Optical system for a video endoscope and video endoscope

A video endoscope for collecting fluorescence imaging images comprising a handle;

• an elongate shaft;
• a distal end section, wherein the distal end section comprises an active pixel electronic image sensor with a progressive offset micro-lens array and a chief ray angle function with a maximum angle of incidence of at least 20°, and an optical system comprising a lens system with a first lens, a second lens, a third lens and/or further lenses in order from an object side to receive an image light from an object field and to direct the image light to the image sensor arranged in an image plane of the optical system;
• and at least one filter coating located at and/or on a support element for forming an interference filter at a position within the optical system, wherein an angle of incidence of the image light on the filter coating is minimized, thereby enabling reliable collection of fluorescence images.