LIGHT IRRADIATING APPARATUS AND WELDING METHOD
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United States of America Patent
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app pub date -
Jan 11, 2008
filing date -
Jul 13, 2005
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Abandoned
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Abstract
A light source unit includes an emission surface and a plurality of point light sources arranged on the emission surface. An optical system focuses a plurality of light beams emitted from the point light sources into a single light beam and irradiates a target object to be irradiated with the single light beam. The single light beam is obtained with a desired light intensity profile according to a combination of positions where the point light sources are arranged and intensity distributions of the light beams emitted from the point light sources.
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