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公开(公告)号：US20250042082A1
公开(公告)日：2025-02-06
申请号：US18719670
申请日：2022-12-15
Applicant: ESSILOR INTERNATIONAL
Inventor： Haifeng SHAN
IPC: B29C64/118 , B29C64/209 , B29C64/245 , B29C64/295 , B29L11/00 , B33Y10/00 , B33Y40/10
Abstract: A fused filament fabrication 3D printing method for fabricating an optical article includes applying a surface treatment (1710) to a building plate; heating the building plate to a predetermined plate temperature (1720); dispensing a thermoplastic through a nozzle set at a predetermined nozzle temperature onto the building plate (1730) while translating the nozzle or the building plate according to a first predetermined pattern at a predetermined printing speed to form a first layer; and solidifying the first layer, wherein a range of the predetermined plate temperature is between 30° C. lower than a glass transition temperature of the thermoplastic and 20° C. higher than the glass transition temperature of the thermoplastic, and a range of the predetermined nozzle temperature is at least 100° C. higher than the glass transition temperature of the thermoplastic, and at least 50° C. lower than a degradation temperature of the thermoplastic.
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2.发明公开公开(公告)号：US20230375856A1
公开(公告)日：2023-11-23
申请号：US18030440
申请日：2021-10-06
Applicant: Essilor International
Inventor： Haifeng SHAN , Hao-Wen CHIU , Elliot FRENCH , Aref JALLOULI
CPC classification number: G02C7/022 , G02C7/104 , G02C7/108 , G02C2202/20 , G02C2202/12 , G02C2202/24 , G02C2202/16
Abstract: An optical article, includes: a first surface and a second surface, wherein at least one microstructure is patterned on the second surface to form a microstructure pattern, the microstructure pattern including a plurality of microlenses configured to adjust a focus of the optical article, and a first dye having a first dye peak absorbance wavelength with a first dye bandwidth, wherein the first dye is configured to filter a first predetermined range of light wavelengths. The optical article may further comprise a protective microstructure pattern, the protective microstructure pattern having a plurality of protective microstructures arranged complementary to an arrangement of a plurality of optical microstructures, the arrangement of the plurality of optical microstructures being disposed in the complementary arrangement of the protective microstructures.
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公开(公告)号：US20220276409A1
公开(公告)日：2022-09-01
申请号：US17623699
申请日：2020-07-01
Applicant: Essilor International
Inventor： Hao-Wen CHIU , Aref JALLOULI , Haifeng SHAN
Abstract: Disclosed herein is an injection molding method for making optical thermoplastic lenses using 3D-printed functional wafers. The wafer and base lens are made of different materials having dissimilar glass transition temperatures.
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公开(公告)号：US20230127265A1
公开(公告)日：2023-04-27
申请号：US17918037
申请日：2021-04-12
Applicant: Essilor International
Inventor： Haifeng SHAN
Abstract: The present disclosure relates to a method of designing a spherical microstructure mold (604-614) module to be incorporated into a calendering roller (600) for generating a microstructure (108) on a planar surface (104), comprising calculating a first curvature (204) on a cross-sectional planar surface (202) for a first microstructure point of the spherical microstructure mold module, calculating a second curvature (210) of a spherical surface (102) of the spherical microstructure mold module, measuring a radius (214) of the spherical surface (102), the radius (214) being from the center of the spherical surface (102) to the first microstructure point, and determining a location of the microstructure (108) on the planar surface (104), the location being derived from the first curvature (204), the second curvature (210), and the radius (214).
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5.发明申请公开(公告)号：US20190264003A1
公开(公告)日：2019-08-29
申请号：US16335150
申请日：2017-09-20
Applicant: ESSILOR INTERNATIONAL
Inventor： Hao Wen CHIU , Elliot FRENCH , Aref JALLOULI , Haifeng SHAN
IPC: C08K5/3475 , C08K5/18 , C08K5/101 , C08K5/00 , C08K5/12 , C08K5/3435 , G02B1/04
Abstract: Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding. The additives may be used to adapt a PC resin customarily used for sun protection lenses for clear lens applications.
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Patent Agency Ranking
公开(公告)号：US20190250431A1
公开(公告)日：2019-08-15
申请号：US16317762
申请日：2016-07-15
Applicant: ESSILOR INTERNATIONAL
Inventor： Haifeng SHAN , Aref JALLOULI , Hao Wen CHIU , Srini BALASUBRAMANIAN , Haipeng ZHENG
CPC classification number: G02C7/10 , G02B1/041 , G02B5/223 , G02B5/3033 , G02B5/305 , G02B5/3075 , G02C7/12 , G02C2202/16
Abstract: Disclosed are polarized films containing specific light filters that block transmission of harmful electromagnetic radiation. Also disclosed are methods of producing said films as well as ophthalmic lenses having increased eye health.
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公开(公告)号：US20230128937A1
公开(公告)日：2023-04-27
申请号：US17918045
申请日：2021-04-12
Applicant: Essilor International
Inventor： Haifeng SHAN
Abstract: A laminate, including a substrate having a microstructure on a surface thereof; and a coating layer formed on the substrate and encapsulating the microstructure of the substrate. A glass transition temperature T1 of the substrate is higher than a glass transition temperature T2 of the coating layer. A method of producing an ophthalmic lens, including deforming the laminate into a shape of the ophthalmic lens by applying heat and/or pressure at a temperature of lower than T1.
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公开(公告)号：US20190317338A1
公开(公告)日：2019-10-17
申请号：US16343160
申请日：2016-10-19
Applicant: ESSILOR INTERNATIONAL
Inventor： Hao-Wen CHIU , Haifeng SHAN , Elliot FRENCH
Abstract: Optical polymeric sheets with specific ranges of optical retardation, elastic modulus, and Shore A hardness were used to construct flexible polar patches. The polar patches conform to non-polarizing lenses of various diopter bases and provide polarizing efficiency that is comparable to regular polarizing lenses.
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公开(公告)号：US20160320638A1
公开(公告)日：2016-11-03
申请号：US15107743
申请日：2013-12-23
Inventor： Aref JALLOULI , Haifeng SHAN , Gilles BAILLET
CPC classification number: G02C7/108 , G02B1/041 , G02B1/10 , G02C7/104 , C08L2666/70
Abstract: The present invention relates to a transparent optical article (e.g. an ophthalmic lens) comprising a thermoplastic substrate and a dye at least partially inhibiting light having a wavelength ranging from 400 to 460 nm and an optical brightener for at least partially balancing the colour imparted to the transparent optical article by the dye, wherein said optical brightener emits light by fluorescence at a wavelength ranging from 400 to 460 nm and is incorporated into a layer fused or bonded to the thermoplastic substrate. Said optical brightener allows for perception of said optical article as less yellow, and even colourless, to a user or to an observer. In addition, the UV-absorbers that may be present in the thermoplastic substrate do not negatively interact with the optical brightener.
Abstract translation: 本发明涉及一种透明光学制品（例如眼镜片），其包括热塑性基材和至少部分抑制波长范围为400至460nm的光的染料和用于至少部分平衡赋予 透明的光学制品，其中所述荧光增白剂通过在400至460nm波长范围内的荧光发光，并且被结合到熔融或结合到热塑性基材上的层中。 所述荧光增白剂允许所述光学制品对用户或观察者的感觉较少黄色，甚至无色。 此外，可能存在于热塑性基材中的紫外线吸收剂不与荧光增白剂负相互作用。
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10.发明公开公开(公告)号：US20240227332A1
公开(公告)日：2024-07-11
申请号：US18563150
申请日：2022-05-25
Applicant: Essilor International
Inventor： Pierre FROMENTIN , Haifeng SHAN
CPC classification number: B29D11/00519 , B29C33/58 , B29C33/62 , B29C39/026 , B29D11/0048 , B29D11/00865 , B29K2101/10 , B29L2011/0016
Abstract: A composite mold for manufacturing a thermoset optical article which is usable as an ophthalmic lens substrate and which comprises a microstructured main surface, to a method for manufacturing such a thermoset optical article, and to a method for obtaining the composite mold. The composite mold (1) comprises:·—a mineral first outer mold part (2) having a first inner surface (2a). and ·—an organic molding film (4) detachably bonded to the first inner surface (2a) and having a microstructured pattern configured to directly form said microstructured main surface after casting the thermosetting material (6) in contact with the organic molding film (4). The organic molding film (4) is hydrophobic at least on said microstructured pattern, and has a thickness of between 10 nm and 5001-1m.
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