[Problem] To provide a laparoscope which has a distal structure that is capable of suppressing reflection and diffusion of excitation light and of suppressing leak of reflected light when excitation light is emitted to excite fluorescence of an observation portion. [Solution] A laparoscope which comprises an optical fiber for excitation light that directs excitation light to excite fluorescence and an optical fiber for receiving the fluorescence, wherein the outer periphery of the optical fiber for excitation light is light-shielded from the distal end of the optical fiber for excitation light. The above problem is solved by any one of the following: (A) an end face of the distal end of the laparoscope does not have a sealing window member and gaps are sealed, (B) of the end faces of the distal end of the laparoscope, at least the end face of the optical fiber for excitation light does not have a sealing window member and gaps are sealed, and the end faces other than the end face of the optical fiber for excitation light have a sealing window member, or (C) the end face of the laparoscope has a sealing coating material which allows excitation light and fluorescence to pass therethrough.La présente invention concerne un laparoscope qui présente une structure distale qui peut supprimer la réflexion et la diffusion de la lumière dexcitation et supprimer toute fuite de lumière réfléchie lorsque la lumière dexcitation est émise pour exciter la fluorescence dune partie dobservation. La présente invention concerne un laparoscope qui comprend une fibre optique émettant une lumière dexcitation qui dirige la lumière dexcitation de sorte quelle excite la fluorescence et une fibre optique permettant de recevoir la fluorescence, la périphérie externe de la fibre optique émettant une lumière dexcitation étant protégée de la lumière issue de lextrémité distale de la fibre optique émettant une lumière dexcitation. Linvention concerne ce qui suit : (A) une face terminale de lextrémi
