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. 18, 2014
Filed:
Sep. 13, 2011
Ganapathi Subramania, Albuquerque, NM (US);
Arthur J. Fischer, Sandia Park, NM (US);
George T. Wang, Albuquerque, NM (US);
Qiming LI, Albuquerque, NM (US);
Ganapathi Subramania, Albuquerque, NM (US);
Arthur J. Fischer, Sandia Park, NM (US);
George T. Wang, Albuquerque, NM (US);
Qiming Li, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
A volume-scalable, high-brightness, electrically driven visible light source comprises a three-dimensional photonic crystal (3DPC) comprising one or more direct bandgap semiconductors. The improved light emission performance of the invention is achieved based on the enhancement of radiative emission of light emitters placed inside a 3DPC due to the strong modification of the photonic density-of-states engendered by the 3DPC.