a reflector, arranged between the optical lens and the second image lens, to reflect and change {HEAD ~ the direction} of {TAIL ~ the second projecting beam} to the second image lens 
a reflector , arranged between the optical lens and the second image lens , to reflect and change { HEAD ~ the direction } of { TAIL ~ the second projecting beam } to the second image lens
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH