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:
Feb. 12, 2013
Filed:
Mar. 29, 2010
San-woei Shyu, Taipei, TW;
Yi-min Chen, Taipei, TW;
San-Woei Shyu, Taipei, TW;
Yi-Min Chen, Taipei, TW;
Lan-Yang Investment Co., Ltd., Taipei, TW;
Abstract
A Fresnel light emitting diode (LED) Lens and a LED Assembly thereof are provided. The Fresnel LED Lens is a lens disposed with a plurality of Fresnel optical surfaces. Each Fresnel optical surface includes a zone area having a plurality of drafts with vertical shape. Each Fresnel optical surface is arranged linearly along a center of a corresponding LED, and each Fresnel optical surface can used to focus light emitted from a LED chip so as to generate a quasi-circle distribution pattern of light with uniform light intensity and satisfy special optical requirements. A LED assembled formed by the Fresnel LED lens and a corresponding LED is used as a light source applied to illumination, mobile phone flashlights or camera flashlights.