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:
Aug. 27, 2013
Filed:
Jun. 16, 2011
Hyong Bae Park, Seoul, KR;
Chi Ho an, Gyeonggi-do, KR;
Jae Hoon Cho, Gyeonggi-do, KR;
Kolen Co., Ltd., , KR;
Abstract
A photographic lens optical system including: a first lens, a second lens, and a third lens sequentially arranged from a side of an object toward an image sensor, wherein the first lens has a positive (+) refractive power and an incident surface that is convex toward the object, the second lens has a negative (−) refractive power and is convex toward the image sensor, the third lens has a negative (−) refractive power, and at least one of an incident surface and an exit surface thereof is aspherical, and wherein an angle of view (θ) of the lens optical system, and a focal length (f) of the lens optical system satisfy the following inequality:1.0<|tan θ|/<2.0.