| 摘要 |
A laser optical device comprising a beam shaping optical system (3) for shaping a laser beam (2) to a specified sectional intensity distribution and condensing it, and an imaging optical system (6) for imaging a shaped beam (4) shaped and condensed by the beam shaping optical system (3), wherein the imaging optical system (6) comprises an object lens system (8) disposed ahead of the focal plane (7) of the beam shaping optical system (3) and having a negative focal distance, and an imaging lens system (9) disposed behind the object lens system (8). |
