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.

Date of Patent:
May. 28, 2013

Filed:

Mar. 25, 2010
Applicants:

John K. Roberts, Grand Rapids, MI (US);

Keith J. Vadas, Coopersville, MI (US);

Inventors:

John K. Roberts, Grand Rapids, MI (US);

Keith J. Vadas, Coopersville, MI (US);

Assignee:

Cree, Inc., Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods of controlling a backlight unit including a plurality of solid state light emitting devices include receiving a request to set a color point of the backlight unit at a requested color point, and determining if the requested color point is within an acceptable range. In response to the requested color point being outside the acceptable range, a modified color point is selected in response to the requested color point, and a color point of the backlight unit is set at the modified color point. Corresponding solid state lighting units are also disclosed.


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