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:
May. 25, 2010
Filed:
Dec. 07, 2007
Jennifer Gillies, Petersburg, NY (US);
David Socha, Glenmont, NY (US);
Kwang-ohk Cheon, Holland, PA (US);
Michael Locasio, Clifton Park, NY (US);
Jennifer Gillies, Petersburg, NY (US);
David Socha, Glenmont, NY (US);
Kwang-Ohk Cheon, Holland, PA (US);
Michael LoCasio, Clifton Park, NY (US);
Evident Technologies, Inc., Troy, NY (US);
Abstract
Light-emitting devices are provided that incorporate one or more underlying LED chips or other light sources and a layer having one or more populations of nanoparticles disposed over the light source. The nanoparticles may absorb some light emitted by the underlying source, and re-emit light at a different level. By varying the type and relative concentration of nanoparticles, different emission spectra may be achieved. White light and specialty-color emission may be achieved. Devices also may include multiple LED chips, with nanoparticles disposed over one or more underlying chips in an array.