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. 04, 2010
Filed:
Jan. 23, 2006
Applicant:
Seiya Ohta, Yokohama, JP;
Inventor:
Seiya Ohta, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); H04N 5/262 (2006.01); G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The object of this invention is to attain accurate control by correcting any deviation of a cam locus due to manufacturing errors and the like upon controlling a zoom lens and focus lens along a theoretical cam locus. To attain this object, a differential locus between the theoretical cam locus (stored cam locus) and a true cam locus due to an error obtained by a measurement is obtained, and is stored as cam correction data. The lens control is made while correcting the theoretical cam locus by the correction data.