Device for observing a zone of interaction between a laser beam and material, and laser-beam treatment device and method using this observation device

摘要

The invention relates to a device for observing a zone of interaction between a laser beam and material, including a mirror whose reflective surface is inclined with respect to the axis of a laser beam in order to reflect the image of the zone to be observed. The mirror (1) includes an opening (5) to allow the laser beam (4) to pass. <IMAGE>