Fig. 2.

a) Monochromatic (@ 532 nm) Strehl ratio indicates a diffraction limited performance (Strehl ratio≥0.8) within the entire field of view. Consideration of a quadratic object with 173 μm side length. b) Monochromatic image simulation (@ 532 nm) of a Siemens-star-type object (left) observed through the endomicroscope (right) confirms the excellent point-to-point image quality but exposes slight vignetting and pincushion distortion effects progressively increasing towards the edge of the field of view. The pixelation of the camera chip is not considered. Scale in object space (Evaluations performed with ZEMAX).