| 摘要 |
The invention relates to a laser-beam working device (1) comprising at least one laser beam source (2), for acting on at least one workpiece (12, 25) with an annular laser focus (26). According to the invention, it is provided that means (29) for forming an image of the laser radiation (20) reflected by the workpiece (12, 25) are provided on a sensor unit (24). Furthermore, the invention relates to a method for adjusting the focal position of an annular laser focus (26) in relation to at least one workpiece (12, 25). |
