Patents by Inventor Stephane MELANSON

Stephane MELANSON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Operation of a LED lighting system at a target output color using a color sensor
    Patent number: 9338851
    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.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: May 10, 2016
    Assignee: INSTITUT NATIONAL D'OPTIQUE
    Inventors: Stephane Melanson, Marco Michele Sisto
  • OPERATION OF A LED LIGHTING SYSTEM AT A TARGET OUTPUT COLOR USING A COLOR SENSOR
    Publication number: 20150296589
    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.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 15, 2015
    Inventors: Stephane MELANSON, Marco Michele SISTO