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:
Aug. 12, 2014
Filed:
May. 07, 2012
Antony Paul Van DE Ven, Hong Kong, CN;
Wai Kwan Chan, Hong Kong, CN;
Chin Wah Ho, Hong Kong, CN;
Gerald H. Negley, Durham, NC (US);
Dong LU, Cary, NC (US);
Paul Kenneth Pickard, Morrisville, NC (US);
Antony Paul Van De Ven, Hong Kong, CN;
Wai Kwan Chan, Hong Kong, CN;
Chin Wah Ho, Hong Kong, CN;
Gerald H. Negley, Durham, NC (US);
Dong Lu, Cary, NC (US);
Paul Kenneth Pickard, Morrisville, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
A lighting device comprising a solid state light emitter and a light mixing element, in which at least ten of light emitted by the emitter that enters the mixing element is reflected within the mixing element, and the mixing element is not larger than 16 mm. Also, a lighting device comprising an emitter and a mixing element comprising first and second regions. Also, a lighting device comprising a light emitter and a mixing element, in which a light exit region of the mixing element has a surface area between about 50% to about 300% of a surface area of a light entrance region of the mixing element. Also, a lighting device comprising a light emitter, a mixing element and a light output shaping element which defines an exit aperture having a dimension that is at least three times a largest dimension of the first light mixing element.