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US 2023/0310143 A1Published application
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
Estimating the term…
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.
Claims27
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 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.
1 more element
2-3. (canceled)
(canceled)
8-10. (canceled)
(canceled)
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 pattern of features having at least one periodicity resolvable in Fourier space.
1 more element
(canceled)
(canceled)
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.
2 more elements
27-29. (canceled)
Dependencies are inferred from the claim text.