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Display apparatus and optical apparatus

  • US 10,642,040 B2
  • Filed: 03/06/2015
  • Issued: 05/05/2020
  • Est. Priority Date: 03/17/2014
  • Status: Active Grant
First Claim
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1. An optical apparatus, comprising:

  • a mounting frame configured to be mounted onto a head of an observer;

    an image display device configured to be attached to the mounting frame;

    an imaging device configured to be attached to the mounting frame to acquire an image of a spatial area within a field of view of the observer;

    a light dimming device configured to control the amount of outside light that comes from the outside to the field of view of the observer;

    a controller configured to change light transmittance of at least a first region and a second region on the light dimming device based on a signal for displaying an image on the image display device, wherein the light transmittance of the first region is different from the light transmittance of the second region; and

    a transmitted-light illumination measurement sensor configured to measure light that passes through the dimming device from the outside environment,wherein the controller is configured to change a difference in light transmittance between the first region and the second region of the light dimming device in response to the signal for displaying the image on the image display device, before the image is displayed.

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