Patents by Inventor Edward R. Kraft

Edward R. Kraft 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).

  • Flat panel luminaire having embedded light guides
    Publication number: 20040042196
    Abstract: A flat panel luminaire having embedded irregular tetrahedrally-shaped light guides for controlled light extraction is provided. The luminaire includes a light source, which can be remote, an optical light pipe, and a light-emitting panel. The light-emitting panel includes a tapered light-injection zone joined to a light-emitting zone having the embedded irregular tetrahedrally-shaped light guides. The surface and cross-sectional areas of the light guides gradually increase as the light guides extend away from the tapered zone. Methods of illuminating an area using such light guides are also provided.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 4, 2004
    Applicant: Edward Robert Kraft
    Inventor: Edward R. Kraft