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:
Mar. 24, 2015
Filed:
May. 13, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Toru Ohara, Utsunomiya, JP;
Minoru Uchiyama, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An interchangeable lens detachable from a camera includes a variator lens configured to change a focal length by moving in an optical axis direction, a focus lens configured to change a focusing state of an object image by moving in the optical axis direction, a diaphragm configured to adjust an amount of light, an acquisition unit configured to acquire an amount of change in image magnification corresponding to information about a position of the variator lens, a position of the focus lens, and an aperture value of the diaphragm, and a lens control unit configured to transmit the amount of change in image magnification to the camera.