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US 2020/0051263 A1Published application
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.
Claims18
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 nanostructures of the first metasurface are shaped and arranged to generate the structured light of a pattern in which bright and dark spots are mathematically coded to uniquely designate respective angle direction location coordinates.
2 more elements
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, the structured light generator is configured to radiate the structured light in a predetermined pattern toward an object, and the nanostructures of the first metasurface are shaped and arranged to generate the structured light of a pattern in which bright and dark spots are mathematically coded to uniquely designate respective angle direction location coordinates;
- 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.
5 more elements
Dependencies are inferred from the claim text.