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Head mounted display and viewing system using a remote retro-reflector and method of displaying and viewing an image

  • US 5,606,458 A
  • Filed: 02/03/1995
  • Issued: 02/25/1997
  • Est. Priority Date: 08/24/1994
  • Status: Expired due to Term
First Claim
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1. A head mounted display system for providing images for viewing by at least one eye of a viewer, comprisinga mounting structure for mounting on the head of a viewer,a liquid crystal display image source carried by the mounting structure for providing images for viewing by one eye of a viewer,a retro-reflector remotely located relative to said image source and the viewer and having a characteristic of providing a conjugate optical path leading to said eye of a viewer,focusing optics carried by the mounting structure in position to receive light from the image source to form a real image,said mounting structure including means for holding said beamsplitter and focusing optics with respect to the head of a viewer to orient said focusing optics and said beamsplitter with respect to said eye of the viewer such that said focusing optics and said beamsplitter are in substantially the same relation to each other as the pupil of said eye of a viewer stands in relation to said beamsplitter to permit said eye to view an image from said image source when light representing that image is reflected in said conjugate optical path.

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