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Advanced compact head up display

  • US 7,095,562 B1
  • Filed: 08/04/2005
  • Issued: 08/22/2006
  • Est. Priority Date: 09/27/2004
  • Status: Active Grant
First Claim
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1. A head up display system for a vehicle, comprising:

  • a compact image source for projecting an image, said compact image source being foldable up into a cockpit ceiling of the vehicle; and

    a combiner for reflecting said projected image with optical power toward an observer for observation, said combiner being positioned so that said observer, in a line of sight, sees a visual exterior view of an outside scene through said combiner and said projected image in said combiner, wherein said combiner comprises a meniscus combiner, comprising;

    a meniscus lens;

    a multi-layer dichroic coating formed on a first surface of said meniscus lens; and

    ;

    an anti-reflection coating formed on a second, opposite surface of said meniscus lens.

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