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:
Jan. 10, 2017
Filed:
Nov. 11, 2013
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Inventor:
Yong-jae Lee, Incheon, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/04 (2006.01); G02B 13/06 (2006.01); G02B 9/64 (2006.01);
U.S. Cl.
CPC ...
G02B 13/04 (2013.01); G02B 9/64 (2013.01); G02B 13/06 (2013.01);
Abstract
A wide-angle lens system includes, in an order from an object side toward an image surface side: a first lens group having positive or negative refractive power; a second lens group having positive refractive power; and a third lens group having negative refractive power. When an object position changes from an infinite distance to a nearest distance, the first and third lens groups are fixed, and the second lens group moves along an optical axis to perform focusing.