Combined optical coupler for coupling a television camera to an endoscope and an observation eyepiece therefore
FIG. 1 is a perspective view of a combined optical coupler for coupling a television camera to an endoscope and an observation eyepiece therefore showing our new design; 
     FIG. 2 is a side elevational view thereof, the opposite side being a mirror image; 
     FIG. 3 is a front elevational view thereof; 
     FIG. 4 is a rear elevational view thereof; 
     FIG. 5 is a top plan view thereof; 
     FIG. 6 is a bottom plan view thereof; 
     FIG. 7 is a perspective view thereof on a reduced scale, the television camera and endoscope cable unit being shown in broken lines for illustrative purposes only.