| 摘要 |
PROBLEM TO BE SOLVED: To obtain an endoscope capable of jetting a fluid in an amount sufficient to wash a photographing lens from an air/water supply nozzle.SOLUTION: A first insertion tube 163 is inserted to an inner periphery of a connection tube 118. A first jetting port side plane 171, an inner side face of a first guide part 161, and an inner side face of a first lid 162 form a first jetting pipeline 180. In the state where a first air/water supply nozzle 160 is attached to a first notched part 119, a distance between the first guide part 161 and an optical axis A of a photographing lens 141 becomes longer as moving from a first notched bottom surface 174 to a distal end face 107. According as the distance between the first guide part 161 and the optical axis A of the photographing lens 141 is increased as approaching the distal end face 107 from the first notched bottom surface 174, a distance between an axis B1 of the jetting pipeline and the optical axis A of the photographing lens 141 can be made longer than before. |
