Further, a collimator lens is fixed to {HEAD ~ the base member} by using, for example, {TAIL ~ ultraviolet ray hardening resin} 
Further , a collimator lens is fixed to { HEAD ~ the base member } by using , for example , { TAIL ~ ultraviolet ray hardening resin }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL