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. 27, 2014
Filed:
Jun. 29, 2011
Jae Hoon Cho, Gyeonggi-Do, KR;
Jae Hoon Cho, Gyeonggi-Do, KR;
Kolen Co., Ltd., , KR;
Abstract
A lens optical system includes first to fourth lenses that are sequentially arranged from an object, and which are between the object and an image sensor on which an image of the object is formed. 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 both surfaces that are concave. The third lens has a positive refractive power and has a meniscus shape that is convex toward the image sensor. The fourth lens has a negative refractive power and at least one of an incident surface and an exit surface thereof is an aspherical surface. The lens optical system may satisfy an inequality that 0.5<|tan θ|/f<1.5, where 'θ' denotes an angle of view of the lens optical system and 'f' denotes a focal length of the lens optical system.