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:
Oct. 27, 2015
Filed:
Aug. 05, 2014
Fujifilm Corporation, Tokyo, JP;
Hiroshi Yamada, Saitama-ken, JP;
Michio Cho, Saitama-ken, JP;
FUJIFILM CORPORATION, Tokyo, JP;
Abstract
A wide angle lens includes: a positive first lens group, a second lens group, constituted by two or fewer lenses, that moves during focusing operations, and a third lens group that includes at least one positive lens, provided in this order from the object side. The first lens group includes at least a positive meniscus lens with a convex surface toward the object side, a negative meniscus lens with a convex surface toward the object side, a lens having a concave surface with a radius of curvature having a smaller absolute value toward the image side, a negative lens, a cemented lens formed by a positive lens and a negative lens, and an aperture stop provided adjacent to the cemented lens toward the image side thereof, provided in this order from the object side. The wide angle lens satisfies a predetermined conditional formula.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile