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Display apparatus

  • US 5,266,930 A
  • Filed: 11/28/1990
  • Issued: 11/30/1993
  • Est. Priority Date: 11/29/1989
  • Status: Expired due to Term
First Claim
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1. A display apparatus for use with a helmet which has a front opening formed therein and has a transparent shield mounted thereon so as to cover said front opening, said display apparatus comprising:

  • a display unit for displaying information thereon, said display unit being disposed on an inner side of a chin portion of said helmet such that display light therefrom is reflected toward a visual point position on an inner face of said shield to allow an observer to visually observe a virtual image of the display information of said display unit from within said helmet through said shield;

    means for supporting said display unit for pivotal motion about two perpendicular axes which intersect each other, said supporting means including a support shaft fixedly connected to said display unit, and holding arms fixedly attached to an interior of the chin portion and adjustably connected to the support shaft; and

    manually operable means for fixing said display unit about the two perpendicular axes with respect to said helmet, said manually operable means including an adjusting shaft connected to said display unit for effecting manual adjustment of said display unit about the two perpendicular axes, and adjustment locking means connected to the adjustment shaft for locking an adjusted position of said display unit.

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