Projector

Details Projector Projector

2008-04-08

2008-04-08

Blackman, Rochelle (Department: 2862)

Optics: image projectors

Particular condenser

C353S020000, C353S031000, C353S034000, C353S038000, C353S082000, C353S084000, C353S099000, C348S750000, C348S757000, C348S758000, C349S009000, C359S490020, C359S490020, C359S623000, C359S634000, C359S639000

Reexamination Certificate

active

07354162

ABSTRACT:
A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination light coming from the light source device into a plurality of partial light fluxes; a second lens array having a plurality of second small lenses corresponding to the first small lenses; a superposing optical system that superposes the partial light fluxes coming from the second lens array on regions to be illuminated; a color-separating and guiding optical system that separates the lights coming from the second lens array into lights in a plurality of different colors and guides the separated lights to the regions to be illuminated; a plurality of electro-optical modulation devices each of which modulates the light in the corresponding color of the lights in the plural colors separated by the color-separating and guiding optical system in accordance with image information; a color synthesizing optical system that synthesizes the lights in the respective colors modulated by the plural electro-optical modulation devices; and a projecting optical system that projects image light produced by the color synthesizing optical system. The superposing optical system has a first superposing lens disposed between the second lens array and the color-separating and guiding optical system and a second superposing lens having a convex lens included in the color-separating and guiding optical system.

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patent: A 1480765 (2004-03-01), None
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patent: A 2001-337204 (2001-12-01), None
patent: A 2002-55208 (2002-02-01), None

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