Image of light in the vicinity of {HEAD ~ the focus} of {TAIL ~ the projection lens} 68 is projected upside down and left side to be right side at the forward of projection lens 68 
of
Image of light in the vicinity of { HEAD ~ the focus } of { TAIL ~ the projection lens } 68 is projected upside down and left side to be right side at the forward of projection lens 68
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH