Light source device
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United States of America Patent
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Oct 16, 2012
Grant Date -
Apr 14, 2011
app pub date -
Oct 13, 2010
filing date -
Oct 13, 2009
priority date (Note) -
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Abstract
In a light source device provided with a light emission tube in which a light emitting element is enclosed and at least one laser oscillator part for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means, or the light emission tube has a focusing means at the inner surface thereof.
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