Projector optics and projector with light source of LEDs

Details Projector optics and projector with light source of LEDs Projector optics and projector with light source of LEDs

2006-09-05

2006-09-05

Dowling, William C. (Department: 2851)

Optics: image projectors

Prism in light path

C353S094000, C353S020000, C362S227000, C362S231000, C362S234000, C359S634000

Reexamination Certificate

active

07101049

ABSTRACT:
The invention is directed to downsized projector optics and projector both of which employ an LED light source attaining the enhanced efficiency of the quantity of the emitted light. The projector optics and the projector respectively include, in position, a polygon-based conical polyhedron prism of which reflection surfaces are opposed to the LED light source; a light tunnel, a PS converting element, a polarized beam splitter and a LCOS all of which are provided in the optical axis of the reflected light from the polygon-based conical polyhedron prism; and a projection lens placed in the optical axis of the transmitted light from the polarized beam splitter.

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patent: 2002244211 (2002-08-01), None

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