| 摘要 |
<p>An apparatus that can change an irradiating direction of the beam (100) and a method of recognizing an irradiation-enabled area (210) with respect to a processing course for a work piece. The method establishes an irradiation-enabled area at a focal length that corresponds to one point (A0,A1,A2) along the processing course, even when the beam irradiating device (104) is moved away from the one point along the processing course of the work piece. The method further recognizes the irradiation-enabled area (210) with respect to the one point along the processing course.</p> |
