Halation is prevented in an image constructed using high-intensity light such as light specularly reflected at the surface of a subject, thereby permitting observation to be carried out using a clear image. Provided is a scanning endoscope (1) comprising: an optical scanning unit (10) that changes the emission angle of illuminating light emitted from the tip of an insertion part (2) in order to scan the emitted illuminating light over a subject a plurality of light-receiving units (13) that are provided with spaces therebetween in the peripheral direction of the tip of the insertion part (2), and that receive returning light that returns from the subject as a result of the scanning with the illuminating light by the optical scanning unit (10) a light detection unit (14) that detects the intensity of the returning light received by the light-receiving unit (13) a returning light selection unit (15) that selects returning light that is determined to have an intensity lower than a predetermined threshold value by the light detection unit (14) and a storage unit (5) that associates and stores the intensity of the returning light selected by the returning light selection unit (15) and the scanning position of the illuminating light from the optical scanning unit (10).Selon la présente invention, la formation de halo est prévenue dans une image construite en utilisant une lumière dintensité élevée telle quune lumière réfléchie de façon spéculaire à la surface dun sujet, de manière à permettre que lobservation soit effectuée en utilisant une image nette. La présente invention concerne en outre un endoscope à balayage (1) comprenant : une unité de balayage optique (10) qui modifie langle dune lumière dillumination émise depuis la pointe dune partie dinsertion (2) afin damener la lumière dillumination émise à balayer un sujet une pluralité dunités de réception de lumière (13) qui présentent des espacements entre celles-ci dans la direction périphérique de la pointe de la pa
