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. 08, 2009
Filed:
Sep. 19, 2007
Jun Sugita, Sagamihara, JP;
Masanori Ishikawa, Saitama, JP;
Hiroshi Akada, Kawasaki, JP;
Katsuhiro Inoue, Utsunomiya, JP;
Sawako Ito, Utsunomiya, JP;
Jun Sugita, Sagamihara, JP;
Masanori Ishikawa, Saitama, JP;
Hiroshi Akada, Kawasaki, JP;
Katsuhiro Inoue, Utsunomiya, JP;
Sawako Ito, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The image-pickup apparatus includes a controller that controls the energization of the actuator for driving the aperture stop. The controller receives from a lens apparatus information on a time period for controlling the energization of the actuator, the information being set corresponding to the type of the actuator. During an image-pickup period in a state in which the aperture stop has been driven to a target aperture position, the controller outputs to the lens apparatus an instruction for stopping the energization of the actuator or reducing the energization amount thereof in response to the elapse of the time period. This can reduce power consumption.