Patents by Inventor P. J. Schmidt

P. J. Schmidt 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).

  • Phosphor converted light emitting device
    Publication number: 20040256974
    Abstract: A system includes a radiation source capable of emitting first light and a fluorescent material capable of absorbing the first light and emitting second light having a different wavelength than the first light. The fluorescent material is a phosphor having the formula (Lu1-x-y-a-bYxGdy)3(Al1-zGaz)5O12:CeaPrb wherein 0<x<1, 0<y<1, 0<z≦0.1, 0<a≦0.2 and 0<b≦0.1. In some embodiments, the (Lu1-x-y-a-bYxGdy)3(Al1-zGaz)5O12:CeaPrb is combined with a second fluorescent material capable of emitting third light. The second fluorescent material may be a red-emitting phosphor, such that the combination of first, second, and third light emitted from the system appears white.
    Type: Application
    Filed: February 23, 2004
    Publication date: December 23, 2004
    Applicant: Lumileds Lighting, U.S., LLC
    Inventors: Regina B. Mueller-Mach, Gerd O. Mueller, T. Juestel, W. Busselt, P. J. Schmidt, W. Mayr