Patent ID: 6501781
Filing Date: 2002-12-31
Classification: H01S

Abstract:
An arrangement for focussing a combined laser beam (33) on a common spot on a plane surface (32,22), said combined laser beam (33) comprising individual laser beams produced by a plurality of laser diodes (2), wherein said arrangement comprisesa common supporting substrate (1) on which said laser diodes (2) are mounted; means (7,8) for providing a bend in a beam path of each of said individual laser beams; at least one cylindrical lens (9) mounted on said common supporting substrate (1) and arranged between each of said laser diodes (2) and said bend in said beam path; a respective focusing lens (14) provided in said beam path of each of said individual laser beams and mounted on said common supporting substrate (1) between said bend in said beam path and said common spot so that said respective focusing lens (14) is laterally movable in order to adjust said individual laser beams one after the other; whereby said individual laser beams converge to said common spot on said plane surface and said combined laser beam (33) is focussed on said common spot.