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