The splitting means splits {HEAD ~ light} emanating from the illuminating means into {TAIL ~ three color light rays} of red, green, and blue 
into
The splitting means splits { HEAD ~ light } emanating from the illuminating means into { TAIL ~ three color light rays } of red , green , and blue
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH