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Non-telecentric emissive micro-pixel array light modulators and methods of fabrication thereof

  • US 10,578,882 B2
  • Filed: 12/27/2016
  • Issued: 03/03/2020
  • Est. Priority Date: 12/28/2015
  • Status: Active Grant
First Claim
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1. A non-telecentric emissive micro-pixel array light modulator comprising:

  • a control layer;

    pixelated, multiple color emission III/V semiconductor layers stacked above the control layer and controllable from the control layer to emit at least partially collimated, pixelated light that is modulated chromatically and temporally; and

    a directional modulation layer of optical elements above the pixelated multiple color emission III/V semiconductor layers, each optical element to directionally modulate light coupled onto it from a corresponding pixel to a respective direction relative to an axis perpendicular to the pixelated, multiple color emission III/V semiconductor layers;

    wherein the directional modulation layer is comprised of pixel level refractive micro optical elements in the form of de-centered micro lenses of successive layers of dielectric materials with different indexes of refraction.

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