Further, an annular alignment mark AM having a point of intersection between the optical axis 01 and the image pickup element of the television camera 3 as the center of symmetry and segments X and Y are displayed on the television monitor 5 by {HEAD ~ the output} of {TAIL ~ the computer} 
of
Further , an annular alignment mark AM having a point of intersection between the optical axis 01 and the image pickup element of the television camera 3 as the center of symmetry and segments X and Y are displayed on the television monitor 5 by { HEAD ~ the output } of { TAIL ~ the computer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL