公开(公告)号：US20240134212A1

公开(公告)日：2024-04-25

申请号：US18538044

申请日：2023-12-13

Applicant: Alcon Inc.

Inventor： Xin Hong ,  William Andrew Maxwell ,  Xin Wei

IPC: G02C7/02 ,  A61F2/16 ,  G02C7/04

CPC classification number: G02C7/028 ,  A61F2/1618 ,  A61F2/164 ,  G02C7/022 ,  G02C7/04 ,  G02C7/041 ,  G02C7/044 ,  G02C7/049 ,  A61F2/1654

Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.

公开(公告)号：US20240061271A1

公开(公告)日：2024-02-22

申请号：US17819973

申请日：2022-08-16

Applicant: Alcon Inc.

Inventor： Xin Hong

IPC: G02C7/02

CPC classification number: G02C7/022

Abstract: An ophthalmic lens includes an optic having a first surface and a second surface disposed about an optical axis. At least one of the first surface and the second surface includes a surface profile having a base curvature and a plurality of zones. The base curvature corresponds to a base optical power. The plurality of zones is adapted to produce a plurality of curves corresponding to light energy distribution along the optical axis. The surface profile includes a plurality of adjustments providing an extended depth-of-focus, the plurality of adjustments being adapted to extend each one of the plurality of curves towards another of the plurality of curves. The plurality of adjustments may include at least one spherical aberration. The plurality of adjustments may include at least one longitudinal chromatic aberration. The plurality of adjustments may include at least one phase shift change.

公开(公告)号：US20220273424A1

公开(公告)日：2022-09-01

申请号：US17663748

申请日：2022-05-17

Applicant: Alcon Inc.

Inventor： Xin Hong ,  Shinwook Lee

IPC: A61F2/16 ,  G02B3/08 ,  G02B27/00 ,  G02B27/42 ,  G02C7/04

Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having anterior surface, a posterior surface and at least one diffractive structure including a plurality of zones. The at least one diffractive structure is for at least one of the anterior surface and the posterior surface. Each zone includes at least one echelette having a least one step height. The step height(s) are individually optimized for each zone. To compensate chromatic aberration of eye from distance to a range of vision, a greater than 2π phase step height may be employed and the step height(s) folded by a phase, which is an integer multiple of two multiplied by π. Hence chromatic aberration of eye may be compensated to improve vision from distance to near.

公开(公告)号：US20220113557A1

公开(公告)日：2022-04-14

申请号：US17496093

申请日：2021-10-07

Applicant: Alcon Inc.

Inventor： Xin Hong

IPC: G02C7/02 ,  G02C7/04 ,  G02C7/06

Abstract: An ophthalmic lens includes an optic with a first surface, a second surface, and a phase-shift structure having one or more phase-shift regions. A method for fabricating an ophthalmic lens includes designing an optic with a first surface, a second surface, and a phase-shift structure having one or more phase-shift regions. The phase-shift regions may be adapted to generate respective chromatic focal shifts such that an incident radiation in a respective wavelength range at least partially converges towards a respective selected wavelength. The method includes determining a chromatic aberration target for the optic and determining the quantity of the phase-shift regions meeting the chromatic aberration target. The optic is formed with the phase-shift regions having respective optimal heights obtained based in part on an overall interaction effect. The phase-shift structure may be adapted to increase a depth-of-focus of the optic in the direction of extension.

公开(公告)号：US20210220118A1

公开(公告)日：2021-07-22

申请号：US17223268

申请日：2021-04-06

Applicant: Alcon Inc.

Inventor： Myoung-Taek Choi ,  Xin Hong ,  Yueai Liu

IPC: A61F2/16 ,  G02C7/04 ,  G02B27/58 ,  G02C7/02 ,  G02C7/06

Abstract: A method and system provide a multifocal ophthalmic device. The ophthalmic lens has an anterior surface, a posterior surface and at least one diffractive structure including a plurality of echelettes. The echelettes have at least one step height of at least one wavelength and not more than two wavelengths in optical path length. The diffractive structure(s) reside on at least one of the anterior surface and the posterior surface. The diffractive structure(s) provide a plurality of focal lengths for the ophthalmic lens.