Invention Publication
- Patent Title: MULTIFOCAL LENS HAVING REDUCED VISUAL DISTURBANCES
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Application No.: US18479314Application Date: 2023-10-02
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Publication No.: US20240024094A1Publication Date: 2024-01-25
- Inventor: Myoung-Taek CHOI , Xin HONG , Yueai LIU
- Applicant: Alcon Inc.
- Applicant Address: CH Fribourg
- Assignee: Alcon Inc.
- Current Assignee: Alcon Inc.
- Current Assignee Address: CH Fribourg
- Main IPC: A61F2/16
- 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.
Public/Granted literature
- US12161550B2 Multifocal lens having reduced visual disturbances Public/Granted day:2024-12-10
Information query
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