Laser Processor and Laser Processing Method
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United States of America Patent
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app pub date -
Oct 8, 2015
filing date -
Apr 17, 2013
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Abandoned
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Abstract
A laser processing machine includes a first focal point change amount calculating unit for calculating the time difference between an irradiation period during which a laser beam is irradiated from a laser processing head and a down time, or calculating the amount of change in focal point position from a detected temperature of an optical system in its entirety. A second focal point change amount unit calculates the amount of change in focal point position relative to a temperature change of a protective glass. A focal point position correcting unit causes a processing machine main body control device to correct the focal point position with the use of the sum of the change amounts of focal point position calculated by the first and second focal point change amount calculating units.
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