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:
Sep. 27, 2011
Filed:
Apr. 12, 2010
Phil Ho Jung, Suwon-si, KR;
Moon DO Yi, Goyang-si, KR;
Phil Ho Jung, Suwon-si, KR;
Moon Do Yi, Goyang-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
The present invention provides an optical system for a camera including: a first lens which has a negative refractive power and has a meniscus shape convex toward object side; a second lens which has a negative refractive power and has a convex surface toward object side; a third lens which has a positive refractive power and has a convex surface toward object side; and a fourth lens which has a positive refractive power and has a convex surface toward image side, wherein the optical system satisfies the following inequalities: 0.3<v/v<0.8, and 0.06<f/TL/0.2, where vindicates an Abbe number of the second lens, vindicates an Abbe number of the third lens, findicates the overall focal distance of lens system, and TL indicates a distance from a vertex of the object side of the first lens to an imaged plane.