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:
Oct. 11, 2016
Filed:
Oct. 29, 2014
Cree, Inc., Durham, NC (US);
Zongjie Yuan, Libertyville, IL (US);
Kurt S. Wilcox, Libertyville, IL (US);
Benjamin P. Beck, Union Grove, WI (US);
Lisa Marie Barglind, Niagara, WI (US);
Steven Patkus, Mount Pleasant, WI (US);
William Herschel Couch, Wake Forest, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
According to one aspect, an optical lens includes a substrate having a first side and a second side opposite the first side. The optical lens includes a first pattern of Fresnel features having a first focal length disposed on the first side and a second pattern of Fresnel features having a second focal length disposed on the second side. The first pattern of Fresnel features is disposed perpendicular to the second pattern of Fresnel features, and the first focal length is different from the second focal length.