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:
Apr. 13, 2010
Filed:
Aug. 03, 2005
Applicant:
Seiya Ohta, Utsunomiya, JP;
Inventor:
Seiya Ohta, Utsunomiya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/262 (2006.01);
U.S. Cl.
CPC ...
Abstract
At least one exemplary embodiment is directed to a rear zoom lens system which includes focus preset devicesandfor controlling the storage of a given distance from a subject (camera-to-subject distance) and shift of focus to the position. Trajectory information can be stored corresponding to each of camera-to-subject distances and indicating correspondences between zoom-and-focus positions, which facilitates moving the second lens group to compensate for the movement of the first moving lens group while facilitating maintaining its focus.