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US 2022/0187623 A1Published application
Colored contact lens, manufacturing method of colored contact lens, and iris recognition system
AssigneeNEC Corporation
InventorMamoru INOUE
Life of this patent
Estimating the term…
Abstract
Provided is a colored contact lens having: a lens; and a colored region formed in the lens, at least a part of the colored region is arranged at a position overlapping an iris of a wearer when the colored contact lens is worn, and the colored region has infrared transparency.
Claims14
A contact lens comprising:
- a lens;
- and
- a first region formed in the lens,
- wherein at least a part of the first region is arranged at a position overlapping an iris of a wearer and is not arranged at a position overlapping a pupil of the wearer when the contact lens is worn, and
- wherein the first region has transparency to a light having a first wavelength and has absorbability or reflectivity to a light having a second wavelength.
2 more elements
An iris recognition system comprising:
- a first image acquisition unit that captures an iris of a recognition subject wearing a contact lens having a first region by using a light having a first wavelength that transmits the first region, wherein the first region has transparency to a light having the first wavelength and has absorbability or reflectivity to a light having a second wavelength;
- a second image acquisition unit that captures the iris by using a light having the second wavelength;
- a determination unit that determines whether or not the recognition subject is wearing the contact lens;
- and
- a comparison unit that performs comparison on the iris,
- wherein when the determination unit determines that the recognition subject is wearing the contact lens, the comparison unit performs comparison by using an image acquired by a light having the first wavelength, and
- wherein when the determination unit determines that the recognition subject is not wearing the contact lens, the comparison unit performs comparison by using an image acquired by a light having the first wavelength or a light having the second wavelength.
4 more elements
A manufacturing method of a contact lens, the manufacturing method comprising:
- forming a lens;
- and
- forming a first region in the lens,
- wherein at least a part of the first region is arranged at a position overlapping an iris of a wearer and is not arranged at a position overlapping a pupil of the wearer when the contact lens is worn, and
- wherein the first region has transparency to a light having a first wavelength and has absorbability or reflectivity to a light having a second wavelength.
2 more elements
Dependencies are inferred from the claim text.