Laser machining method and laser machining apparatus
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United States of America Patent
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Apr 12, 2011
Issued Date -
N/A
app pub date -
Aug 22, 2007
filing date -
Aug 31, 2006
priority date (Note) -
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Abstract
A laser machining method and a laser machining apparatus by which holes excelling in form accuracy can be machined efficiently are to be provided. A first cylindrical lens and/or a second cylindrical lens to correct any deformation of reflective face of a first mirror and/or a second mirror is arranged on an optical axis of a laser beam, and converging positions of the laser beam for an X-component and for a Y-component are coincident with a point on the optical axis.
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