Laser Processing Device
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United States of America Patent
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Issued Date -
Jul 19, 2012
app pub date -
Dec 28, 2011
filing date -
Jan 19, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a laser processing device for preventing damage of the camera by return light of the laser light. A laser processing device includes a laser oscillator; a camera; a polarized beam splitter for transmitting the laser light while making a light receiving axis of the camera substantially coincide with an emission axis of the laser light; an illumination light source for generating illumination light having a wavelength substantially the same as the laser light as illumination light for illuminating the workpiece; a half mirror for making the emission axis of the illumination light substantially coincide with the emission axis of the laser light; a control unit; and a shutter for blocking the return light from the workpiece based on an output control signal of the laser light, the shutter arranged on the camera side than the polarized beam splitter in a light receiving path of the camera.
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