The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2007
Filed:
Aug. 10, 2005
Takeshi Yokoi, Hino, JP;
Akira Hasegawa, Musashino, JP;
Shinya Matsumoto, Machida, JP;
Takayuki Suzuki, Hachioji, JP;
Hidetake Segawa, Hachioji, JP;
Hironobu Takizawa, Hachioji, JP;
Takeshi Yokoi, Hino, JP;
Akira Hasegawa, Musashino, JP;
Shinya Matsumoto, Machida, JP;
Takayuki Suzuki, Hachioji, JP;
Hidetake Segawa, Hachioji, JP;
Hironobu Takizawa, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A capsule endoscope is disclosed having an illumination means, an imaging system that includes an objective optical system, and a transparent cover. The invention is characterized by one of: (1) the transparent cover has a larger radius of curvature in a central region of the field of view of the objective optical system than the radius of curvature of the transparent cover in a peripheral region of the field of view of the objective optical system, or (2) the imaging system has a different near point of focus distance for a central region of the field of view than the near point of focus distance of a region that is peripheral to the central region of the field of view and the objective optical system includes a meniscus lens element of positive refractive power and a plano-convex lens element.