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Optical configurations for head-worn see-through displays

  • US 10,877,270 B2
  • Filed: 11/10/2015
  • Issued: 12/29/2020
  • Est. Priority Date: 06/05/2014
  • Status: Active Grant
First Claim
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1. An optical system configured for use with a wearable head device, the optical system comprising:

  • a first combiner comprising a first surface and a second surface, the first combiner adapted to visually present content such that a surrounding environment is visible to a user of the wearable head device through the first combiner while the content is presented;

    a second combiner comprising a first surface and a second surface, the second combiner adapted to visually present content such that the surrounding environment is visible to the user of the wearable head device through the second combiner while the content is presented;

    one or more light sources, the one or more light sources adapted to project image light onto the first surface of the first combiner and the first surface of the second combiner,wherein the first combiner is further adapted to;

    reflect, toward a first eye of the user, a first portion of the image light projected by the one or more light sources,receive first ambient light at the second surface of the first combiner,transmit, toward the first eye of the user, a first portion of the first ambient light, andreflect a second portion of the first ambient light; and

    wherein the second combiner is further adapted to;

    reflect, toward a second eye of the user, a second portion of the image light projected by the one or more light sources,receive second ambient light at the second surface of the second combiner,transmit, toward the second eye of the user, a first portion of the second ambient light, andreflect a second portion of the second ambient light;

    a first camera configured to capture the second portion of first the ambient light reflected from the second surface of the first combiner; and

    a second camera configured to capture the second portion of the second ambient light reflected from the second surface of the second combiner.

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