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. 02, 2012
Filed:
Dec. 23, 2009
Shinji Yamaguchi, Osaka, JP;
Takehiro Nishioka, Nara, JP;
Takuya Imaoka, Kanagawa, JP;
Shunichiro Yoshinaga, Hyogo, JP;
Shinji Yamaguchi, Osaka, JP;
Takehiro Nishioka, Nara, JP;
Takuya Imaoka, Kanagawa, JP;
Shunichiro Yoshinaga, Hyogo, 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 negative optical power, a second lens unit having positive optical power, and at least one subsequent lens unit having optical power, wherein in zooming from a wide-angle limit to a telephoto limit, the lens units are moved along an optical axis such that an air space between at least any two lens units among the lens units should vary, so that variable magnification is achieved, wherein the first lens unit includes a lens element having a reflecting surface for bending a light beam incident from the object, and wherein the condition is satisfied: 0.20<|f|/f<0.52 (f/f≧4.0, fis a composite focal length of the first lens unit, and each of fand fis a focal length of the entire system at a telephoto limit or a wide-angle limit), an imaging device and a camera are provided.