| 摘要 |
At the time of irradiation of illumination light rays of an endoscope, a shadow is eliminated by leading illumination light rays passing through a second concave portion (14) of a protruding portion (11) of a hood main body (10a) to a shadow part of the protruding portion (11) of the hood main body (10a) formed in an observation visual field range of the endoscope. <IMAGE> |
