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:
Sep. 30, 2025
Filed:
Dec. 14, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Toru Ishimasa, Kanagawa, JP;
Mitsuru Morohashi, Tokyo, JP;
Toshihiro Ogawa, Tokyo, JP;
Kohei Matsumoto, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical apparatus includes first and second lens groups, a guide barrel having a straight-guiding groove, a cam barrel, and an interlocking member having a first coupling portion. The cam barrel includes a first cam groove that moves the first lens group and a second cam groove that is different from the first cam groove and moves the interlocking member. When the second lens group changes a focal length range of an optical system from a second focal length range to a first focal length range, the first lens group is moved in a direction of an optical axis by the straight-guiding groove and the first cam groove, the interlocking member is moved in the direction of the optical axis by the straight-guiding groove and the second cam groove, and the first coupling portion withdraws the second lens group to outside of an optical path of the first lens group.