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:
Aug. 23, 2011
Applicant:
George Brandes, Raleigh, NC (US);
Inventor:
George Brandes, Raleigh, NC (US);
Assignee:
Cree, Inc., Durham, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract
A light emitting device (LED) includes a broadband LED chip having a multi-quantum well active region including alternating active and barrier layers. The active layers respectively include different thicknesses and/or different relative concentrations of at least two elements of a semiconductor compound, and are respectively configured to emit light of different emission wavelengths that define an asymmetric spectral distribution over a wavelength range within a visible spectrum. Related devices are also discussed.