Therefore, even if {TAIL ~ the collimator lens} 7 is mounted in a different manner, or to a separate member for {HEAD ~ a reason} in design or the like, the above described effect can be similarly achieved 
Therefore , even if { TAIL ~ the collimator lens } 7 is mounted in a different manner , or to a separate member for { HEAD ~ a reason } in design or the like , the above described effect can be similarly achieved
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH