Device with an adaptive mirror for modifying the focus characteristics of a laser working machine

摘要

Device for altering the focal properties of a laser treatment machine comprises, downstream of the decoupling mirror of a laser (2), adaptive mirrors (4, 5) for diverting the laser beam (3) to a focussing lens (7), and a control unit (8) for adjusting the adaptive mirrors in response to the time-variant behavior of the laser beam.