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.

Date of Patent:
Apr. 25, 2017

Filed:

Sep. 17, 2015
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Taro Asami, Saitama-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 13/04 (2006.01); G02B 9/62 (2006.01); G02B 13/00 (2006.01); G02B 3/04 (2006.01); G02B 15/177 (2006.01); G02B 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); G02B 13/04 (2013.01); G02B 13/18 (2013.01); G02B 3/04 (2013.01); G02B 5/005 (2013.01); G02B 9/62 (2013.01); G02B 13/002 (2013.01); G02B 15/177 (2013.01);
Abstract

An imaging lens consists of a negative first lens, a positive second lens, a negative third lens, a positive fourth lens, a positive fifth lens, and a negative sixth lens in order from the object side. The Abbe number of the material of the sixth lens with respect to the d-line is less than or equal to 30. When the radius of curvature of the object side surface of the third lens is taken as RF, the radius of curvature of the image side surface of the third lens is taken as RR, and the Abbe number of the material of the third lens with respect to the d-line is taken as νd, the following conditional expressions are satisfied:1.35<(33)/(33)<6.0  (1)ν3<30.0  (2).


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