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:
Apr. 19, 2011
Filed:
Sep. 04, 2007
Peter Andrews, Durham, NC (US);
Thomas G. Coleman, Pittsboro, NC (US);
James Ibbetson, Goleta, CA (US);
Michael Leung, Port Hueneme, CA (US);
Gerald H. Negley, Carrboro, NC (US);
Eric Tarsa, Goleta, CA (US);
Peter Andrews, Durham, NC (US);
Thomas G. Coleman, Pittsboro, NC (US);
James Ibbetson, Goleta, CA (US);
Michael Leung, Port Hueneme, CA (US);
Gerald H. Negley, Carrboro, NC (US);
Eric Tarsa, Goleta, CA (US);
Cree, Inc., Durham, NC (US);
Abstract
Packaged semiconductor light emitting device are provided including a reflector having a lower sidewall portion defining a reflective cavity. A light emitting device is positioned in the reflective cavity. A first quantity of cured encapsulant material having a first index of refraction is provided in the reflective cavity including the light emitting device. A second quantity of cured encapsulant material having a second index of refraction, different from the first index of refraction, is provided on the first quantity of cured encapsulant material. The first and second index of refraction are selected to provide a buried lens in the reflective cavity.