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:
Dec. 22, 2009
Filed:
Nov. 15, 2007
Te-lun Hsu, Taipei Hsien, TW;
Te-Lun Hsu, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A lens system includes a positive refractive power first lens, a positive refractive power second lens, and a negative refractive power third lens in that order from the object side of the lens system. Wherein the lens system satisfies the following conditions: (1) 0.25<RF/F<0.5; (2) RF<RR<0; and (3) 0<RF<RR, wherein, RR and RF are radius of curvature of object side surface and image side surface of the first lens respectively, RR and RF are radius of curvature of object side surface and image side surface of the second lens respectively, and F is a focal length of the lens system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile