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. 27, 2012
Filed:
Oct. 07, 2010
Yoshio Matsumura, Osaka, JP;
Tsutomu Iwashita, Osaka, JP;
Yoshiaki Kurioka, Osaka, JP;
Shinji Yamaguchi, Osaka, JP;
Yoshio Matsumura, Osaka, JP;
Tsutomu Iwashita, Osaka, JP;
Yoshiaki Kurioka, Osaka, JP;
Shinji Yamaguchi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A zoom lens system, in order from an object side to an image side, comprising a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and subsequent lens units including a fourth lens unit having optical power, wherein any one of the first lens unit, the second lens unit, the third lens unit, and the subsequent lens units includes a lens element having a reflecting surface that bends a light beam incident from an object, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit and the third lens unit do not move along an optical axis, and wherein the condition is satisfied: 1.42<nd<1.58 (ndis an average of refractive indices to the d-line of the lens elements constituting the fourth lens unit), an imaging device and a camera are provided.