Design and modeling of optical engine for LC rear projection display i:N^:%
Weng Zhi-Cheng, Zhang Zeng-Bao i(cb&;Xx:A
The State Key Lab. of Applied Optics, ChangChun Institute of optics, fine mechanics and physics, A ** M"T
Chinese Academy of Sciences, P.O.Box: 1024 ChangChun P.R. china (130022) =K< I)2
y2hFUq
ABSTRACT %JH_Nw.P
Based on analyzing the LC rear projective TV system, The OE (optical engine) for three penal LCoS rear projection TV 2BU)qv-
system has been designed and modeled, The OE (optical engine) of LC rear projection display is the main component of x%?*]*W
the system, and it directly affects final performance, so the design of good color performance, high brightness and M$hw(fC|m1
contrast and high optical efficient is the key of the system. From a commercial viewpoint, a compact size and light v]Q _
weight design makes it more competitive. LightTools software has a great many of powerful functions, such as lp%.n= '\
modeling of optical system, analysis of illumination, modeling of machine structure, analysis of polarization and design ii] =C(e9
of optical coating. We have used LightTools to analyses and optimize a whole optical engine of three penal LCoS `]I5WTt*X
projection display including illumination system, dividing and recombining of colors system, projection lens. At the end O.8m%ZjD
evaluated the performances of optical engine (parameters of output, uniformity, contract, resolution and so on). 8&[<pbN)
Keywords: optical engine, illumination system, projection display, LCoS
