In addition, the dissipation or {HEAD ~ loss} of {TAIL ~ the laser beam} due to the division is prevented by increasing the number of the reflection planes of the polygon mirror to enable the divided laser beams to be condensed on the lens 
of
In addition , the dissipation or { HEAD ~ loss } of { TAIL ~ the laser beam } due to the division is prevented by increasing the number of the reflection planes of the polygon mirror to enable the divided laser beams to be condensed on the lens
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH