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Beam angle sensor in virtual/augmented reality system

  • US 10,649,218 B2
  • Filed: 11/13/2019
  • Issued: 05/12/2020
  • Est. Priority Date: 01/12/2016
  • Status: Active Grant
First Claim
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1. A display system comprising:

  • a projection assembly configured to emit light;

    a sensing assembly optically coupled to the projection assembly and configured to measure at least one parameter of light incident thereon;

    a control subsystem in communication with the projection assembly and the sensing assembly, the control subsystem configured to;

    generate image data defining a color, intensity, and location of a pixel of virtual content;

    cause the projection assembly to emit light corresponding to the pixel as defined by the image data;

    receive measurement data from the sensing assembly indicating at least one parameter of the light emitted by the projection assembly;

    modify the image data based at least in part on the measurement data received from the sensing assembly; and

    cause the projection assembly to emit light corresponding to the pixel as defined by the modified image data.

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