Fig. 3.

Fiber endoscope large field of view imaging. The scanning fluorescence image captured from a large field of view with the fiber endoscope at a working distance of 200m is a high fidelity replica of the widefield image taken with a microscope objective. The difference in the fluorescence level between the center and the edges is attributed to the different collections efficiencies away from the optical axis of the fiber and the quasi linear dependence observed coincides with the predicted behavior for the specific working distance (see Fig. 2(d)). The endoscope is capable of providing high information capacity, large field of view images. Scale bar equal to 20μm.