公开(公告)号：US20220118705A1

公开(公告)日：2022-04-21

申请号：US17310739

申请日：2020-02-21

Applicant: Essilor International

Inventor： Maxime LECOMPERE ,  Pierre LEITE ,  Manuel THEODET

IPC: B29C64/282 ,  B29C64/112 ,  B29C64/124 ,  B29C64/232 ,  B29C64/393 ,  B29D11/00 ,  B29C64/245

Abstract: A method for manufacturing an optical element (100) from a curable material (50) using an additive manufacturing technology comprising steps of: providing a first portion of curable material (50), forming a first part of the optical element by irradiating the surface (55) of the curable material with a first curing surface energy, the first curing surface energy being strictly lower than a first predetermined energy threshold and higher than a second predetermined threshold, and forming, after the irradiation of the first part with the first curing surface energy, at least a second part of the optical element, distinct from the first part of the optical element, by irradiating, with at least a second curing surface energy, the surface of the curable material, the second curing surface energy irradiating both the second part of the optical element (100) and at least a portion of the first part of the optical element, the sum of the first curing surface energy and the at least second curing surface energy being higher than or equal to the first predetermined energy threshold. A manufacturing system (1) for manufacturing an optical element.

公开(公告)号：US20230041524A1

公开(公告)日：2023-02-09

申请号：US17788031

申请日：2020-12-23

Applicant: Essilor International

Inventor： Maxime LECOMPERE ,  Pierre LEITE ,  Jean-Marc PADIOU ,  Manuel THEODET

IPC: B29C64/124 ,  B33Y10/00

Abstract: A method of manufacturing an optical component having at least one optical function, comprising: —manufacturing using an additive manufacturing process at least part of an optical element (40) by depositing a plurality of pre-determined volume elements (14) of polymerizable material, a part of the optical element (40) being configured to provide at least a part of the optical function of an optical component, said additively manufacturing being performed such that the optical element (40) comprises an unfinished peripheric surface (42), said unfinished peripheric surface (42) having a relief pattern (44) formed by traces of the additive manufacturing process and having at least one depression (18) with regard to another part of the peripheric surface (42), —coating said unfinished peripheric surface (42) with a layer (50) of coating liquid (46) configured to at least partially fill the at least one depression (18).

公开(公告)号：US20200215747A1

公开(公告)日：2020-07-09

申请号：US16625267

申请日：2017-06-30

Applicant: NIKON CORPORATION ,  Essilor International ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE HAUTE-ALSACE (UHA)

Inventor： Olivier SOPPERA ,  Manuel THEODET

IPC: B29C64/135 ,  A61F2/16 ,  G02B1/04 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y30/00 ,  B29C64/264

Abstract: A method of producing an optical device from a volume of a curable composition, includes the following steps: —polymerizing a first portion of the volume by irradiating an external surface of the volume with a light irradiation, thereby increasing a transmittance of the first portion for the light irradiation; —polymerizing a second portion of the volume by irradiating the second portion with the light irradiation through the external surface and the polymerized first portion, wherein the light irradiation has a light intensity varying over the external surface between a first light intensity and a second light intensity distinct from the second light intensity. A corresponding system is also described.

公开(公告)号：US20210387431A1

公开(公告)日：2021-12-16

申请号：US17283354

申请日：2019-10-04

Applicant: ESSILOR INTERNATIONAL

Inventor： Thierry BAUDART ,  Manuel THEODET

IPC: B29D11/00 ,  G02C7/02 ,  B29C64/386

Abstract: A method of manufacturing an optical lens included the following steps: receiving optical data representing at least a characteristic of an optical correction provided by the optical lens; receiving process data representing at least one characteristic of an additive manufacturing method used to manufacture the optical lens, the process data defining at least an equipment involved in the additive manufacturing method; based on the optical data and on the process data, determining manufacturing data usable by an additive manufacturing machine implementing the additive manufacturing method; and—manufacturing the optical lens by the additive manufacturing machine using the manufacturing data. A corresponding system is also described.

公开(公告)号：US20170349757A1

公开(公告)日：2017-12-07

申请号：US15538956

申请日：2014-12-23

Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERAL D'OPTIQUE) ,  NIKON CORPORATION ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS

Inventor： Manuel THEODET ,  Cyril AYMONIER

IPC: C09C1/36 ,  C09C1/40 ,  C09C1/24 ,  B01J3/00 ,  C09C1/04 ,  C01B13/14 ,  C09C3/08 ,  C09C1/30

CPC classification number: C09C1/3669 ,  B01J3/006 ,  B01J3/008 ,  C01B13/145 ,  C01B13/366 ,  C01G23/053 ,  C01G25/02 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/64 ,  C09C1/043 ,  C09C1/24 ,  C09C1/3063 ,  C09C1/407 ,  C09C3/08 ,  Y02P20/544

Abstract: The invention concerns a continuous flow process for manufacturing surface modified metal oxide nanoparticles by supercritical solvothermal synthesis in an reaction medium flowing within a continuous flow chamber, said continuous flow chamber containing a hydrolysis area and a supercritical area, said process comprising the introduction of a flow of metal oxide precursor into the continuous flow chamber at a point P located in the hydrolysis area or in the supercritical area, and the introduction of a flow of is located downstream of P1 with respect to the flow direction, as well as the device for carrying out this process.