Patents by Inventor Harry W. Giehll

Harry W. Giehll 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).

  • Liquid crystal light value color projector
    Patent number: 4650286
    Abstract: A compact, full color, light projection system using a liquid crystal light valve (LCLV) and a unique combination of optical devices. The LCLV operates to modulate a light beam which has been polarized by one of the optical devices. The modulated light beam is converged and registered by other optical devices to form the output image.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: March 17, 1987
    Assignee: Hughes Aircraft Company
    Inventors: Nobuo J. Koda, William P. Bleha, Jr., Harry W. Giehll, Stephen J. Reinsch, Paul F. Robusto