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. 03, 2013
Filed:
Jul. 09, 2013
Quarkstar Llc, Las Vegas, NV (US);
Steven C. Allen, Beverly, MA (US);
Andrew J. Steckl, Cincinnati, OH (US);
Quarkstar LLC, Las Vegas, NV (US);
Abstract
A light emitting device includes a base; a light emitting diode (LED) supported by the base; a layer spaced apart from the LED and including a light emitting material of refraction index n. An enclosure formed by the layer and the base encloses the LED. A medium inside the enclosure between the LED and the layer has a refraction index n<n; and an optic in contact with the layer and having a refraction index n≧n. The layer is positioned between the optic and the LED. The optic has, at a surface of contact with the layer, a radius r measured along a ray originating from the LED, and, at an output surface of the optic, another radius R measured along the same ray, such that R≧r·(n/n), where nis a refraction index of a medium adjacent the output surface of the optic.