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公开(公告)号：US11585723B2
公开(公告)日：2023-02-21
申请号：US17122071
申请日：2020-12-15
Applicant: Alcon Inc.
Inventor： David Andrew Icenogle , Yeming Gu , Yan Wang
Abstract: A cuvette with at least one side having materials with thermal conductivity of at least 5 W/m-K, such as sapphire, for holding contact lenses or intra-ocular lenses during optical measurements. The cuvette may further include a backstop to ensure consistent measurements and a pedestal to minimize optical measurement variations.
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2.发明授权公开(公告)号：US10859465B2
公开(公告)日：2020-12-08
申请号：US16708861
申请日：2019-12-10
Applicant: Alcon Inc.
Inventor： David Andrew Icenogle , Yeming Gu
IPC: G01M11/02
Abstract: The invention is generally directed to an apparatus and a method for measuring a refractive index of a soft contact lens under a consistent pressure.
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公开(公告)号：US20200183192A1
公开(公告)日：2020-06-11
申请号：US16708685
申请日：2019-12-10
Applicant: Alcon Inc.
Inventor： Yeming Gu , Curtis Dean McKenney , Cornelius Daniel Niculas
Abstract: A method of manufacturing of an astigmatic contact lens having a toric portion and a thickness differential feature to provide lens orientation on eye portion such that said thickness differential causes the toric portion of the contact lens to properly orient in the eye of the wearer. The toric lenses are manufactured by an effective process control method for cylinder power in toric lens production by determining an amount of a mold cylinder compensation which is caused by processes in a toric lens manufacturing system including tool making, injection molding, casting and curing, wherein the mold cylinder is defined as the difference in measured radius of curvature at two orthogonal directions. A control metric is established by using the amount of a mold cylinder compensation and tolerance range and reject mold out of the control limits and improve the production yield for toric lens manufacturing.
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公开(公告)号：US20240377654A1
公开(公告)日：2024-11-14
申请号：US18777289
申请日：2024-07-18
Applicant: Alcon Inc.
Inventor： Yongxing Qiu , Robert Carey Tucker , Yeming Gu
Abstract: The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel layer and a posterior outer hydrogel layer. A contact lens of the invention is characterized by having a difference in surface softness between its poterior (BC) and anterior (FC) surfaces.
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Patent Agency Ranking
公开(公告)号：US12072556B2
公开(公告)日：2024-08-27
申请号：US17087963
申请日：2020-11-03
Applicant: Alcon Inc.
Inventor： Yongxing Qiu , Robert Carey Tucker , Yeming Gu
CPC classification number: G02C7/049 , B29D11/00048 , B29D11/00067 , G02B1/043 , B29K2067/00 , B29K2083/00
Abstract: The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel layer and a posterior outer hydrogel layer. A contact lens of the invention is characterized by having a difference in surface softness between its posterior (BC) and anterior (FC) surfaces.
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公开(公告)号：US20210190630A1
公开(公告)日：2021-06-24
申请号：US17122071
申请日：2020-12-15
Applicant: Alcon Inc.
Inventor： David Andrew Icenogle , Yeming Gu , Yan Wang
Abstract: A cuvette with at least one side having materials with thermal conductivity of at least 5 W/m-K, such as sapphire, for holding contact lenses or intra-ocular lenses during optical measurements. The cuvette may further include a backstop to ensure consistent measurements and a pedestal to minimize optical measurement variations.
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公开(公告)号：US20250003731A1
公开(公告)日：2025-01-02
申请号：US18756400
申请日：2024-06-27
Applicant: Alcon Inc.
Inventor： Yeming Gu , Yan Wang , Seyedhadi Hosseini
IPC: G01B9/02091 , G01B11/24 , G02C7/02
Abstract: A method for quantitively evaluating contact lens edge lift and distortion. The method includes the steps of scanning an edge of a contact lens, modeling the edge profile, determining a best-fit line over the modeled edge profile, calculating the slope of the best-fit line at a contact lens edge point, and further calculating a slope edge angle (ESA) as a function of the slope, wherein the ESA is a highly effective metric for capturing the contact lens edge-lift relative to the intended shape of the lens. The method may be used to provide design feedback, predict clinical fitting outcomes, and for quality control purposes.
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公开(公告)号：US11207854B2
公开(公告)日：2021-12-28
申请号：US16708685
申请日：2019-12-10
Applicant: Alcon Inc.
Inventor： Yeming Gu , Curtis Dean McKenney , Cornelius Daniel Niculas
Abstract: A method of manufacturing of an astigmatic contact lens having a toric portion and a thickness differential feature to provide lens orientation on eye portion such that said thickness differential causes the toric portion of the contact lens to properly orient in the eye of the wearer. The toric lenses are manufactured by an effective process control method for cylinder power in toric lens production by determining an amount of a mold cylinder compensation which is caused by processes in a toric lens manufacturing system including tool making, injection molding, casting and curing, wherein the mold cylinder is defined as the difference in measured radius of curvature at two orthogonal directions. A control metric is established by using the amount of a mold cylinder compensation and tolerance range and reject mold out of the control limits and improve the production yield for toric lens manufacturing.
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公开(公告)号：US20210132411A1
公开(公告)日：2021-05-06
申请号：US17087963
申请日：2020-11-03
Applicant: Alcon Inc.
Inventor： Yongxing Qiu , Robert Carey Tucker , Yeming Gu
Abstract: The invention is related to a contact lens, especially a SiHy contact lens, which comprises a lens bulk material covered with an outer surface hydrogel layer thereon and has a posterior surface and an opposite anterior surface. The outer surface hydrogel layer consists of an anterior outer hydrogel layer and a posterior outer hydrogel layer. A contact lens of the invention is characterized by having a difference in surface softness between its posterior (BC) and anterior (FC) surfaces.
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