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. 11, 2014
Filed:
Dec. 27, 2011
Satoshi Kuzuhara, Osaka, JP;
Katsu Yamada, Osaka, JP;
Shinji Yamaguchi, Osaka, JP;
Tsutomu Iwashita, Osaka, JP;
Satoshi Kuzuhara, Osaka, JP;
Katsu Yamada, Osaka, JP;
Shinji Yamaguchi, Osaka, JP;
Tsutomu Iwashita, Osaka, JP;
Panasonic Corporation, Kadoma-shi, JP;
Abstract
A zoom lens system comprising: a negative first lens unit; a positive second lens unit; and a positive third lens unit, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, the first lens unit is composed of two lens elements and includes a positive lens element having at least one aspheric surface, the third lens unit is composed of one lens element, and the condition: 1.74<Ir/√{square root over ((|D×f|))} (D: an optical axial thickness of an object side first lens element in the first lens unit, f: a focal length of the first lens unit, Ir=f×tan(ω), fand ω: a focal length of the entire system and a half value of maximum view angle at a telephoto limit) is satisfied; an imaging device; and a camera are provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile