Design and modeling of optical engine for LC rear projection display ~X3x- nAt
Weng Zhi-Cheng, Zhang Zeng-Bao ;<_a ,5\Q
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, (\!?>T[En
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) E
AZX
[cco/=c
ABSTRACT v$w}UC%uf
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV iJZNSRQJ}r
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of 5-y*]:g(
the system, and it directly affects final performance, so the design of good color performance, high brightness and h(<>s#=E
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light ^9 ]iUx
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as =,h'}(z_
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design JgA{1@h
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS w%8y5v5
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end @0]WMI9B"B
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). d4*Sf zB
Keywords: optical engine, illumination system, projection display, LCoS
