Patents by Inventor Wilbur C. Stewart

Wilbur C. Stewart 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).

  • Illumination system for a display device
    Patent number: 4924356
    Abstract: An illumination system for a display device includes a plurality of lenslets which provide partially collimated light with respect to at least one axis of the display. A light box provides uncollimated light to the lenslets. The light box includes a reflector having apertures which transmit light from the light box to the lenslets. The internal surfaces of the light box and the reflector are highly and diffusely reflective and a high percentage of the light reaches the lenslets.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: May 8, 1990
    Assignee: General Electric Company
    Inventors: Park French, Wilbur C. Stewart