Structured light generator and object recognition apparatus including the same
AssigneesSamsung Electronics Co., Ltd., California Institute of Technology
InventorsSeunghoon HAN, Ali NAQAVI, Harry ATWATER
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Abstract
A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
Claims20
A structured light generator comprising:
- a light source configured to emit light;
- and
- a first meta optical device comprising a first metasurface comprising nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source,
- wherein the first metasurface is configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
A three-dimensional (3D) object recognition apparatus comprising:
- a structured light generator comprising:
- a light source configured to emit light;
- and
- a first meta optical device comprising a first metasurface comprising nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source,
- wherein the first metasurface is configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light, and wherein the structured light generator is configured to radiate the structured light in a predetermined pattern toward an object;
- a sensor configured to receive the structured light reflected from the object;
- and
- a processor configured to analyze a shape or motion of the object by comparing pattern changes in the structured light radiated by the structured light generator and the structured light received by the sensor.
A structured light system, comprising:
- a light source configured to emit light, the light source comprising a light exit surface through which the light exits the light source, the light exit surface being arranged in a plane;
- and
- nanostructures protruding in a direction perpendicular to the plane,
- wherein a height of the nanostructures in the direction perpendicular to the plane is less than a wavelength of the emitted light.
Dependencies are inferred from the claim text.