Patents by Inventor Gaylon R. Kornfuerhrer

Gaylon R. Kornfuerhrer 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: 5050946
    Abstract: A light pipe used for backlighting liquid crystal displays has a planar front surface and a stairstepped or faceted back surface. Light is injected from the ends of the light pipe from cold or hot cathode, apertured, fluorescent lamps. The cold cathode lamps are preferably insulated to raise their operating temperature. The back surface has a series of planar portions parallel to the front surface connected by facets, which are angled so that the injected light reflects off the facets and through the front surface. A reflector having a planar, highly reflective, highly scattering surface or a sawtoothed or grooved upper surface is located adjacent to and parallel with the light pipe back surface to reflect light escaping from the back surface back through the light pipe to exit the front surface. The axis of grooves is preferably slightly skewed from the facet axis to reduce moire pattern development.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: September 24, 1991
    Assignee: Compaq Computer Corporation
    Inventors: Kevin J. Hathaway, Richard M. Knox, Jr., Douglas A. Arego, Gaylon R. Kornfuerhrer