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