{HEAD ~ Each projector} consists mainly of an illuminating means, a splitting means, red, green, and blue color display means, {TAIL ~ a luminous flux synthesizing means}, and a projecting optical system 
{ HEAD ~ Each projector } consists mainly of an illuminating means , a splitting means , red , green , and blue color display means , { TAIL ~ a luminous flux synthesizing means } , and a projecting optical system
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH