
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light
B#lj8I^|
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as =<tEc+!T3
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design Hw3E S
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS jWjK -q@Y
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end ziip*<a!_
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 8i~'~/x
Keywords: optical engine, illumination system, projection display, LCoS