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:
Nov. 03, 2015
Filed:
Apr. 01, 2015
Fujifilm Corporation, Tokyo, JP;
Taro Asami, Saitama-ken, JP;
Toshiaki Katsuma, Saitama-ken, JP;
Toru Ito, Saitama-ken, JP;
Masato Kondo, Saitama-ken, JP;
Ryoko Otomo, Saitama-ken, JP;
FUJIFILM CORPORATION, Tokyo, JP;
Abstract
An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. When a curvature radius of an object-side surface of the fourth lens is Rand a curvature radius of an image-side surface of the fourth lens is Rand an Abbe number of the material of the third lens for d-line is νdand an Abbe number of the material of the fifth lens for d-line is νdthe following conditional formulas (1) and (6) are satisfied:−0.61<(8+9)/(8−9)<0.44   (1); and38.1<ν3+ν5<45.1   (6).