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:
Sep. 19, 2017
Filed:
Aug. 08, 2013
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Fumikazu Kanetaka, Chiba, JP;
Hisashi Uno, Tokyo, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); G02B 9/34 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0015 (2013.01); G02B 9/34 (2013.01); G02B 13/002 (2013.01); G02B 13/0045 (2013.01); G02B 13/18 (2013.01);
Abstract
An imaging lens includes: a movable lens group configured to travel to allow the imaging lens to come into focus; and a rearmost lens group arranged at a most-image-sided fixed position, and having negative refractive power. Following conditional expression is satisfied,−2<<−0.45  (1)where ft is a total focal length of the imaging lens in a condition that the imaging lens is in focus on an object at infinite, and fr is a focal length of the rearmost lens group.