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:
May. 01, 2012
Filed:
May. 14, 2009
Takashi Abe, Ehime, JP;
Koji Shibuno, Osaka, JP;
Takashi Abe, Ehime, JP;
Koji Shibuno, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An interchangeable lens mountable to a camera body includes an optical system operable to collect light from a subject to form a subject image, a diaphragm operable to adjust an amount of light of the subject image to be collected by the optical system, a driving unit operable to drive the diaphragm based upon an aperture value within a predetermined range, a storage unit operable to store speed information relating to a speed at which the driving unit can be set to drive the diaphragm, and a transmitting unit operable to transmit the speed information stored in the storage unit to the camera body. The speed information is provided for each of a plurality of aperture value ranges which are obtained by dividing the predetermined range of the aperture value, and relates to the speed indicating a settable rate of change in the light amount which changes as the driving unit drives the diaphragm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile