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. 06, 2007
Filed:
May. 30, 2006
Dong-woo Kim, Changwon-si, KR;
Dong-woo Kim, Changwon-si, KR;
Samsung Techwin Co., Ltd., Changwon, KR;
Abstract
A compact zoom lens that include: 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 through third lens groups are arranged sequentially from an object when zooming is performed from a wide angle position to a telephoto position, a distance between the first lens group and the second lens group decreases and a distance between the second lens group and the third lens group increases, and the zoom lens includes at least one plastic lens and satisfies the inequality where Gdenotes a thickness of the first lens group, Gdenotes a thickness of the second lens group, Gdenotes a thickness of the third lens group, and fw denotes an overall focal length at the wide angle position. Accordingly, the zoom lens can ensure a high zoom ratio, and be made compact and light at low manufacturing costs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile