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公开(公告)号：US20240024094A1
公开(公告)日：2024-01-25
申请号：US18479314
申请日：2023-10-02
Applicant: Alcon Inc.
Inventor： Myoung-Taek CHOI , Xin HONG , Yueai LIU
CPC classification number: A61F2/164 , A61F2/1637 , A61F2/1618 , A61F2/1654 , G02C7/042 , G02C7/041 , 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.
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公开(公告)号：US20240148490A1
公开(公告)日：2024-05-09
申请号：US18407726
申请日：2024-01-09
Applicant: Alcon Inc.
Inventor： Myoung-Taek CHOI , Sangyeol LEE , Shinwook LEE , Wangkuen LEE
IPC: A61F2/16
CPC classification number: A61F2/1627 , A61F2/1616 , A61F2/1632 , A61F2/164
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.
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公开(公告)号：US20230408843A1
公开(公告)日：2023-12-21
申请号：US18337645
申请日：2023-06-20
Applicant: Alcon Inc.
Inventor： Myoung-Taek CHOI , Avni Ceyhun AKCAY
CPC classification number: G02C7/022 , G02C7/066 , G02C2202/20 , G02C2202/22
Abstract: Certain embodiments provide an intraocular lens (IOL) including a lens body having an anterior surface and a posterior surface, and a diffractive structure having a plurality of echelettes formed on at least one of the anterior surface or the posterior surface. A surface profile of the diffractive structure includes a base surface profile configured to diffract an incident light in one or more diffraction orders, and an achromatizing surface profile including increased step heights in the plurality of echelettes in relation to the base surface profile, and phase offsets between adjacent echelettes of the plurality of echelettes.
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公开(公告)号：US20250057645A1
公开(公告)日：2025-02-20
申请号：US18933470
申请日：2024-10-31
Applicant: Alcon Inc.
Inventor： Myoung-Taek CHOI , Xin HONG , Yueai LIU
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.
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