The projecting optical system projects {HEAD ~ light} emanating from {TAIL ~ the luminous flux} synthesizing means on the screen 
The projecting optical system projects { HEAD ~ light } emanating from { TAIL ~ the luminous flux } synthesizing means on the screen
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH