wherein a cross point is an intersection point of {HEAD ~ an optical axis} of the illumination optical system and {TAIL ~ the reflective liquid crystal display} 
of
wherein a cross point is an intersection point of { HEAD ~ an optical axis } of the illumination optical system and { TAIL ~ the reflective liquid crystal display }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL