{HEAD ~ The real image projection system} 26, further comprising {TAIL ~ means} for adjusting a position of said object 
{ HEAD ~ The real image projection system } 26 , further comprising { TAIL ~ means } for adjusting a position of said object
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH