Illumination system for dual-lamp projector
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United States of America Patent
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Jan 18, 2011
Grant Date -
Jan 29, 2009
app pub date -
Dec 6, 2007
filing date -
Jul 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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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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