This disclosure relates to head {HEAD ~ mounted display apparatus} employing {TAIL ~ one or more reflective optical surfaces}, e.g., one or more free space, ultra wide angle, reflective optical surfaces  
employing
This disclosure relates to head { HEAD ~ mounted display apparatus } employing { TAIL ~ one or more reflective optical surfaces } , e.g. , one or more free space , ultra wide angle , reflective optical surfaces
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH