Patent ID: 8351317

Claim:
A laser irradiation apparatus, comprising: a laser oscillator configured to oscillate a laser beam at intervals; and an optical system disposed in front of the laser oscillator, and configured to modify the laser beam and irradiate the modified beam to a subject, wherein the optical system includes a beam splitter configured to split the laser beam to a plurality of split laser beams and a luminous flux adjuster configured to adjust the flux of the individual split laser beams, so as to sequentially emit each of the split laser beams at intervals from the luminous flux adjuster, wherein the intervals of the laser beam from the laser oscillator are the same as the intervals of the split laser beam from the luminous flux adjuster, and wherein the optical system further comprises a condensing lens disposed in front of the luminous flux adjuster, configured to condense the split laser beams and emit them as one laser beam.