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:
Sep. 29, 2015
Filed:
Nov. 24, 2010
Susumu Sato, Yotsukaido, JP;
Susumu Sato, Yotsukaido, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An optical element Oc comprising, in order from an object side: a first segment group Grhaving positive refractive power; a second segment group Grhaving positive refractive power; a third segment group Grhaving negative refractive power; and a fourth segment group Grhaving positive refractive power; focusing on a near-distance object point from an infinite-distance object point being conducted by moving said first segment group Gralong an optical axis, said third segment group Grbeing moved in a direction including a component perpendicular to the optical axis, and said optical element having positive refractive power on the whole, thereby providing an optical element including both of the focusing lens and the vibration reduction lens and capable of downsizing an imaging optical system including this optical element and acquiring a high image forming performance.