| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a laser beam spot adjustment so that a working spot is not changed when changing a laser beam shape depending on a working condition in a laser beam working device using an optical fiber. SOLUTION: An adapter 3, into which an optical fiber for adjustment having a different core diameter (d) is incorporated, is selectively mounted to an end of a laser beam emitting optical fiber leading a laser beam from a laser beam source, by condensing the laser beam emitted through the adapter with the same condensing optical system 2, even if a laser beam spot diameter is changed based on a core diameter (d), an optical arrangement is not changed.</p> |
