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:
Jul. 18, 2017
Filed:
Sep. 24, 2009
Antony P. Van DE Ven, Hong Kong, HK;
Gerald H. Negley, Chapel Hill, NC (US);
Michael James Harris, Cary, NC (US);
Paul Kenneth Pickard, Morrisville, NC (US);
Joseph Paul Chobot, Morrisville, NC (US);
Terry Given, Papakura, NZ;
Antony P. van de Ven, Hong Kong, HK;
Gerald H. Negley, Chapel Hill, NC (US);
Michael James Harris, Cary, NC (US);
Paul Kenneth Pickard, Morrisville, NC (US);
Joseph Paul Chobot, Morrisville, NC (US);
Terry Given, Papakura, NZ;
Cree, Inc., Durham, NC (US);
Abstract
A lighting apparatus includes a string with a plurality of serially-connected light emitting device sets, each set comprising at least one light emitting device. The apparatus further includes at least one controllable bypass circuit configured to variably bypass current around at least one light emitting device of a set of the plurality of light emitting device sets responsive to a control input. The control input may include, for example, a temperature input, a string current sense input and/or an adjustment input. The control input may be varied, for example, to adjust a color point of the string.