公开(公告)号：US20210187690A1

公开(公告)日：2021-06-24

申请号：US16755059

申请日：2018-10-08

Applicant: Essilor International

Inventor： Sébastien PIRAUBE ,  Xavier BULTEZ ,  Jérome MOINE

IPC: B24B13/005 ,  B24B9/14

Abstract: In a method of preparing a lens blank for a surfacing operation, the lens blank is fastened to a support with a base and a support material via which the lens blank is fastened. The support material has a circular periphery. The surfacing transforms the lens blank into a surfaced lens. The method includes: determining the surfaced lens shape based on input data; based on the surfaced lens shape, determining a maximum diameter of the support material shape based on a predetermined maximum thickness defining the maximum thickness of the support material allowed to be cut into during the surfacing of the lens blank; choosing a diameter for the support material shape ≤the maximum diameter for further fastening the lens blank to the support by forming the support material so the support material shape has a diameter corresponding to the chosen diameter.

公开(公告)号：US20240351292A1

公开(公告)日：2024-10-24

申请号：US18758116

申请日：2024-06-28

Applicant: Essilor International

Inventor： Jérôme MOINE ,  Mathieu FEUILLADE ,  Xavier BULTEZ

IPC: B29C64/40 ,  B29C64/124 ,  B29L11/00 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/40 ,  B29C64/124 ,  B33Y10/00 ,  B33Y30/00 ,  B29L2011/0016

Abstract: A method for manufacturing an ophthalmic lens using an additive manufacturing technology, the ophthalmic lens having at least one useful optical surface and a peripheral region surrounding at least in part the useful optical surface, includes the steps of: providing a support; manufacturing a part of the ophthalmic lens including a portion of the peripheral region, and being in contact with the support by the portion of the peripheral region so that the support bears the part of the ophthalmic lens being manufactured while the useful optical surface is free from any contact with the support. A support designed to bear an ophthalmic lens and a manufacturing system are also described.

公开(公告)号：US20220371147A1

公开(公告)日：2022-11-24

申请号：US17763978

申请日：2020-09-24

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien PINAULT ,  Luc MARTIN ,  Caroline HO ,  Xavier BULTEZ ,  Jerome MOINE

IPC: B24B9/14 ,  B24B13/005

Abstract: A blocking device for positioning and blocking an optical element to an insert at a given position, including an insert having a surface intended to be blocked against a face of the optical element with a glue material, the insert being positioned in respect with a blocking station; at least three pins to support the optical element at the given position, wherein the height of the extremity of each pin is adjustable independently of each other, the extremities being configured to position the optical element at the given position; and a locking device to hold the position of the optical element at the given position while the glue material is solidifying, the locking device including a lock associated with each pin.

公开(公告)号：US20210138603A1

公开(公告)日：2021-05-13

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.

公开(公告)号：US20210187863A1

公开(公告)日：2021-06-24

申请号：US16756868

申请日：2018-10-18

Applicant: Essilor International

Inventor： Jérôme MOINE ,  Mathieu FEUILLADE ,  Xavier BULTEZ

IPC: B29C64/40 ,  B29C64/124 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method for manufacturing an ophthalmic lens using an additive manufacturing technology, the ophthalmic lens having at least one useful optical surface and a peripheral region surrounding at least in part the useful optical surface, includes the steps of: providing a support; manufacturing a part of the ophthalmic lens including a portion of the peripheral region, and being in contact with the support by the portion of the peripheral region so that the support bears the part of the ophthalmic lens being manufactured while the useful optical surface is free from any contact with the support. A support designed to bear an ophthalmic lens and a manufacturing system are also described.

公开(公告)号：US20200180100A1

公开(公告)日：2020-06-11

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

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：US20200156324A1

公开(公告)日：2020-05-21

申请号：US16621841

申请日：2018-06-19

Applicant: Essilor International

Inventor： Laurent CHABIN ,  Xavier BULTEZ ,  Guy SCHOTT

IPC: B29C64/40 ,  B33Y10/00 ,  B33Y80/00

Abstract: An optical element includes an optical lens produced by an additive manufacturing method and a holder formed at least in part with the optical lens by the additive manufacturing method. The holder is adapted for cooperation with a manufacturing machine to thereby position the optical lens at a predetermined position in the manufacturing machine. A corresponding assembly and a method of manufacturing an optical element are also described.

公开(公告)号：US20210308818A1

公开(公告)日：2021-10-07

申请号：US17267145

申请日：2019-08-08

Applicant: ESSILOR INTERNATIONAL

Inventor： Luc MARTIN ,  Xavier BULTEZ ,  Sebastien PINAULT ,  Michael MAUDERER ,  Holger SCHÄFER ,  Jérôme MOINE ,  Michael KREIS

IPC: B24B13/01

Abstract: Method for machining an optical surface of an optical lens, including: a lens blank providing step, during which a lens blank blocked on a lens blocker is provided; a clamping step, during which the lens blocker is clamped in a lens machining device; a tilting step, during which the lens blank and lens blocker are tilted relative to the rotation axis of the lens machining device; a surface position determining step, during which the position of the surface to be machined is determined based on the tilt angle of the lens blank and lens blocker relative to the rotation axis of the lens machining device; and a machining tool configuration step, during which the operational parameters of the lens machining tool are configured to manufacture the surface to be manufactured according to the determined surface position so the desired optical properties of the optical lens are respected.

公开(公告)号：US20210114160A1

公开(公告)日：2021-04-22

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

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：US20200276684A1

公开(公告)日：2020-09-03

申请号：US16754222

申请日：2018-10-08

Applicant: Essilor International

Inventor： Sebastien PIRAUBE ,  Fred ADOLOFO ,  Alain MATHIEU ,  Xavier BULTEZ ,  Jerome MOINE

IPC: B24B13/005

Abstract: A method of preparing a lens blank for a further operation of surfacing to transform the lens blank into a surfaced lens for further transformation into a lens having a lens shape, the operation of surfacing including processing the lens blank so that the surfaced lens exhibits a crib diameter, the method being implemented using a processing module and comprising: based on input data (ID) which define the lens shape, defining a temporary crib diameter (Dtemp) so that said temporary crib diameter satisfies a set of constraints which includes at least: a first constraint whereby the temporary crib diameter (Dtemp) is large enough for the surfaced lens having said temporary crib diameter to be suitable to be processed into said lens, a second constraint whereby the temporary crib diameter is large enough for the surfaced lens having said temporary crib diameter to include a plurality of reference points defined on the lens blank and which together identify an optical center of the lens, choosing the crib diameter as a function of the temporary crib diameter (Dtemp), said choosing the crib diameter being configured so that, when a step cribbing configuration is destined to be applied to the operation of surfacing, said crib diameter is chosen among at least one predetermined discrete value (Vali).