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    Multifocal lens having reduced visual disturbances
    4.
    发明授权
    Multifocal lens having reduced visual disturbances 有权

    公开(公告)号：US11813160B2

    公开(公告)日：2023-11-14

    申请号：US17664531

    申请日：2022-05-23

    Applicant: Alcon Inc.

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

    IPC: A61F2/16 ,  G02C7/04

    CPC classification number: A61F2/164 ,  A61F2/1618 ,  A61F2/1637 ,  A61F2/1654 ,  G02C7/041 ,  G02C7/042 ,  G02C7/049 ,  A61F2/1613 ,  A61F2002/1683 ,  G02C2202/20

    Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, at least one diffractive structure and at least one base curvature. The at least one diffractive structure for provides a first spherical aberration for a first focus corresponding to at least a first focal length. The at least one base curvature provides a second spherical aberration for at least a second focus corresponding to at least a second focal length. The first spherical aberration and the second spherical aberration are provided such that the first focus has a first focus spherical aberration and the second focus has a second focus spherical aberration. The first focus spherical aberration is opposite in sign to the second focus spherical aberration.

    Multifocal lens having reduced visual disturbances
    6.
    发明授权
    Multifocal lens having reduced visual disturbances 有权

    公开(公告)号：US11364111B2

    公开(公告)日：2022-06-21

    申请号：US16864254

    申请日：2020-05-01

    Applicant: Alcon Inc.

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

    IPC: A61F2/16 ,  G02C7/04

    Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, at least one diffractive structure and at least one base curvature. The at least one diffractive structure for provides a first spherical aberration for a first focus corresponding to at least a first focal length. The at least one base curvature provides a second spherical aberration for at least a second focus corresponding to at least a second focal length. The first spherical aberration and the second spherical aberration are provided such that the first focus has a first focus spherical aberration and the second focus has a second focus spherical aberration. The first focus spherical aberration is opposite in sign to the second focus spherical aberration.

    MULTIFOCAL OPHTHALMIC LENSES
    7.
    发明申请
    MULTIFOCAL OPHTHALMIC LENSES 有权

    公开(公告)号：US20250099230A1

    公开(公告)日：2025-03-27

    申请号：US18897752

    申请日：2024-09-26

    Applicant: Alcon Inc.

    Inventor： Wei Lu ,  Myoung-Taek Choi ,  Zhiguang Xu ,  Sangyeol Lee ,  Shinwook Lee ,  Daniel R. Carson

    IPC: A61F2/16

    Abstract: Provided in this document are examples of a multifocal ophthalmic lens. The lens includes a base lens having a base curvature corresponding to a base power; and a diffractive structure comprising a plurality of annular echelettes formed on a first surface of the base lens. The diffractive structure is configured to produce a zero-order diffraction corresponding to a distance vision focal point determined by the base power, the diffraction efficiency of the zero-order diffraction between 45% and 55%; a first-order diffraction having a diffraction efficiency between 5% and 10%; a second-order diffraction corresponding to an intermediate vision focal point, the diffraction efficiency between 15% and 20%; and a third-order diffraction corresponding to a near vision focal point, the diffraction efficiency between 15% and 25%. The diffractive structure includes a plurality of annular diffractive steps, each defined by a profile having a curved slope and a peak.

    Multifocal lens having reduced visual disturbances
    8.
    发明授权
    Multifocal lens having reduced visual disturbances 有权

    公开(公告)号：US12161550B2

    公开(公告)日：2024-12-10

    申请号：US18479314

    申请日：2023-10-02

    Applicant: Alcon Inc.

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

    IPC: A61F2/16 ,  G02C7/04

    Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, at least one diffractive structure and at least one base curvature. The at least one diffractive structure for provides a first spherical aberration for a first focus corresponding to at least a first focal length. The at least one base curvature provides a second spherical aberration for at least a second focus corresponding to at least a second focal length. The first spherical aberration and the second spherical aberration are provided such that the first focus has a first focus spherical aberration and the second focus has a second focus spherical aberration. The first focus spherical aberration is opposite in sign to the second focus spherical aberration.

    OPHTHALMIC LENSES HAVING AN EXTENDED DEPTH OF FOCUS FOR IMPROVING INTERMEDIATE VISION
    9.
    发明申请
    OPHTHALMIC LENSES HAVING AN EXTENDED DEPTH OF FOCUS FOR IMPROVING INTERMEDIATE VISION 有权

    公开(公告)号：US20210330452A1

    公开(公告)日：2021-10-28

    申请号：US17231374

    申请日：2021-04-15

    Applicant: Alcon Inc.

    Inventor： Myoung-Taek Choi ,  Sangyeol Lee ,  Shinwook Lee ,  Wangkuen Lee

    IPC: A61F2/16

    Abstract: The present disclosure provides an ophthalmic lens (such as an IOL) that is designed to enhance depth of focus for intermediate vision performance, while maintaining distance vision. The lens may include an optic having an anterior surface and a posterior surface disposed about an optical axis. One of the surfaces (e.g., the anterior surface) may have a surface profile involving a superposition of at least three structures or profiles, including a base structure, a phase shift structure having an inner region, an outer region and a transition region, and a zonal structure having an inner power zone and an outer transition zone.

    MULTIFOCAL LENS HAVING REDUCED CHROMATIC ABERRATIONS
    10.
    发明申请
    MULTIFOCAL LENS HAVING REDUCED CHROMATIC ABERRATIONS 有权

    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.

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