Fig. 1.

Endoscopic MFI system overview. The proximal illumination system combining five-laser beams into the illumination fiber (IF) is shown top left. The proximal illumination system imaging the proximal face of the CFB through the microscope objective (Obj.), filter wheel (FW), and onto the detector (Det.) is shown bottom left. On the right is a zoomed in model of the distal tip showing the tapered IF on top and the imaging lens with CFB on bottom, both flush with the distal end of the ferrule. A protective cover plate is not shown.