Laseraufzeichnungsgerät

摘要

PCT No. PCT/GB91/01264 Sec. 371 Date Jul. 1, 1994 Sec. 102(e) Date Jul. 1, 1994 PCT Filed Jul. 26, 1991 PCT Pub. No. WO93/03456 PCT Pub. Date Feb. 18, 1993The disclosure relates to a laser marking system, using a displaceable mirror to cause the path of the laser beam to scan in one direction. The mirror is conveniently controlled by at least one flexure hinge driven by a piezo electric device, an electro-strictive device or a magneto-strictive device. In one disclosed embodiment two mirrors (15,16,) are provided, each mirror (15 or 16,) having a flexure hinge device (18,19) individual thereto, and the displacements applied to the flexure hinge devices (18,19,), via respective driving devices (20,21,), cause the mirrors (15,16,) to scan the path of the laser beam (13) in a series of steps in one direction of scan. A computer (11), arranged to drive the flexure hinge driving devices (20,21,), also controls the firing of the laser (12) in accordance with a predetermined program.