{HEAD ~ A method} of producing {TAIL ~ an image} for viewing by an eye in an image field with a portable head mounted display, comprising the steps of: 
of producing
{ HEAD ~ A method } of producing { TAIL ~ an image } for viewing by an eye in an image field with a portable head mounted display , comprising the steps of :
HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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 OTH OTH