Color video projection system employing reflective liquid...

Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell

Reexamination Certificate

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C353S031000

Reexamination Certificate

active

07375772

ABSTRACT:
A system including a light source, a polarizing beam splitter, and first, second and third light valves is provided. The light source produces light in first, second and third wavebands in a second polarization direction. The beam splitter transmits the first waveband of light in a first polarization direction and the second and third wavebands of light in the second polarization direction. The first, second and third light valves reflect at least a portion of the respective first, second and third wavelength bands of light generally toward a projection lens.

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Bone et al. “Novel Optical System Design for Reflective CMOS Technology”, SPIE Conference on Projection Displays V, Jan. 1999, vol. 3634, pp. 80-86.

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