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:
Dec. 30, 2014
Filed:
Nov. 29, 2013
Fujifilm Corporation, Tokyo, JP;
Hiromitsu Yamakawa, Saitama-ken, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
An imaging lens consists of a first-lens having a meniscus-shape with its convex-surface facing an object-side and negative-refractive-power and second through fifth lenses, at least one of the surfaces of each of which is aspherical. An image-side surface of the second-lens has a concave-shape facing an image-side. The second-lens has negative-refractive-power. An object-side surface of the third-lens has a convex-shape facing the object-side. The third-lens has positive-refractive-power. An image-side surface of the fourth-lens has a convex-shape facing the image-side. The fourth-lens has positive-refractive-power. The fifth-lens has a meniscus-shape with its convex-surface facing the image-side and negative-refractive-power. Predetermined conditional formulas about a combined paraxial focal-length of the third-lens and the fourth-lens, a distance on an optical-axis from an object-side surface of the first-lens to an image-plane, and a distance on the optical-axis from the object-side surface of the first-lens to the image-side surface of the second-lens are satisfied.