Industry Patents

Patent: 9338851

Operation of a LED Lighting System at a Target Output Color Using a Color Sensor

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Patent Number:	9338851
Title:	Operation of a LED Lighting System at a Target Output Color Using a Color Sensor
Abstract:	A method for operating a LED lighting system at a target output color is provided. The LED system includes a color sensor and three or more LED emitters each operable at a controllable emitter drive setting. The method provides at least one calibration matrix defining a relationship between measurements obtained from the color sensor, represented by sensor color point coordinates, and absolute color point coordinates in an absolute color space. In some embodiments, a calibration matrix defining a non-linear relationship between the two color spaces is provided. In other embodiments, individual calibration matrices are provided for each LED emitter.
Country of Issue:	US
First Named Inventor:	Melanson, Sisto
Assignee:	Institut National D'Optique
Continuation or Divisional of:
International Classification:	H05B 33/08
US Classification:	H05B 33/0869
Issue Date:	05-10-2016
Filing Date:	04-10-2014
Application :	14/250084
Notes:
Link to Patent at freepatentsonline.com:	9338851 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	9338851 at Google Patents

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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