{HEAD ~ The optical lens} 30 includes {TAIL ~ a beam splitter} arranged between the imaging device 20 and the first imaging lens 40 that the image beam C from the imaging device 20 may emit through the optical lens 30 
includes
{ HEAD ~ The optical lens } 30 includes { TAIL ~ a beam splitter } arranged between the imaging device 20 and the first imaging lens 40 that the image beam C from the imaging device 20 may emit through the optical lens 30
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH 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