Laser transfer machining apparatus

A laser transfer machining apparatus for machining an object to be machined by using a laser beam emitted by a laser source, comprising:

• a shaping means for modifying the laser beam to form a pattern, said pattern corresponding to a desired pattern to be machined in said object to be machined, said shaping means comprises an optical fiber, the output face of which is shaped like the beam pattern which corresponds to a desired pattern to be machined, for guiding the laser beam emitted by said laser light source;
• and
• a generating means disposed between said shaping means and said object to be machined for generating a plurality of laser beams each having said pattern formed on said laser beam by said shaping means, said generating means defining a plurality of radiation directions of the generated plural laser beams toward said object to be machined.

A laser transfer machining apparatus for machining an object to be machined by using a laser beam emitted by a laser source, comprising:

• a mask means in which a predetermined pattern is formed on the laser beam passing therethrough such that the laser beam has a beam pattern which corresponds to a desired pattern to be machined in said object to be machined;
• and
• a Fourier-transform hologram including a digital phase hologram having at least three phases for generating a plurality of laser beams each having said pattern formed on said laser beam passing through said mask means, said hologram defining a plurality of unsymmetric radiation directions of the generated plural laser beams toward said object to be machined.

A laser transfer machining apparatus for machining an object to be machined by using a laser beam emitted by a laser source, comprising:

• a mask means in which a predetermined pattern is formed on the laser beam passing therethrough such that the laser beam has a beam pattern which corresponds to a desired pattern to be machined in said object to be machined, said mask means comprises an optical fiber, the output face of which is shaped like the beam pattern which corresponds to a desired pattern to be machined, for guiding the laser beam emitted by said laser light source;
• and
• a Fourier-transform hologram for generating a plurality of laser beams each having said pattern formed on said laser beam passing through said mask means, said hologram defining a plurality of radiation directions of the generated plural laser beams toward said object to be machined.