BENDING LASER IRRADIATION APPARATUS AND LASER IRRADIATION METHOD

摘要

A laser irradiation apparatus and a laser irradiation method for bending a work by applying a laser beam. The laser irradiation apparatus includes a condenser optical unit (11) for condensing incident laser beam, a deformation optical unit (12) for deforming the condenser laser beam from the condenser optical unit (11) into a deformed laser beam having a slender elliptical cross section and applying the deformed laser beam to a work, and a control unit (20) for adjusting a relative position of the deformation optical unit (12) and the work (2), so that the direction of the major axis of the deformed laser beam cross section is matched with a reference line on the work.