Endoscope having resistance to high-temperature and high-pressure steam

摘要

An endoscope having resistance to high-temperature and high-pressure steam including an optical unit having at least one optical member; and optical unit supporting frame for supporting the optical unit so that its position can be adjusted in the direction of the optical axis; and a hermetic optical covering member joined to the optical unit supporting frame and having an optical window for covering at least an end portion of the optical unit when it is joined.