Design and modeling of optical engine for LC rear projection display S}=d74(/n
Weng Zhi-Cheng, Zhang Zeng-Bao
D{h sa
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, ') pXQ
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022)
2[WH8l+
PoyY}Ra
ABSTRACT Z i-)PK^
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV OnO56,+S^
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 1mT3$Z
the system, and it directly affects final performance, so the design of good color performance, high brightness and #:ryw z+
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light w+ZeVZv!r
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as {J`Zl1_q
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design 0IHc yb
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS *ea%KE":
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end $[ zy|Y(
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). I!IWmU6FN
Keywords: optical engine, illumination system, projection display, LCoS
