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:
Jan. 11, 2011
Filed:
Jun. 02, 2008
Applicant:
Yuji Yamamoto, Kasukabe, JP;
Inventor:
Yuji Yamamoto, Kasukabe, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image pickup apparatusincludes a memorythat stores information on an object distance obtained from an interchangeable lensmounted on the image pickup apparatus and a memory controllerthat retains the information on the object distance in the memory also after the interchangeable lens is removed from the image pickup apparatus. The image pickup apparatus of a changing-lenses type in which an object in-focus at a same distance can be obtained in a short time when lenses are changed is provided.