VERFAHREN UND VORRICHTUNG ZUR MATERIALBEARBEITUNG MIT HILFE EINES LASERS

摘要

In a process and a device for material machining using a laser, the laser light is directed onto the material via a laser optical system, and the light re-emitted, diffused or reflected by the material is passed via the laser optical system to a detector arrangement, to the outlet side of which an analysing circuit is connected for controlling the laser. The function variation with time of the light falling on the detector arrangement is analysed and used for controlling the laser and/or an optical switch arranged in the path of the output beam of the laser. ……