| 摘要 |
The invention relates to a device, in particular a laser machining head (1), for focusing a laser beam (2) on a workpiece (3), comprising: at least one transmissive optical element (4), in particular a protective glass, which is arranged at a tilted angle (a) with respect to a plane (X, Y) perpendicular to the axis (5) of the laser beam (2), and a detector (6) for detecting laser radiation (8a, 8b) that is reflected back from the transmissive optical element (4). The invention also relates to an associated method for monitoring a laser machining process. |
