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    Wafer holder band for mold injection process
    11.
    发明授权
    Wafer holder band for mold injection process 有权

    公开(公告)号：US11878480B2

    公开(公告)日：2024-01-23

    申请号：US17120763

    申请日：2020-12-14

    Applicant: Essilor International

    Inventor： Peiqi Jiang ,  Arnaud Glacet ,  Zbigniew Tokarski

    IPC: B29D11/00

    CPC classification number: B29D11/0048

    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.

    Adhesive for PC-MOF application
    14.
    发明授权
    Adhesive for PC-MOF application 有权

    公开(公告)号：US11760047B2

    公开(公告)日：2023-09-19

    申请号：US17054813

    申请日：2019-05-13

    Applicant: Essilor International

    Inventor： Elliot French ,  Peiqi Jiang

    IPC: B29D11/00 ,  G02B1/04 ,  B29K669/00 ,  B29K701/12

    CPC classification number: B29D11/0073 ,  B29D11/00009 ,  G02B1/041 ,  B29K2669/00 ,  B29K2701/12

    Abstract: Disclosed are methods (100) for preparing a laminate incorporable to a surface of an optical lens and methods (500) for incorporating the laminate on the surface of the optical lens. The laminate is prepared by laminating an optical film (202a, 202b), such as a polycarbonate film, on each side of a functional film using an adhesive that is capable of preventing optical defects in the laminates during a thermoforming process and an injection molding process. The adhesive has optimal thermomechanical properties that include that the optical film (202a, 202b) coated with said adhesive has a modulus by compression greater than 6×106 Pa, and preferably greater than 2×108 Pa at a temperature from about 130° C. to 150° C. The laminate is incorporated on the optical lens via thermoforming followed by injection molding with overmolding technology.

    Systems and methods for retention of lenses in eyeglass frames using elastic cushion connectors
    16.
    发明授权
    Systems and methods for retention of lenses in eyeglass frames using elastic cushion connectors 有权

    公开(公告)号：US10371961B2

    公开(公告)日：2019-08-06

    申请号：US15541196

    申请日：2014-12-31

    Applicant: Essilor International

    Inventor： Peiqi Jiang ,  John Guerra

    IPC: G02C5/00 ,  G02C1/04 ,  G02C1/06

    Abstract: User configurable eyeglasses employing retention of lenses in eyeglass frames using elastic cushion connectors may include a pair of lenses, each lens comprising at least one tab extending from the lens. An eyeglasses frame may define at least two fittings, each fitting positioned to receive one tab extending from a lens and each fitting sized larger than the tab to be received. A plurality of eyeglass lens retention cushions are each adapted to be disposed in one of the fittings and to receive one of the tabs. Each eyeglass lens retention cushion might have an elastic cushion body having a relaxed, or in situ, exterior size larger than an interior socket of the fittings and may have an interior opening with a relaxed, or in situ, size smaller than a tab extending from an eyeglasses lens.

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