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