Lenses having multi-ring design for vision treatment

Patent metadata

Field	Value
Publication number	US-12544218-B2
Application number	US-202218061382-A
Country	US
Kind code	B2
Filing date	Dec 2, 2022
Priority date	Dec 3, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

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.

First claim

What is claimed is:

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.

Assignees

• Amo Groningen Bv

Inventors

• Alarcon Heredia Aixa
• Faria Ribeiro Miguel
• Gounou Franck
• Piers Patricia A
• Weeber Hendrik
• Canovas Vidal Carmen
• Rosen Robert

Classifications

• G02B3/08

  with discontinuous faces, e.g. Fresnel lens {(diffractive Fresnel lenses G02B5/1876)} · CPC title

• G02B5/1895

  such optical elements having dioptric power · CPC title

• G02C2202/20

  Diffractive and Fresnel lenses or lens portions · CPC title

• A61F2/1654 Primary

  Diffractive lenses · CPC title

• G02C7/041 Primary

  bifocal; multifocal · CPC title