As described below {HEAD ~ the outer surfaces} of {TAIL ~ the panels} 16 serve as image projection surfaces 
of
As described below { HEAD ~ the outer surfaces } of { TAIL ~ the panels } 16 serve as image projection surfaces
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH