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. 30, 2011
Filed:
Sep. 03, 2008
Ming-che Kuo, Taipei, TW;
Ming-Che Kuo, Taipei, TW;
E-Pin Optical Industry Co., Ltd., Taipei, TW;
Abstract
An aspherical fiber coupling lens applied to a photoelectric coupling module is disclosed. The spherical fiber coupling lens is a bi-convex lens with positive refraction power and having a first optical surface and a second optical surface, both are aspherical surfaces while optical features of the lens satisfy the following conditions: wherein f is the effective focal length of the lens, dis thickness of the lens on optical axis, Nis refraction index of the lens, R, Rrespectively are curvature radiuses of the first optical surface and the second optical surface of the lens. Thereby the lens has features of small focus, compact volume and high coupling efficiency so that applications of the photoelectric coupling module are improved.