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:
Aug. 23, 2016
Filed:
Aug. 20, 2012
Juanita N. Kurtin, Hillsboro, OR (US);
Juanita N. Kurtin, Hillsboro, OR (US);
Pacific Light Technologies Corp., Portland, OR (US);
Abstract
Lighting devices having highly luminescent quantum dots are described. In an example, a lighting apparatus includes a housing structure or a substrate. The lighting apparatus also includes a light emitting diode supported within the housing structure or disposed on the substrate, respectively. The lighting apparatus also includes a light conversion layer disposed above the light emitting diode. The light conversion layer includes a plurality of quantum dots. Each quantum dot includes an anisotropic nanocrystalline core having a first semiconductor material and having an aspect ratio between, but not including, 1.0 and 2.0. Each quantum dot also includes a nanocrystalline shell having a second, different, semiconductor material at least partially surrounding the anisotropic nanocrystalline core.