Adjustable direct endoscopic optical coupler
FIG. 1 is a right side elevational view of an adjustable direct endoscopic optical coupler, showing my new design, the left side being a mirror image thereof; 
     FIG. 2 is a top plan view, the bottom view being symmetrical; 
     FIG. 3 is a front elevational view thereof; 
     FIG. 4 is a rear elevational view thereof.