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:
Jul. 29, 2014
Filed:
Mar. 11, 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 is described. The light emitting device includes a base; a light emitting diode supported by the base; a first layer spaced apart from the light emitting diode and including a light emitting material, the first layer having a refractive index n; a transparent optic having a refractive index nthat is greater than or equal to n, the transparent optic having a convex surface facing away from the light emitting diode and the first layer being positioned between the transparent optic and the light emitting diode. A gap between the light emitting diode and the first layer has a refractive index nthat is less than n, and the convex surface has a radius of curvature sufficiently large relative to a dimension of the first layer to eliminate total internal reflection of light entering the transparent optic from the first layer.