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:
Mar. 12, 2013
Filed:
Sep. 21, 2011
Imaging lens, optical apparatus equipped with imaging lens and method for manufacturing imaging lens
Mami Muratani, Tokyo, JP;
Haruo Sato, Kawaguchi, JP;
Motohisa Mouri, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An imaging lens SL mounted in a single lens reflex digital camerais composed of, in order from an object side, a first lens group Ghaving negative refractive power, a second lens group Ghaving positive refractive power, and a third lens group Ghaving negative refractive power. Upon focusing on a near-distance object from an infinitely distant object, a configuration is that at least any one of the first lens group Gand the second lens group Gis moved to the object side to vary a distance between the first lens group Gand the second lens group G. Accordingly, a downsized imaging lens having a small moving amount upon shooting a close range object, in which various aberrations are well corrected is provided.