Patents by Inventor Steven Mackel

Steven Mackel 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).

  • Ceramic wavelength converter and LED light source containing same
    Patent number: 8829777
    Abstract: There is herein described an LED light source comprising an LED and a ceramic wavelength converter positioned to receive at least a portion of the light emitted by said LED, said ceramic wavelength converter converting at least a portion of the light emitted by said LED into light of a different wavelength, said ceramic wavelength converter comprising a chlorosilicate phosphor and having a density at least about 90% of theoretical density. The chlorosilicate phosphor is preferably a green-emitting Ca8Mg(SiO4)4Cl2:Eu2+ phosphor.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 9, 2014
    Assignee: OSRAM Sylvania Inc.
    Inventors: George C. Wei, Steven Mackel, Madis Raukas, Frank Jermann, Tim Fiedler
  • Ceramic Wavelength Converter and LED Light Source Containing Same
    Publication number: 20120075834
    Abstract: There is herein described an LED light source comprising an LED and a ceramic wavelength converter positioned to receive at least a portion of the light emitted by said LED, said ceramic wavelength converter converting at least a portion of the light emitted by said LED into light of a different wavelength, said ceramic wavelength converter comprising a chlorosilicate phosphor and having a density at least about 90% of theoretical density. The chlorosilicate phosphor is preferably a green-emitting Ca8Mg(SiO4)4Cl2:Eu2+ phosphor.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 29, 2012
    Inventors: George C. Wei, Steven Mackel, Madis Raukas, Frank Jermann, Tim Fiedler