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    LENS WITH SURFACE MICROSTRUCTURES ENCAPSULATED BY A THICK LOW REFRACTIVE INDEX HARD COAT
    11.
    发明公开
    LENS WITH SURFACE MICROSTRUCTURES ENCAPSULATED BY A THICK LOW REFRACTIVE INDEX HARD COAT 审中-公开

    公开(公告)号：US20230161078A1

    公开(公告)日：2023-05-25

    申请号：US17918517

    申请日：2021-04-15

    Applicant: Essilor International

    Inventor： John BITEAU ,  Peiqi JIANG

    IPC: G02B1/14 ,  G02B3/00 ,  B29D11/00

    CPC classification number: G02B1/14 ,  G02B3/0031 ,  B29D11/00865 ,  B29D11/00009 ,  G02C7/022

    Abstract: The invention relates to an optical article comprising a base lens substrate having a at least one or a plurality of optical elements such as microlenses, a Fresnel structures, etc protruding from a surface thereof, and a hard coat covering encapsulating each optical elements. More particular it relates to an optical article comprising: a base lens substrate having opposing first and second lens surfaces; a protective layer having opposing first and second protective surfaces and a maximum thickness, measured in a direction perpendicular to the first protective surface between the first and second protective surfaces, the first protective surface disposed on the second lens surface; and at least one or a plurality of optical elements, each: defining a portion of one of the first protective surface and the second lens surface; having a maximum height, measured in a direction perpendicular to the second lens surface carrying them, that is less than or equal to 0.1 millimeters (mm) and a diameter that is less than or equal to 2.0 mm. wherein the protective layer is composed of a crosslinked matrix and nanoparticles and the index nc of said protective layer is lower than the index nm of the at least one or each optical element such that the difference nm−nc is greater than 0.045, preferably greater than 0.10, or even greater than 0.15; and wherein the maximum thickness of the protective layer is at least 2 times, preferably at least 5 times of the maximum height of the at least one or each of the optical elements. The invention also relates to the method for forming such optical articles, typically comprising an inkjet step.

    METHOD OF PREPARING A FUNCTIONAL LAMINATE
    12.
    发明公开
    METHOD OF PREPARING A FUNCTIONAL LAMINATE 审中-公开

    公开(公告)号：US20230141566A1

    公开(公告)日：2023-05-11

    申请号：US17802477

    申请日：2021-02-25

    Applicant: Essilor International

    Inventor： Peiqi JIANG

    IPC: B32B27/40 ,  B29C45/14 ,  B32B27/36 ,  B32B37/10

    CPC classification number: B32B27/40 ,  B29C45/14 ,  B32B27/365 ,  B32B37/10 ,  B29K2069/00

    Abstract: The present disclosure relates to a method of preparing a laminate or a laminated lens, comprising obtaining a first plastic substrate having a front surface and a back surface, treating the front surface of the first plastic substrate or the back surface of the first plastic substrate, and laminating a second plastic substrate on the treated front surface of the first plastic substrate or the treated back surface of the first plastic substrate. The treating may include applying a polyurethane resin to a surface of the first plastic substrate. The method may further comprise treating a surface of the second plastic substrate. The method may further comprise applying activator to the treated surfaces of the first plastic substrate and the second plastic substrate and laminating by apposing the treated surfaces of the first plastic substrate and the second plastic substrate.

    OPHTHALMIC LENS AND OPHTHALMIC LENS TREATMENT METHOD
    13.
    发明申请
    OPHTHALMIC LENS AND OPHTHALMIC LENS TREATMENT METHOD 有权

    公开(公告)号：US20230113381A1

    公开(公告)日：2023-04-13

    申请号：US17911057

    申请日：2021-03-12

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Peiqi JIANG

    IPC: G02C7/02 ,  B29D11/00

    Abstract: The present disclosure relates to an ophthalmic lens treatment method, comprising heating, in a humidified environment, a semi-finished lens (20) to a predetermined temperature, the semi-finished lens (20) containing a base lens (10) and a film structure (2) of a predetermined thickness, and surfacing the semi-finished lens (20) to a predetermined power, wherein the predetermin ed temperature is a temperature above a softening temperature of the film structure (2), the humidity of the humidified environment is between 30% and 99% and the predetermined thickness of the film structure (2) is between 200 µm and 800 pm.

    WAFER HOLDER BAND FOR MOLD INJECTION PROCESS
    14.
    发明申请
    WAFER HOLDER BAND FOR MOLD INJECTION PROCESS 有权

    公开(公告)号：US20210178711A1

    公开(公告)日：2021-06-17

    申请号：US17120763

    申请日：2020-12-14

    Applicant: Essilor International

    Inventor： Peiqi JIANG ,  Arnaud GLACET ,  Zbigniew TOKARSKI

    IPC: B29D11/00

    Abstract: The present disclosure includes systems, devices, and methods for preventing contamination during formation of an optical article. In some implementations, a device for preventing contamination of a mold cavity during injection molding of a function wafer includes a containment band having an annular base that defines a first opening configured to receive a functional wafer. The device also includes one or more sidewalls that project a first direction from and surround at least a portion of the first opening. The one or more sidewalls may be configured such that, during formation of an optical article, a first portion of the functional wafer is in contact with the one or more sidewalls.

    Method of Preparing Thick Laminate Wafers for Wafer Thermoforming and Injection Molding
    15.
    发明申请
    Method of Preparing Thick Laminate Wafers for Wafer Thermoforming and Injection Molding 有权

    公开(公告)号：US20230140081A1

    公开(公告)日：2023-05-04

    申请号：US17801548

    申请日：2021-02-25

    Applicant: Essilor International

    Inventor： Ahmed DRAMMEH ,  Eric BEGG ,  Zbigniew TOKARSKI ,  Peiqi JIANG

    IPC: B29D11/00 ,  B32B25/08 ,  G02B1/04

    Abstract: A method of forming an ophthalmic laminate lens, includes: forming a planar laminate by adhering a first polycarbonate layer to a first side of a thermoplastic elastomer layer, and adhering a second polycarbonate layer to a second side of the thermoplastic elastomer layer, the first polycarbonate layer having a thickness greater than 250 μm, the second polycarbonate layer having a thickness greater than 250 μm, and the thermoplastic elastomer layer having a thickness in a range of 15 μm to 150 μm; thermoforming the planar laminate into a curved laminate, the curve laminate having a pre-molding curvature; arranging the curved laminate in a mold; and molding, via the mold set at a predetermined temperature and a predetermined pressure, the curved laminate with a polymer melt into a curved lens.

    HYBRID GLASS AND PLASTIC LAMINATED LENSES AND METHOD OF MAKING SAME
    18.
    发明申请
    HYBRID GLASS AND PLASTIC LAMINATED LENSES AND METHOD OF MAKING SAME 审中-公开

    公开(公告)号：US20200050019A1

    公开(公告)日：2020-02-13

    申请号：US16607888

    申请日：2018-04-11

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Peiqi JIANG ,  Jean-Marc PADIOU

    IPC: G02C7/02 ,  G02B1/14 ,  G02B9/04

    Abstract: Disclosed are glass and plastic hybrid ophthalmic lenses and methods of manufacture. The lenses include a first glass layer having a first base curve; a second adhesive layer; and a third plastic layer having a second base curve substantially similar to the first base curve, wherein the concave surface of the first glass layer is laminated to the convex surface of the third plastic layer, and wherein the optical power difference between the first glass layer and the third plastic layer is from 0 to 0.1 Diopter (D).

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