Patents by Inventor Gregory F. Frankiewicz

Gregory F. Frankiewicz 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).

  • Compact, high-efficiency illumination system for video-imaging devices
    Publication number: 20040174709
    Abstract: An illumination system for a video-imaging device has a light source and a collector of light from the light source. The collector is formed according to the principles of non-imaging optics and receives a portion of the light from the light source. The collector is configured to reduce the angular distribution of the collected light from the light source to match the requirements of a digital pixelation device. This system is highly efficient and compact compared to systems based on imaging optics, and can eliminate some of the components required for systems based on imaging optics. More extensive illumination systems are also disclosed.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 9, 2004
    Inventors: Roger F. Buelow, John M. Davenport, Gregory F. Frankiewicz, Wayne R. Hellman, Juris Sulcs, Raymond A. Buchina