公开(公告)号：US11511483B2

公开(公告)日：2022-11-29

申请号：US16618521

申请日：2017-06-30

Applicant: NIKON CORPORATION ,  Essilor International

Inventor： Manuel Theodet

IPC: B29C64/135 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y30/00 ,  B29K63/00

Abstract: Disclosed is a method for manufacturing an article made of a polymerized material including the steps of: —providing a vat of polymerizable material, transparent at least in the 400-800 nanometers wavelengths range, —irradiating the polymerizable material with a laser beam according to a predetermined pattern so as to polymerize the polymerizable material in order to form the article, the predetermined pattern being determined based on a three-dimension representation of the article with the positions in three dimensions of a plurality of volume units adapted to form together the article, the laser beam scanning the vat in three dimensions in order to be focused at each position of the volume units present in the predetermined pattern so as to initiate locally the polymerization of the polymerizable material at each of these positions.

公开(公告)号：US12248298B2

公开(公告)日：2025-03-11

申请号：US17621514

申请日：2020-06-23

Applicant: Essilor International

Inventor： Maxime Lecompere ,  Pierre Leite ,  Manuel Theodet ,  Loïc Quere

IPC: G05B19/4099

Abstract: The invention relates to a method for outputting a manufacturing file for producing an optical element (100) from a curable material (50) by using an additive manufacturing technology, comprising the steps of:—acquiring the desired geometry of the optical element,—obtaining a discretization of the desired geometry in volume units described by data relative to position parameters of the volume units and to the dimension of the volume units,—associating at least a volume unit with a kinetic parameter that relates to the curing pace imposed to the curable material of the volume unit,—producing, using at least one processor, a manufacturing file comprising said data and said kinetic parameter for manufacturing at least the optical element, and—outputting said manufacturing file.

公开(公告)号：US11548215B2

公开(公告)日：2023-01-10

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 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/264 ,  A61F2/16 ,  G02B1/04 ,  B29K33/00 ,  B29L11/00

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：US11975488B2

公开(公告)日：2024-05-07

申请号：US17310739

申请日：2020-02-21

Applicant: Essilor International

Inventor： Maxime Lecompere ,  Pierre Leite ,  Manuel Theodet

IPC: B29C64/124 ,  B29C64/112 ,  B29C64/232 ,  B29C64/245 ,  B29C64/282 ,  B29C64/393 ,  B29D11/00 ,  B29L11/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: B29C64/282 ,  B29C64/112 ,  B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/393 ,  B29D11/00442 ,  B29L2011/0016 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00

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：US12023864B2

公开(公告)日：2024-07-02

申请号：US17310739

申请日：2020-02-21

Applicant: Essilor International

Inventor： Maxime Lecompere ,  Pierre Leite ,  Manuel Theodet

IPC: B29C64/124 ,  B29C64/112 ,  B29C64/232 ,  B29C64/245 ,  B29C64/282 ,  B29C64/393 ,  B29D11/00 ,  B29L11/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: B29C64/282 ,  B29C64/112 ,  B29C64/124 ,  B29C64/232 ,  B29C64/245 ,  B29C64/393 ,  B29D11/00442 ,  B29L2011/0016 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y80/00

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.