The invention relates to a
laser processing device with a
linear array optical lens
assembly with micro cylindrical lenses in cylindrical distribution, and belongs to the technical field of
laser processing. A conventional
laser direct writing micro-nano
processing method is low in processing efficiency. The
laser processing device disclosed by the invention is characterized in that a
laser source, a collimating beam expanding mirror, a
beam shaping mirror, a biconcave lens, and the
linear array optical lens
assembly with micro cylindrical lenses in cylindrical distribution are sequentially, optically and coaxially arrayed; the
beam shaping mirror is used for shaping
laser beams with round light spots and
light energy in
gaussian distribution into
laser beams with square light spots and
light energy in uniform distribution; the
linear array optical lens
assembly with micro cylindrical lenses in cylindrical distribution adopts the structure that a plurality of micro cylindrical lenses are arrayed on a convex cylindrical mirror surface of a plano-convex cylindrical mirror and parallel to a cylindrical
generatrix, besides, the diameters of the micro cylindrical lenses are gradually increased from the micro
cylindrical lens positioned at the highest point of the convex cylindrical mirror surface to the micro
cylindrical lens positioned at the lowest point of the convex cylindrical mirror surface, and symmetrical surfaces of a bar-shaped wedge-shape laser beam emitted from each micro
cylindrical lens are mutually parallel; the
plane mirror of the plano-convex cylindrical mirror faces towards the biconcave lens.