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. 10, 2019
Filed:
Aug. 14, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroki Ito, Hiratsuka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical apparatus which has a lens movable forward or backward in a direction of an optical axis through operation of an operating member, prevents unintended motions in the lens, and improves operating quality of the operating member at low cost. A fixing member rotatably holds the operating member and has a first contact surface coming into contact with a pressing member sandwiched between the operating member and the fixing member. The operating member rotatable about the optical axis moves an image pickup optical system in the direction of the optical axis and has a second contact surface facing the first contact surface and coming into contact with the pressing member. The pressing member applies pressing force as load on the operating member to the operating member. The first or second contact surface has a slope that changes the pressing force according to a rotational angle of the operating member.