Head Up Display Patents (Class 359/13)
Holograph on curved substrate (Class 359/14)
  • Display device for ergonomic sights with a large field of observation
    Patent number: 5050962
    Abstract: A display device for an ergonomic helmet-mounted sight with a large field of observation, including a collimation and combination optical unit joined to an image generator located on the same side as an observation point relative to the optical unit. The optical unit includes a holographic or dichroic mirror and a semitransparent plane mirror included in a transparent plate with parallel faces.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: September 24, 1991
    Assignee: Thomson-CSF
    Inventors: Laurent Monnier, Jean-Pierre Gerbe
  • LED array polarized image source/0 degree hologram virtual image head up display
    Patent number: 5044709
    Abstract: A holographic display system having a dynamic image source including selectively activated light emitting diodes for providing spectrally narrowband and narrow beam imaging illumination through an apertured mask, and further having a mirror reflection hologram for reflecting the image to provide an observable virtual image. The image source further includes a polarizer and an optional diffuser.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: September 3, 1991
    Assignee: Hughes Aircraft Company
    Inventors: Ronald T. Smith, Mark McDonald