Patents by Inventor Edward Haidar

Edward Haidar 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).

  • Planckian and non-planckian dimming of solid state light sources
    Patent number: 9271362
    Abstract: Systems and methods of Planckian and non-Planckian dimming of solid state light sources are disclosed. For a given first range of correlated color temperature values on the 1931 CIE Chromaticity Diagram, the current through a plurality of solid state light sources is adjusted so that the light output thereby follows the correlated color temperature values relating to the black body curve over that given first range. For a given second range of correlated color temperature values, the current through a plurality of solid state light sources is adjusted so that the light output thereby deviates from black body curve and instead relates to a series of coordinates that tracks a line between the curve and a color point for one of the solid state light sources.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: February 23, 2016
    Assignee: OSRAM SYLVANIA INC.
    Inventors: Qi Dai, Ming Li, Robert Harrison, Edward Haidar
  • PLANCKIAN AND NON-PLANCKIAN DIMMING OF SOLID STATE LIGHT SOURCES
    Publication number: 20150327343
    Abstract: Systems and methods of Planckian and non-Planckian dimming of solid state light sources are disclosed. For a given first range of correlated color temperature values on the 1931 CIE Chromaticity Diagram, the current through a plurality of solid state light sources is adjusted so that the light output thereby follows the correlated color temperature values relating to the black body curve over that given first range. For a given second range of correlated color temperature values, the current through a plurality of solid state light sources is adjusted so that the light output thereby deviates from black body curve and instead relates to a series of coordinates that tracks a line between the curve and a color point for one of the solid state light sources.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 12, 2015
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Qi Dai, Ming Li, Robert Harrison, Edward Haidar