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