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.:

US 9599789 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 21, 2017

Filed:

Mar. 10, 2015
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Hiromitsu Yamakawa, Saitama-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 9/60 (2006.01); G02B 13/06 (2006.01); G02B 13/00 (2006.01); G02B 13/04 (2006.01); G02B 9/34 (2006.01);
U.S. Cl.
CPC ...
G02B 9/60 (2013.01); G02B 13/06 (2013.01); G02B 9/34 (2013.01); G02B 13/004 (2013.01); G02B 13/04 (2013.01);
Abstract

The imaging lens consists essentially of a front group that consists essentially of a negative first lens having a meniscus shape with a convex surface toward the object side, a negative second lens and a positive third lens; a stop; a positive rear group that consists essentially of one positive lens and one negative lens. When the Abbe number with respect to the d-line of the material of the first lens is νdand the refractive index thereof is Ndconditional formula (1) below is satisfied:60.0<νd1+26*1<85.0  (1).


Find Patent Forward Citations

Yamakawa, Hiromitsu. (2017). Imaging lens and imaging apparatus (U.S. Patent No. 9599789). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9599789

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