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.

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.

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.

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.