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:
Mar. 25, 2008
Filed:
Mar. 07, 2006
Alexei A. Erchak, Cambridge, MA (US);
Elefterios Lidorikis, Ioannina, GR;
Michael Lim, Cambridge, MA (US);
Nikolay I. Nemchuck, North Andover, MA (US);
JO A. Venezia, Sunnyvale, CA (US);
Alexei A. Erchak, Cambridge, MA (US);
Elefterios Lidorikis, Ioannina, GR;
Michael Lim, Cambridge, MA (US);
Nikolay I. Nemchuck, North Andover, MA (US);
Jo A. Venezia, Sunnyvale, CA (US);
Luminus Devices, Inc., Billerica, MA (US);
Abstract
Devices, such as light-emitting devices (e.g., LEDs), and methods associated with such devices are provided. A light-emitting device designed to emit light may include an interface through which emitted light passes therethrough, wherein the interface has a dielectric function that varies spatially according to a pattern. The pattern may be arranged to provide anisotropic light emission characterized by an emission pattern on a far-field projection plane substantially parallel to the interface, wherein a first total light intensity along a first axis on the projection plane is at least 20% greater than a second total light intensity along a second axis on the projection plane. Alternatively, or additionally, the pattern may be arranged to provide anisotropic light emission characterized by a first total light emission on a first plane that is at least 20% greater than a second total light emission on a second plane, wherein the first and second planes are perpendicular to the interface, and wherein the first and second planes are also perpendicular to each other.