Patent ID: 8404999

Claim:
A laser processing apparatus, comprising: a holding table for holding a workpiece having a plurality of work lines; laser applying means for applying a laser beam to the workpiece held on the holding table; and indexing means for relatively moving the holding table and the laser applying means in an indexing direction; said laser applying means including first laser oscillating means, second laser oscillating means, first laser branching means for branching a laser beam oscillated from the first laser oscillating means into a plurality of optical paths, second laser branching means for branching a laser beam oscillated from the second laser oscillating means into a plurality of optical paths, a plurality of first focusing lenses for respectively focusing the laser beams through the plurality of optical paths obtained by the first laser branching means toward the workpiece, and a plurality of second focusing lenses for respectively focusing the laser beams through the plurality of optical paths obtained by the second laser branching means toward the workpiece, the first focusing lenses and the second focusing lenses being alternately arranged in the indexing direction above the holding table, wherein each of the plurality of optical paths is simultaneously focused towards one of the plurality of work lines.