LASER PROCESSING MACHINE WITH AN OPTICAL DIAPHRAGM
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United States of America Patent
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app pub date -
Mar 3, 2008
filing date -
Sep 3, 2005
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Abstract
A laser processing machine includes focusing optics that intermediately focus the laser beam inside a beam guiding cavity. The laser processing machine also includes an optical diaphragm disposed in the area of the intermediate focus for forming the laser beam, the diaphragm aperture diameter being about 1.2 to about 2.5 times larger than the 99% beam diameter of the intermediately focused laser beam.
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