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:
Apr. 14, 2015
Filed:
Sep. 13, 2012
Daisuke Ochi, Utsunomiya, JP;
Yuki Nagao, Utsunomiya, JP;
Atsushi Koyama, Utsunomiya, JP;
Masayasu Mizushima, Utsunomiya, JP;
Shigehiro Torii, Utsunomiya, JP;
Kunihiko Sasaki, Utsunomiya, JP;
Shota Shimada, Tokyo, JP;
Hirokazu Shukuin, Shioya-gun, JP;
Daisuke Ochi, Utsunomiya, JP;
Yuki Nagao, Utsunomiya, JP;
Atsushi Koyama, Utsunomiya, JP;
Masayasu Mizushima, Utsunomiya, JP;
Shigehiro Torii, Utsunomiya, JP;
Kunihiko Sasaki, Utsunomiya, JP;
Shota Shimada, Tokyo, JP;
Hirokazu Shukuin, Shioya-gun, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An optical apparatus is configured to execute a manual focus mode in which focusing is performed by an operation of a manual operating unit by moving an image pickup optical system configured to form an optical image of an object. The optical apparatus includes a diaphragm configured to adjust a light quantity, and a controller configured to control a movement of the image pickup optical system in accordance with an operating amount of the manual operating unit so that a unit moving amount that is a moving amount of an in-focus position of the image pickup optical system per unit operation of the manual operating unit corresponds to a product between a diameter of a minimum confusion circle of the image pickup optical system, a diaphragm value of the diaphragm in the manual focus mode, and a coefficient that is a natural number or a reciprocal of the natural number.