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Scanner-illuminated LCOS projector for head mounted display

  • US 10,642,045 B2
  • Filed: 11/01/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 04/07/2017
  • Status: Active Grant
First Claim
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1. An optical display system configured to show images within a field of view (FOV), comprising:

  • a waveguide operable as a near-eye display comprising one or more diffractive optical elements (DOEs) including an in-coupling DOE configured for in-coupling image light to the waveguide; and

    a light engine comprising a micro-display, illumination optics, and image optics, in which the micro-display projects the image light into the waveguide at the in-coupling DOE,wherein the illumination optics includean illumination light source, comprising one of laser or LED (light emitting diode), and a MEMS (micro-electro mechanical system) scanner configured for raster scanning light from the illumination light source to illuminate the micro-display.

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