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