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Head-mounted image display apparatus

  • US 5,825,340 A
  • Filed: 08/21/1996
  • Issued: 10/20/1998
  • Est. Priority Date: 10/28/1992
  • Status: Expired due to Fees
First Claim
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1. A head mounted image display apparatus comprising:

  • first image display means directing a first image toward a user of the image display apparatus;

    second image display means directing a second image toward the user of the image display apparatus;

    display blackout means active to control a selected one of said first or second image display means to display a black image surface according to engagement thereof;

    display control means operable such that, when said display blackout means is engaged, one of said first and second image display means which does not display said black surface image is active to display a test pattern;

    first adjusting means for adjusting an optical condition of said first image display means; and

    second adjusting means for adjusting an optical condition of said second display means.

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