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. 13, 2014
Filed:
Jul. 14, 2011
Applicant:
Takumi Yamanaka, Utsunomiya, JP;
Inventor:
Takumi Yamanaka, Utsunomiya, JP;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 7/10 (2006.01);
U.S. Cl.
CPC ...
G02B 7/10 (2013.01);
Abstract
A zoom lens barrel includes a fixed barrel in which a first mark is indicated, and a zoom operation ring in which a second mark is indicated, the zoom operation ring being supported on the fixed barrel. The zoom lens barrel has a focal length region where at least angles of view of a circular fisheye and a full-frame fisheye can be formed, and one of the angles of view of the circular fisheye and the full-frame fisheye is formed for a predetermined image-pickup element size in a focal length where the first mark and the second mark are matched to each other.