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:
May. 11, 2010
Filed:
Jul. 01, 2008
Applicant:
Jin-woo Kim, Seongnam-si, KR;
Inventor:
Jin-woo Kim, Seongnam-si, KR;
Assignee:
Samsung Digital Imaging Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wide-angle zoom optic system includes: in an order from an object, a first lens group having a negative refractive power; a second lens group having a positive refractive power; and a third lens group having a positive refractive power, wherein the first lens group includes two lens elements. In the zoom optic system, the ratio of the distance between the last lens element with respect to the object and an image field at a wide-angle position to a focal length at the wide-angle position is adjusted, so that a compact zoom optic system having a high magnification and a wide viewing angle can be implemented.