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. 27, 2007
Filed:
Sep. 29, 2005
Alexei A. Erchak, Cambridge, MA (US);
Michael Lim, Cambridge, MA (US);
Elefterios Lidorikis, Newton, MA (US);
JO A. Venezia, Boston, MA (US);
Michael G. Brown, Tyngsboro, MA (US);
Robert F. Karlicek, Jr., Chelmsford, MA (US);
Alexei A. Erchak, Cambridge, MA (US);
Michael Lim, Cambridge, MA (US);
Elefterios Lidorikis, Newton, MA (US);
Jo A. Venezia, Boston, MA (US);
Michael G. Brown, Tyngsboro, MA (US);
Robert F. Karlicek, Jr., Chelmsford, MA (US);
Luminus Devices, Inc., Woburn, MA (US);
Abstract
A light-emitting device is provided. The device may include a thermally conductive region in contact with a wavelength-converting region (e.g., a phosphor region). The thermally conductive region may aid in the extraction of heat resulting from light absorption in the wavelength-converting region, which, if excessive, may impair device operation. The presence of a thermally conductive region can enable devices including wavelength-converting regions to operate even at high power levels (e.g., light generated by the light-generating region and/or by the light-emitting device having a total power greater than 0.5 Watts) for long operating lifetimes (e.g., greater than 2,000 hours).