Endoscope having resistance to high-temperature and high-pressure steam
AssigneeOlympus Optical Co., Ltd.
InventorsMasakazu Higuma, Yasuyuki Futatsugi, Susumu Aono
Life of this patent
Estimating the term…
Abstract
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.
Claims28
An endoscope comprising:
- a light transmitting member for transmitting incident light;
- a frame having an inner wall and an outer wall, said light transmitting member being fixed to said inner wall of said frame;
- and
- a cover hermetically joined to said outer wall of said frame to cover said light transmitting member, said cover having an optical window for guiding light to said light transmitting member.
A method of assembling an endoscope, the method comprising:
- providing a frame having an inner wall and an outer wall;
- fixing a light transmitting member to said inner wall of said frame;
- fitting a cover having an optical window for guiding light to said light transmitting member to said outer wall of said frame;
- and hermetically joining said cover to said outer wall of said frame.
An endoscope comprising:
- a hollow first frame, said first frame having an inner wall and an outer wall;
- a first optical member arranged in a first inner space defined by said first frame;
- a hollow second frame, said second frame having an inner wall and an outer wall, and said first frame being received in a second inner space defined by said second frame;
- a third frame hermetically joined to said outer wall of said second frame;
- and
- a second optical member provided in said third frame, said second optical member guiding light to said first optical member.
An endoscope comprising:
- an image guide fiber for transmitting an optical image;
- a frame having an inner wall and an outer wall, said frame covering an outer surface of said image guide fiber;
- an optical unit having at least one optical lens, said optical unit being optically coupled to said image guide fiber;
- and
- a cover hermetically joined to said outer wall of said frame to cover said optical unit, said cover having an optical window for guiding light to said at least one optical lens.
An endoscope comprising:
- an optical unit having at least one optical lens;
- fixing means for fixing said optical unit, said fixing means having an inner wall and an outer wall, said optical unit being fixed to said inner wall of said fixing means;
- cover means hermetically joined to said outer wall of said fixing means to cover said optical unit, said cover means having an optical window for guiding light to said at least one optical lens.
Dependencies are inferred from the claim text.