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

IPC: A61F2/16 ,  G02C7/04

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.

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

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.