Patents by Inventor Dale A. Wennagel

Dale A. Wennagel 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: 5294940
    Abstract: A pulsed laser optical display device includes a source of an image bit map. Activation signals are generated from the image bit map, and used to control the firing of laser diodes arrange in banks and oriented so that the resulting beams impinge upon a rotating polygonal mirror which reflects each beam to impinge on a projection surface, the rotating mirror serving to sweep the beams over the projection surface. Rotation of the mirror is synchronized with activation of the the diodes, so that an image corresponding to the bit map is displayed. Both front-projection and rear-projection surfaces, such as an automobile instrument panel and a heads-up display, can be illuminated simultaneously.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: March 15, 1994
    Assignee: Dale A. Wennagel
    Inventors: Dale A. Wennagel, Michael D. Tulloch