Patents by Inventor Nathan A. Pfaff

Nathan A. Pfaff 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).

  • White light source employing a III-nitride based laser diode pumping a phosphor
    Patent number: 9611987
    Abstract: A white light source employing a III-nitride based laser diode pumping one or more phosphors. The III-nitride laser diode emits light in a first wavelength range that is down-converted to light in a second wavelength range by the phosphors, wherein the light in the first wavelength range is combined with the light in the second wavelength range to create highly directional white light. The light in the first wavelength range comprises ultraviolet, violet, blue and/or green light, while the light in the second wavelength range comprises green, yellow and/or red light.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: April 4, 2017
    Assignee: The Regents of the University of California
    Inventors: Kathryn M. Kelchner, James S. Speck, Nathan A. Pfaff, Steven P. DenBaars
  • WHITE LIGHT SOURCE EMPLOYING A III-NITRIDE BASED LASER DIODE PUMPING A PHOSPHOR
    Publication number: 20140126200
    Abstract: A white light source employing a III-nitride based laser diode pumping one or more phosphors. The III-nitride laser diode emits light in a first wavelength range that is down-converted to light in a second wavelength range by the phosphors, wherein the light in the first wavelength range is combined with the light in the second wavelength range to create highly directional white light. The light in the first wavelength range comprises ultraviolet, violet, blue and/or green light, while the light in the second wavelength range comprises green, yellow and/or red light.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 8, 2014
    Inventors: Kathryn M. Kelchner, James S. Speck, Nathan A. Pfaff, Steven P. DenBaars