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Laser-etched 3D volumetric display

  • US 9,781,411 B2
  • Filed: 09/15/2016
  • Issued: 10/03/2017
  • Est. Priority Date: 09/15/2015
  • Status: Active Grant
First Claim
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1. A three-dimensional volumetric display comprising:

  • a substantially transparent scattering volume containing a three-dimensional array of scattering elements, the three-dimensional array of scattering elements arranged in a plurality of scattering planes tilted relative to the first face of the scattering volume;

    wherein the three-dimensional array comprises an array of voxel groups, each voxel group comprising a plurality of directional scattering elements positioned such that each voxel group scatters light omnidirectionally;

    wherein each scattering element is a cavity in the scattering volume formed via laser sub-surface engraving;

    a light source that generates a two-dimensional image output comprising a set of image slices;

    wherein the image output is scattered by the scattering volume to create a three-dimensional volumetric image within the scattering volume;

    wherein each slice of set of image slices is incident upon a unique scattering plane; and

    an onboard computer that receives a three-dimensional image dataset, determines a set of slice partitions of the three-dimensional image dataset according to scattering parameters of the scattering volume, and transforms the three-dimensional image dataset into the two-dimensional image output according to the slice partitions;

    wherein the scattering parameters describe a spatial relationship between the light source and the array of scattering elements.

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