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:
Oct. 16, 2018

Filed:

Aug. 17, 2016
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Ryosuke Nagami, Saitama, JP;

Takashi Suzuki, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 9/12 (2006.01); G02B 13/00 (2006.01); G02B 5/00 (2006.01); G02B 9/60 (2006.01);
U.S. Cl.
CPC ...
G02B 13/006 (2013.01); G02B 5/005 (2013.01); G02B 9/60 (2013.01); G02B 13/0045 (2013.01);
Abstract

An imaging lens includes, in order from the object side to the image side, a positive first lens group, a stop, a positive second lens group, and a positive third lens group. The first lens group includes, consecutively in order from the most object side thereof, a negative lens and a positive lens. The second lens group is of a three lens configuration and includes a positive lens and a negative lens. The third lens group includes, consecutively in order from the most object side thereof, a negative lens and a positive lens. The imaging lens satisfies Conditional Formula (1): 0<f1/f2<2, which is related to the focal length f1 of the first lens group and the focal length f2 of the second lens group.


Find Patent Forward Citations

Loading…