Illumination system for dual-lamp projector

Details Illumination system for dual-lamp projector Illumination system for dual-lamp projector

2011-01-18

2011-01-18

Luu, Thanh X (Department: 2878)

Optics: image projectors

Color filter

C353S031000, C348S473000

Reexamination Certificate

active

07871168

ABSTRACT:
An illumination system includes a first light source, a second light source, a light-uniforming component and a color wheel. The first light source is disposed at a side of the color wheel and provides a first light beam, and the second light source is disposed at another side of the color wheel and provides a second light beam. The light-uniforming component has a light incidence end and a light emitting end opposite to the light incidence end, and the first light source and the second light source are disposed beside the light incidence end. The color wheel includes a plurality of filter units with different colors, each includes a transmissive portion and a reflective portion for respectively making a part of the first light beam pass through to reach the light incidence end, and reflecting a part of the second light beam to reach the light incidence end.

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