Patents by Inventor William E. McLean

William E. McLean 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).

  • Helmet mounted display having dual interchangeable optical eyepieces
    Patent number: 4969714
    Abstract: Helmet mounted display apparatus for use in aircraft and rotorcraft includes an image source for generating images that are projected into the pilot's forward field of view by a portion of relay optics that are common to both day and night viewing and interchangeable optical eyepieces, one for daytime viewing and one for nighttime viewing.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: November 13, 1990
    Assignee: United Technologies Corporation
    Inventors: Joseph T. Fournier, Jr., Stephen J. Smith, Harvey A. Smith, Harry R. McKinley, William E. McLean
  • Direct incorporation of night vision in a helmet mounted display
    Patent number: 4961626
    Abstract: Helmet mounted display apparatus for use in aircraft and rotorcraft includes an first image source for generating images comprising pilotage symbol information, a second image source for sensing and generating images of the exterior scene, and relay optical components that optically superimpose the two images together and subsequently project the superimposed image into the observer's forward field of view.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: October 9, 1990
    Assignee: United Techologies Corporation
    Inventors: Joseph T. Fournier, Jr., Stephen J. Smith, Harry R. McKinley, William E. McLean