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. 07, 2013
Filed:
Aug. 24, 2011
Michael Lim, Cambridge, MA (US);
David Doyle, Somerville, MA (US);
Alexander L Pokrovskiy, Burlington, MA (US);
Alexei a Erchak, Cambridge, MA (US);
Gianni Taraschi, Somerville, MA (US);
Nikolay I Nemchuk, North Andover, MA (US);
Michael Lim, Cambridge, MA (US);
David Doyle, Somerville, MA (US);
Alexander L Pokrovskiy, Burlington, MA (US);
Alexei A Erchak, Cambridge, MA (US);
Gianni Taraschi, Somerville, MA (US);
Nikolay I Nemchuk, North Andover, MA (US);
Rambus International Ltd., Grand Cayman, KY;
Abstract
Illumination assemblies, components, and related methods are described. An illumination assembly can include at least one solid state light-emitting device, an emission surface through which light is emitted, and a wavelength converting material that wavelength converts at least some light emitted by the solid state light-emitting device. The wavelength converting material can have a first density per unit area of the emission surface at a first location and a second density per unit area of the emission surface at a second location, wherein the second density is substantially different from the first density, and wherein the density per unit area is defined with a 1×1 cmaveraging area. Another illumination assembly can include a light guide configured to receive light emitted by a solid state light-emitting device. The light guide can have a length along which received light propagates and an emission surface substantially parallel to the length of the light guide and through which light is emitted. A wavelength converting material can have a density per unit area of the emission surface that substantially increases along the length of the light guide.