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. 08, 2007
Filed:
Sep. 09, 2005
Applicant:
Makoto Sekita, Yokohama, JP;
Inventor:
Makoto Sekita, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 13/16 (2006.01); G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
At least one exemplary embodiment is directed to a zoom lens system which includes, in order from an object side to an image side a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. In zooming, a distance between the first lens unit and the second lens unit and a distance between the second lens unit and the third lens unit are changed.