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:
Dec. 20, 2011
Filed:
Mar. 11, 2010
Mitsuyoshi Okamoto, Osaka, JP;
Koji Shibuno, Osaka, JP;
Koji Hashigami, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An interchangeable lens which is mountable to a camera body and operates according to a command from the camera body includes a diaphragm operable to regulate an amount of light from a subject by changing an aperture, a drive unit operable to change the aperture of the diaphragm, and a lens controller operable to control the drive unit to change the aperture of the diaphragm according to an instruction received from the camera body. When the lens controller receives a new instruction from the camera body while changing the aperture of the diaphragm, the lens controller controls the drive unit to change the aperture of the diaphragm based on the new instruction without waiting for completion of the change of the aperture according to a previous instruction.