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US 12,611,295 B2Granted
Lenses with optical markings
AssigneeAMO Groningen B.V.
InventorsRégis Y. N. R Gengler, Theophilus T. Bogaert, Tjeerd Zuidema, Hendrik H. Bekkering
Life of this patent
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Abstract
A lens including a posterior surface, an anterior surface, and at least one identification marking on the lens. The at least one identification marking exhibits a first degree of visibility in an ambient lighting condition and a second degree of visibility greater than the first degree of visibility in a lighting condition different than the ambient lighting condition.
Claims19
A lens, comprising:
- a posterior surface;
- an anterior surface;
- and
- at least one identification marking on the lens, wherein the at least one identification marking comprises a micro-structure engraving or a nano-structure engraving, wherein the micro-structure engraving or the nano-structure engraving exhibits a first degree of visibility in an ambient lighting condition and a second degree of visibility greater than the first degree of visibility in a lighting condition different than the ambient lighting condition, wherein the micro-structure engraving or the nano-structure engraving encodes customer information selected from the group consisting of an identification of a surgeon and an identification of a clinic.
1 more element
A lens, comprising:
- a posterior surface;
- an anterior surface;
- and
- at least one identification marking on the lens, wherein the at least one identification marking comprises a first pattern of features and a second pattern of features each having at least one periodicity resolvable in Fourier space, wherein at least two different angles are defined between adjacent features in at least one of the first pattern of features or the second pattern of features,
- wherein the first pattern of features and the second pattern of features are distinct, and
- wherein the first pattern of features has a first periodicity and the second pattern has a second periodicity different than the first periodicity.
3 more elements
A lens, comprising:
- a posterior surface;
- an anterior surface;
- a matrix comprising a plurality of cells configured to encode identification information of the lens;
- and
- at least one identification marking in at least one cell of the plurality of cells, the at least one identification marking comprising a micro-structure engraving or nano-structure engraving,
- wherein the at least one identification marking comprises a first type of micro-structure engraving or nano-structure engraving in one cell of the plurality of cells and a second type of micro-structure engraving or nano-structure engraving different than the first type of micro-structure engraving or nano-structure engraving in another cell of the plurality of cells, the first type of micro-structure engraving or nano-structure engraving being one of a Brewster angle marking, a retro-reflector marking, a grating marking, or a Fourier marking and the second type of micro-structure engraving or nano-structure engraving being a different one of the Brewster angle marking, the retro-reflector marking, the grating marking, or the Fourier marking, and
- wherein at least one cell of the plurality of cells comprises a super-structure, the super-structure comprising a plurality of sub-cells arranged in a sub-matrix.
4 more elements
Dependencies are inferred from the claim text.