IP Library › Granted Patent US 12,544,218
Granted Patent B2
US 12,544,218 · App. 18/061,382 · Granted Feb 10, 2026

Lenses having multi-ring design for vision treatment

Inventors: Aixa Alarcon Heredia (Groningen, NL); Miguel Faria Ribeiro (Braga, PT); Franck Gounou (Groningen, NL); Patricia A. Piers (Groningen, NL); Hendrik Weeber (Groningen, NL); Carmen Canovas Vidal (Groningen, NL); Robert Rosen (Groningen, NL)
Assignee: AMO Groningen B.V.
A61F2/1654
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Quick Facts
Patent No.
US 12,544,218
App. No.
18/061,382
Granted
Feb 10, 2026
Kind
B2
Abstract

Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for providing improved extended depth of focus lenses. Exemplary ophthalmic lenses can include an optic including a diffractive profile including multiple rings, with the rings having step heights corresponding to a desired performance of the optic and configured to reduce adverse optical effects of the diffractive profile.

Claims (15)

1 . An intraocular lens (IOL) comprising:

an optic comprising an anterior optical surface, a posterior optical surface, and an outer periphery, wherein one of the optical surfaces comprises a diffractive profile including an interior echelette having a step height of no more than 0.2 wavelengths and an outer echelette having a step height of more than 0.2 wavelengths and less than two wavelengths, and a refractive zone extending radially outward from the outer echelette to the outer periphery of the optic and adjacent to the outer echelette,

wherein the optic includes a central zone and the interior echelette is positioned at the central zone,

wherein the outer echelette is adjacent to the interior echelette,

wherein the interior echelette has a width corresponding to a power of between 1 diopter and 5 diopters.

2 . The intraocular lens of claim 1 , wherein the interior echelette has a width of about 0.5 millimeters.

3 . The intraocular lens of claim 1 , wherein the outer echelette has a width corresponding to a power of between 1 diopter and 5 diopters.

4 . The intraocular lens of claim 3 , wherein the outer echelette has a width of about 0.5 millimeters.

5 . The intraocular lens of claim 1 , wherein a width of the interior echelette in r-squared space is the same as a width of the outer echelette in r-squared space.

6 . The intraocular lens of claim 1 , wherein a width of the interior echelette in r-squared space is different than a width of the outer echelette in r-squared space.

7 . The intraocular lens of claim 1 , wherein the interior echelette is positioned at an optical axis of the optic.

8 . The intraocular lens of claim 1 , wherein the diffractive profile includes no more echelettes than the interior echelette and the outer echelette.

9 . The intraocular lens of claim 1 , wherein the interior echelette has a step height of zero.

10 . The intraocular lens of claim 1 , wherein the interior echelette has a step height that is greater than zero.

11 . The intraocular lens of claim 1 , wherein the outer echelette has a step offset.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2022
From: ALARCON HEREDIA, AIXA; FARIA RIBEIRO, MIGUEL; GOUNOU, FRANCK; PIERS, PATRICIA A.; WEEBER, HENDRIK; CANOVAS VIDAL, CARMEN; ROSEN, ROBERT
To: AMO GRONINGEN B.V.
Reel/Frame 061962/0410 →
Continuity (2)
Provisional Application 63264938 · Dec 3, 2021
Related Publication 20230172705A1 · Jun 8, 2023
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