Trichroic prism assembly for separating and recombining colors in a compact projection display.
A trichroic prism assembly design, believed to be new, is proposed and demonstrated. This new design has the advantages of low s- and p-polarization dependence in the reflectance spectra of the optical coatings. Hence it can be used for both color separation and color recombination with polarization change. This new trichroic prism assembly is especially useful in a compact color projector employing reflective liquid-crystal light valves.
Kwok
H S
HS
Center for Display Research, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China. eekwok@ust.hk
Cheng
P W
PW
Huang
H C
HC
Li
H F
HF
Zheng
Z R
ZR
Gu
P F
PF
Liu
X
X