Disclosed is a laser processing apparatus and method for enhancing {HEAD ~ processing efficiency} of {TAIL ~ an object} by means of a polygon mirror 
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Disclosed is a laser processing apparatus and method for enhancing { HEAD ~ processing efficiency } of { TAIL ~ an object } by means of a polygon mirror
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH