DEVICE AND METHOD FOR REDUCING ETENDUE IN A DIODE LASER
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United States of America Patent
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Issued Date -
Jul 2, 2009
app pub date -
Sep 8, 2008
filing date -
Sep 7, 2007
priority date (Note) -
Abandoned
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Abstract
An optical assembly for reducing the etendue of a diode laser light source having a plurality of laser light emitters. The optical assembly comprises a first optical device for collimating beams of light emitted from the emitters of the diode laser. A second optical device spatially shifts a portion of the collimated light beams emitted from the diode laser to thereby reduce gaps or dark space between the beams. A third optical device focuses all of the light beams onto a surface, such as a surface of a light modulation surface.
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