Patents by Inventor Jean Paul Freyssinier

Jean Paul Freyssinier 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).

  • Patent number: 7703942
    Abstract: A light emitting apparatus having a light source for emitting short wavelength radiation and an optic device configured to receive the radiation emitted from the light source. A device directs at least some of the short wavelength radiation emitted from the light source into the optic device and a down conversion material receives at least some of the short wavelength radiation directed into the optic device in one spectral region and emits the radiation in another spectral region.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: April 27, 2010
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Nadarajah Narendran, Jean Paul Freyssinier, Yimin Gu
  • Publication number: 20080054281
    Abstract: A light emitting apparatus having a light source for emitting short wavelength radiation and an optic device configured to receive the radiation emitted from the light source. A device directs at least some of the short wavelength radiation emitted from the light source into the optic device and a down conversion material receives at least some of the short wavelength radiation directed into the optic device in one spectral region and emits the radiation in another spectral region.
    Type: Application
    Filed: December 20, 2006
    Publication date: March 6, 2008
    Inventors: Nadarajah Narendran, Jean Paul Freyssinier, Yimin Gu
  • Publication number: 20080030993
    Abstract: A light emitting apparatus includes a source of light for emitting light; a down conversion material receiving the emitted light, and converting the emitted light into transmitted light and backward transmitted light; and an optic device configured to receive the backward transmitted light and transfer the backward transmitted light outside of the optic device. The source of light is a semiconductor light emitting diode, a laser diode (LD), or a resonant cavity light emitting diode (RCLED). The down conversion material includes one of phosphor or other material for absorbing light in one spectral region and emitting light in another spectral region. The optic device, or lens, includes light transmissive material.
    Type: Application
    Filed: May 5, 2005
    Publication date: February 7, 2008
    Inventors: Nadarajah Narendran, Yimin Gu, Jean Paul Freyssinier