Metalens and optical apparatus including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsHyunsung Park, Seunghoon Han, Hyeonsoo Park, Changgyun Shin
Life of this patent
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Abstract
Provided is a metalens including a first metasurface including a plurality of first nanostructures disposed based on a first shape distribution, and a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface including a plurality of second nanostructures disposed based on a second shape distribution, wherein the metalens provides chromatic aberration for light in the predetermined wavelength band.
Claims27
A metalens comprising:
- a first metasurface comprising a plurality of first nanostructures disposed based on a first shape distribution;
- and
- a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface comprising a plurality of second nanostructures disposed based on a second shape distribution,
- wherein the metalens provides chromatic aberration for light in the predetermined wavelength band.
An imaging lens comprising:
- a lens assembly comprising one or more refractive lenses;
- and
- a metalens comprising:
- a first metasurface comprising a plurality of first nanostructures disposed based on a first shape distribution;
- and
- a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface comprising a plurality of second nanostructures disposed based on a second shape distribution,
- wherein the metalens provides chromatic aberration for light in the predetermined wavelength band.
An imaging device comprising:
- an imaging lens comprising:
- a lens assembly comprising one or more refractive lenses;
- and
- a metalens comprising:
- a first metasurface comprising a plurality of first nanostructures disposed based on a first shape distribution;
- and
- a second metasurface spaced apart from the first metasurface at a distance greater than a central wavelength of a predetermined wavelength band, the second metasurface comprising a plurality of second nanostructures disposed based on a second shape distribution,
- wherein the metalens provides chromatic aberration for light in the predetermined wavelength band;
- and
- an image sensor configured to convert an optical image formed by the imaging lens into an electrical signal.
Dependencies are inferred from the claim text.