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:
Jul. 09, 2013
Filed:
Nov. 23, 2011
Chun-cheng Ko, New Taipei, TW;
Chun-Cheng Ko, New Taipei, TW;
Wcube Co., Ltd., George Town, KY;
Abstract
An image lens includes a first lens and a second lens. The first lens includes a first and a second surfaces. The second lens includes a third and a fourth surfaces. The image lens satisfies: FB/TTL>0.23; GR/F>1.93; Z/Y>0.27; Z/T<0.89; GR/F<GR/F<GR/F, FB is a distance between the fourth surface and the image plane, TTL is a total length of the image lens, Z is a distance from a central point of the fourth surface to the fourth surface along the optical axis, Y is a distance from the central point of the fourth surface to an edge of the fourth surface along a direction perpendicular to the optical axis, T is a thickness of the second lens, GR, GRand GRare curvature radiuses of the third, fourth and second surfaces, Fis a focal length of the second lens.