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Image display apparatus

  • US 5,751,494 A
  • Filed: 12/18/1996
  • Issued: 05/12/1998
  • Est. Priority Date: 12/18/1995
  • Status: Expired due to Fees
First Claim
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1. An image display apparatus comprising at least two image display devices for displaying images, and at least two ocular optical systems for projecting, respectively, the images formed by said at least two image display devices as enlarged virtual images in front of one common eyeball of an observer and for leading the projected images to said eyeball,wherein, when said at least two ocular optical systems are defined as a first ocular optical system and a second ocular optical system in order from an observer side, said first ocular optical system and second ocular optical system each have at least one reflecting surface of positive power, said reflecting surface being tilted or decentered with respect to an observer'"'"'s visual axis, said at least one reflecting surface of positive power in said first ocular optical system being a semitransparent surface which reflects a part of incident light and transmits a part of it, said first ocular optical system being disposed on a side of said second ocular optical system which is closer to said eyeball in a direction of said observer'"'"'s visual axis, said second ocular optical system being disposed on a side of said first ocular optical system which is remote from said eyeball in the direction of said observer'"'"'s visual axis.

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