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    Method of preparing an operation of surfacing of a lens blank
    1.
    发明授权
    Method of preparing an operation of surfacing of a lens blank 有权

    公开(公告)号：US11511385B2

    公开(公告)日：2022-11-29

    申请号：US16157681

    申请日：2018-10-11

    Applicant: Essilor International

    Inventor： Sébastien Piraube ,  Xavier Bultez ,  Jérome Moine

    IPC: B24B13/00 ,  B24B9/14 ,  G02C7/02 ,  B24B13/005

    Abstract: Disclosed is a method of preparing an operation of surfacing of a lens blank to transform the lens blank into a generated lens having a predetermined prism corresponding to an inclination between a front surface and a back surface of the generated lens at least locally. The method includes: for a plurality of devices destined to interact with the lens blank during the operation of surfacing to manufacture the predetermined prism of the generated lens, attributing a priority order to each; based on the priority order, attributing to each device a prism portion which is zero or included in a respective range delimited by a respective minimum prism portion and a respective maximum prism portion, the prism portion representing contribution of the corresponding device to the prism of the generated lens, for further interaction of each device with the lens blank during the operation of surfacing.

    Device for pneumatically blocking a semi-finished optical element
    2.
    发明授权
    Device for pneumatically blocking a semi-finished optical element 有权

    公开(公告)号：US12138731B2

    公开(公告)日：2024-11-12

    申请号：US16612027

    申请日：2018-06-12

    Applicant: Essilor International

    Inventor： Sébastien Pinault ,  Luc Martin ,  Jérôme Moine ,  Xavier Bultez

    IPC: B24B13/005

    Abstract: A blocking device includes a support member configured for providing a rigid support to the semi-finished optical element, the support member having a contact face onto which a first face of the optical element is to be applied; and a pneumatic blocking member defining a cavity configured to be closed by the first face of the optical element, the pneumatic blocking member being configured to sustain a vacuum inside the cavity so that the optical element is attached to the blocking device; the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, and assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the contact face of the support member being a surface of the support element.

    Set including a semi-finished optical element and a blocking device; and a method for providing such a set
    3.
    发明授权
    Set including a semi-finished optical element and a blocking device; and a method for providing such a set 有权

    公开(公告)号：US11623317B2

    公开(公告)日：2023-04-11

    申请号：US16484393

    申请日：2018-02-07

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Jérome Moine ,  Luc Martin ,  Sébastien Pinault ,  Xavier Bultez

    IPC: B24B13/005 ,  B29D11/00

    Abstract: A set includes a molding device having a molding face having the same shape as a contact face of the blocking device. A removable overlay of rigid material has a first face attached to a first face of the semi-finished optical element and a second face opposite to the first face having the same shape as the contact face of the blocking device, the set being configured for having a first subset configuration in which the second face of the removable overlay is in molding contact with the molding face of the molding device, then a second subset configuration in which the second face of the removable overlay is free and then a third subset configuration in which the second face of the removable overlay is retained in contact with the contact face of the blocking device.

    Device for adhesively blocking a semi-finished optical element
    5.
    发明授权
    Device for adhesively blocking a semi-finished optical element 有权

    公开(公告)号：US12233503B2

    公开(公告)日：2025-02-25

    申请号：US16606562

    申请日：2018-06-12

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Sébastien Pinault ,  Luc Martin ,  Jérôme Moine ,  Xavier Bultez

    IPC: B24B13/005 ,  B24B9/14

    Abstract: A blocking device includes a support member configured for providing a rigid support to the semi-finished optical element, the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, and assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the support member having a contact face onto which the first face of the optical element is to be applied, the contact face of the support member being a surface of the support element, the shape-memory material being configured for having adherence properties with respect to the first face of the optical element, the adherence properties being sufficient for attaching the first face of the optical element to the contact face of the support element.

    METHOD OF PREPARING AN OPERATION OF SURFACING OF A LENS BLANK
    8.
    发明申请
    METHOD OF PREPARING AN OPERATION OF SURFACING OF A LENS BLANK 审中-公开

    公开(公告)号：US20190111538A1

    公开(公告)日：2019-04-18

    申请号：US16157681

    申请日：2018-10-11

    Applicant: Essilor International

    Inventor： Sébastien Piraube ,  Xavier Bultez ,  Jérome Moine

    IPC: B24B13/00 ,  G02C7/02

    Abstract: Disclosed is a method of preparing an operation of surfacing of a lens blank to transform the lens blank into a generated lens having a predetermined prism corresponding to an inclination between a front surface and a back surface of the generated lens at least locally. The method includes: for a plurality of devices destined to interact with the lens blank during the operation of surfacing to manufacture the predetermined prism of the generated lens, attributing a priority order to each; based on the priority order, attributing to each device a prism portion which is zero or included in a respective range delimited by a respective minimum prism portion and a respective maximum prism portion, the prism portion representing contribution of the corresponding device to the prism of the generated lens, for further interaction of each device with the lens blank during the operation of surfacing.

    Blocking device for a semi-finished optical element
    9.
    发明授权
    Blocking device for a semi-finished optical element 有权

    公开(公告)号：US12168278B2

    公开(公告)日：2024-12-17

    申请号：US16608955

    申请日：2018-06-12

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Sébastien Pinault ,  Luc Martin ,  Jérôme Moine ,  Xavier Bultez

    IPC: B24B13/005 ,  B24B9/14 ,  B24B13/01 ,  B24B41/06 ,  B29D11/00

    Abstract: The blocking device includes a blocking portion configured for blocking the semi-finished optical element and including a support member configured for providing a rigid support to the semi-finished optical element, the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, the support element assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the support member having a contact face onto which the first face of the semi-finished optical element is to be applied; saind blocking portion including at least one of a heating device configured for heating the support element above the predetermined temperature and a cooling device configured for cooling the support element below the predetermined temperature.

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