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. 19, 2016
Filed:
Apr. 26, 2012
Applicant:
Nobuyuki Miyazawa, Utsunomiya, JP;
Inventor:
Nobuyuki Miyazawa, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/16 (2006.01);
U.S. Cl.
CPC ...
G02B 15/161 (2013.01);
Abstract
A zoom lens includes a first lens unit having a positive refractive power and arranged closest to an object side. 0.50<Ym5/Yw30<1.00 is satisfied at a predetermined zoom position except for a wide-angle end and a telephoto end where Yw30 denotes an image height that provides a relative illumination of 0.3 at the wide-angle end, and Ym5 denotes an image height that provides the relative illumination of 0.05 at a predetermined zoom position except for a wide-angle end and a telephoto end.
Miyazawa, Nobuyuki. (2016). Zoom lens and image-pickup apparatus having the same (U.S. Patent No. 9239450). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9239450
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile