-
公开(公告)号：AU2021221613B2
公开(公告)日：2023-04-27
申请号：AU2021221613
申请日：2021-08-25
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , HONG XIN , LIU YUEAI
Abstract: A multifocal ophthalmic lens includes an ophthalmic lens having an anterior surface and a posterior surface and a diffractive element disposed on at least one of the anterior surface and the posterior surface. The diffractive element includes a plurality of annular diffractive steps and four consecutive diffractive orders. The ophthalmic lens produces a near focus, an intermediate focus, and a distance focus each corresponding to a different one of the four consecutive diffractive orders. The plurality of annular diffractive steps of the diffractive element are configured such that one of the four diffractive orders is suppressed and at least a portion of the energy associated with that suppressed diffractive order is redistributed to one of the near focus, the intermediate focus, and the distance focus.
-
公开(公告)号：AU2021221613A1
公开(公告)日：2021-09-23
申请号：AU2021221613
申请日：2021-08-25
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , HONG XIN , LIU YUEAI
Abstract: A multifocal ophthalmic lens includes an ophthalmic lens having an anterior surface and a posterior surface and a diffractive element disposed on at least one of the anterior surface and the posterior surface. The diffractive element includes a plurality of annular diffractive steps and four consecutive diffractive orders. The ophthalmic lens produces a near focus, an intermediate focus, and a distance focus each corresponding to a different one of the four consecutive diffractive orders. The plurality of annular diffractive steps of the diffractive element are configured such that one of the four diffractive orders is suppressed and at least a portion of the energy associated with that suppressed diffractive order is redistributed to one of the near focus, the intermediate focus, and the distance focus.
-
公开(公告)号：AU2019362472A1
公开(公告)日：2021-05-13
申请号：AU2019362472
申请日：2019-10-17
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , HUANG GANG , LIU YUEAI , MANGUM MICHAEL LEE , ZHAO ZEYU
Abstract: An intraocular lens including an optic zone and a modulated surface profile formed in the optic zone and configured to focus incident light at a plurality of focal points, wherein the modulated surface profile is incorporated with a base surface profile of the optic zone.
-
公开(公告)号：AU2017367260A1
公开(公告)日：2019-05-23
申请号：AU2017367260
申请日：2017-11-16
Applicant: ALCON INC
Inventor： LIU YUEAI , HONG XIN , CHOI MYOUNG-TAEK
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.
-
公开(公告)号：AU2017222472A1
公开(公告)日：2018-07-05
申请号：AU2017222472
申请日：2017-02-15
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , LIU YUEAI , HONG XIN
Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens (110) having an anterior surface (112), a posterior surface (114), at least one diffractive structure (120) and at least one base curvature (130). 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.
-
Patent Agency Ranking
公开(公告)号：AU2010259073B2
公开(公告)日：2014-05-08
申请号：AU2010259073
申请日：2010-06-04
Applicant: ALCON INC
Inventor： ZHANG XIAOXIAO , CURATU COSTIN EUGENE , VENKATESWARAN KRISHNAKUMAR , CARSON DANIEL ROBERT , KARAKELLE MUTLU , HONG XIN , LIU YUEAI
Abstract: An ophthalmic lens includes an optical filter operable to filter out at least visible light having a wavelength less than 450 nm. The lens also includes a first diffractive structure adapted to produce a focus for visible light in a first wavelength range above 550 nm and to reduce longitudinal chromatic aberration to less than one diopter for incoming visible light in the first wavelength range. The lens also includes a second diffractive structure outside the first diffractive structure in a radial direction and adapted to produce a focus for visible light in a second wavelength range between 450 nm and 550 nm. The second diffractive structure is also adapted to reduce longitudinal chromatic aberration for incoming visible light in the second wavelength range to less than one diopter while allowing longitudinal chromatic aberration in the first wavelength range in an amount greater than the first diffractive structure.
-
公开(公告)号：AU2024220166A1
公开(公告)日：2024-10-17
申请号：AU2024220166
申请日：2024-09-27
Applicant: ALCON INC
Inventor： LIU YUEAI , HONG XIN , CHOI MYOUNG-TAEK
Abstract: A method and system provide a multifocal ophthalmic lens. The multifocal ophthalmic includes an anterior surface; a posterior surface; and at least one diffractive structure including a plurality of echelettes having at least one step height of at least one wavelength and not more than two wavelengths in optical path length, the at least one diffractive structure residing on at least one of the anterior surface and the posterior surface, the at least one diffractive structure providing: a first diffractive order for a first focus corresponding to a first focal length; and a second diffractive order for a second focus corresponding to a second focal length, the second focal length being different from the first focal length; wherein the diffractive structure excludes a 0th diffractive order.
-
公开(公告)号：AU2019271990B2
公开(公告)日：2021-05-27
申请号：AU2019271990
申请日：2019-11-28
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , HONG XIN , LIU YUEAI
Abstract: A multifocal ophthalmic lens includes an ophthalmic lens having an anterior surface and a posterior surface and a diffractive element disposed on at least one of the anterior surface and the posterior surface. The diffractive element includes a plurality of annular diffractive steps and four consecutive diffractive orders. The ophthalmic lens produces a near focus, an intermediate focus, and a distance focus each corresponding to a different one of the four consecutive diffractive orders. The plurality of annular diffractive steps of the diffractive element are configured such that one of the four diffractive orders is suppressed and at least a portion of the energy associated with that suppressed diffractive order is redistributed to one of the near focus, the intermediate focus, and the distance focus.
-
公开(公告)号：MX2018009547A
公开(公告)日：2020-11-06
申请号：MX2018009547
申请日：2015-01-30
Applicant: ALCON INC
Inventor： LIU YUEAI , CHOI MYOUNG-TAEK , HONG XIN
Abstract: Una lente oftálmica multifocal incluye una lente oftálmica y un elemento difractivo. La lente oftálmica tiene una curvatura de base que corresponde a una potencia de base. El elemento difractivo produce interferencia constructiva en al menos cuatro órdenes de difracción consecutivos correspondientes a un rango de visión entre la visión de cerca y a distancia. La interferencia constructiva produce un foco de cerca, un foco a distancia correspondiente a la potencia de base de la lente oftálmica y un foco intermedio entre el foco de cerca y el foco a distancia. Se suprime una eficacia de difracción de al menos uno de los órdenes de difracción a menos del diez porciento.
-
公开(公告)号：AU2019271990A1
公开(公告)日：2019-12-19
申请号：AU2019271990
申请日：2019-11-28
Applicant: ALCON INC
Inventor： CHOI MYOUNG-TAEK , HONG XIN , LIU YUEAI
Abstract: A multifocal ophthalmic lens includes an ophthalmic lens having an anterior surface and a posterior surface and a diffractive element disposed on at least one of the anterior surface and the posterior surface. The diffractive element includes a plurality of annular diffractive steps and four consecutive diffractive orders. The ophthalmic lens produces a near focus, an intermediate focus, and a distance focus each corresponding to a different one of the four consecutive diffractive orders. The plurality of annular diffractive steps of the diffractive element are configured such that one of the four diffractive orders is suppressed and at least a portion of the energy associated with that suppressed diffractive order is redistributed to one of the near focus, the intermediate focus, and the distance focus.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.024 seconds)
