| 摘要 |
An endoscope (10) includes an elongated tube (13). An objective lens system (30) is disposed in the elongated tube, for passing image light from an object (80). A fiber optic image guide (31) includes plural optical fibers (52) bundled together, has a distal tip (48), is inserted through the elongated tube, for transmitting the image light focused on the distal tip by the objective lens system in a proximal direction. A displacing device (32, 90, 100) displaces the distal tip laterally and periodically upon receiving entry of the image light being focused by use of a piezoelectric actuator (35, 92) positioned outside the distal tip. An image sensor (56) creates images in plural set positions of the distal tip. First to fourth images among the plural images created consecutively are combined to form a first synthesized image. Then second to fifth images among the plural images without use of the first image are combined to form a second synthesized image. |
