A system and method for imaging tissue autofluorescence through a video endoscope is described, comprising a light source capable of providing both ultraviolet light capable of inducing tissue autofluorescence and visible light which induces little or no autofluorescence, an optical system to deliver...http://www.google.se/patents/US20020161282?utm_source=gb-gplus-sharePatent US20020161282 - Autofluorescence imaging system for endoscopy
