公开(公告)号：US20250042082A1

公开(公告)日：2025-02-06

申请号：US18719670

申请日：2022-12-15

Applicant: ESSILOR INTERNATIONAL

Inventor： Haifeng SHAN

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/245 ,  B29C64/295 ,  B29L11/00 ,  B33Y10/00 ,  B33Y40/10

Abstract: A fused filament fabrication 3D printing method for fabricating an optical article includes applying a surface treatment (1710) to a building plate; heating the building plate to a predetermined plate temperature (1720); dispensing a thermoplastic through a nozzle set at a predetermined nozzle temperature onto the building plate (1730) while translating the nozzle or the building plate according to a first predetermined pattern at a predetermined printing speed to form a first layer; and solidifying the first layer, wherein a range of the predetermined plate temperature is between 30° C. lower than a glass transition temperature of the thermoplastic and 20° C. higher than the glass transition temperature of the thermoplastic, and a range of the predetermined nozzle temperature is at least 100° C. higher than the glass transition temperature of the thermoplastic, and at least 50° C. lower than a degradation temperature of the thermoplastic.

公开(公告)号：US20250040804A1

公开(公告)日：2025-02-06

申请号：US18564020

申请日：2022-05-24

Applicant: Essilor International

Inventor： Elisa TARTAGLIA ,  Guillaume GIRAUDET ,  Yannis CHENGUITI

IPC: A61B3/103 ,  A61B5/00 ,  A61B5/372 ,  A61B5/378

Abstract: A method for objectively determining the optimal correction of an optical refraction of a subject, comprising the steps of: a) providing said eye of the subject with successive distinct lens powers and recording the corresponding successive neural signals of the subject while said eye of the subject receives a visual stimulus through each lens power, until the recorded neural signal corresponding to one of the lens power shows a maximum neural activity as compared to all the other recorded neural signals (blocks E2 to E5), b) determining that the optimal correction of the ophthalmic refraction of the subject corresponds to a lens power with which the subject exhibits a neural signal showing a given reduced neural activity as compared to the maximum neural activity obtained in step a) (blocks E6 and E7).

公开(公告)号：US12216342B2

公开(公告)日：2025-02-04

申请号：US17294276

申请日：2019-11-06

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien Piraube ,  Kord Schrowangen ,  Charles Goodrum ,  Brad Gelb

IPC: G02C7/02 ,  G06N3/04

Abstract: This method for determining specification parameters used to manufacture an optical article includes steps of: training at least one neural network to predict the specification parameters, by using a training data set including a plurality of training prescription parameters and corresponding training specification parameters; and predicting specification parameters of the optical article by the at least one neural network, from prescription parameters relating to the optical article, on the basis of the training.

公开(公告)号：US12210223B2

公开(公告)日：2025-01-28

申请号：US17439941

申请日：2020-04-13

Applicant: ESSILOR INTERNATIONAL

Inventor： Cécile Petignaud ,  Marie-Gaelle Froeliger ,  Nacer Lakhchaf ,  Bénédicte Deldalle

IPC: G02C7/02 ,  G02C7/06

Abstract: Disclosed is a method for determining an optical function of a progressive ophthalmic lens for a wearer, including: providing a prescription of the wearer; providing wearing data including at least a numerical parameter; providing by at least one processor a set of predefined optical functions including at least a first predefined optical function adapted to the prescription of the wearer and to a first predefined wearing parameter and a second predefined optical function for the prescription of the wearer and to at least a second predefined wearing data parameter, the second predefined optical function being different from the first; and determining an optical function of the progressive ophthalmic lens, so: when the wearing data parameter≥a threshold value, the optical function of the lens=first predefined optical function, and when the wearing data parameter

公开(公告)号：US12198573B2

公开(公告)日：2025-01-14

申请号：US17441564

申请日：2020-03-20

Applicant: Essilor International ,  Sorbonne Université

Inventor： Denis Sheynikhovich ,  Richard Carrillo ,  Luca Leonardo Bologna ,  Youssouf Cherifi ,  Tianyi Li ,  Angelo Arleo ,  Konogan Baranton ,  Anne-Catherine Scherlen ,  Delphine Tranvouez-Bernardin

IPC: G09B23/32 ,  G06F30/27 ,  G09B23/30

Abstract: A device for simulating a behavior of a mammal in an environment by a virtual mammal includes a mobile head and at least one mobile eye including a first input for successive data representative of eye poses, a second input for mobility action instructions, a memory for storing information on the environment and on stabilization constraints, at least one processor assessing a current part of the environment and recording information on said current part, triggering successive movements of the head and of the eye(s) in function of said mobility action, controlling a dynamic adjustment of the successive movements of the eye(s) with respect to the successive movements of the head in function of the successive data and by using the stabilization constraints. The device further comprises a third input for training data representative of a training movement sequence of the head and the eye(s) associated with a training environment.

公开(公告)号：US12189212B2

公开(公告)日：2025-01-07

申请号：US17310304

申请日：2020-03-05

Applicant: ESSILOR INTERNATIONAL

Inventor： Daniel Spiegel

IPC: G02C11/00 ,  G02C5/00 ,  G02C7/10

Abstract: An eyewear, including a first receptacle and a second receptacle; a first lens element received in the first receptacle; and a light sensor configured to detect incident light and provide a sensor signal based on the detected incident light. The eyewear further includes an analysis module. The analysis module is operably coupled to the light sensor to receive the sensor signal from the light sensor, and operably coupled to the variable optical filter structure to provide a control signal to the variable optical filter structure. The analysis module is configured to control the optical state of the variable optical filter structure thereby adjusting an illuminance ratio of light transmitted by the first lens element to light transmitted at a position of the second receptacle. Further provided is a method for adjusting a variable optical filter system for an eyewear, and a method and computer program for controlling the eyewear.

公开(公告)号：US20250003053A1

公开(公告)日：2025-01-02

申请号：US18832580

申请日：2023-01-17

Applicant: Essilor International

Inventor： Olivier BEINAT

IPC: C23C14/24 ,  C23C14/26 ,  C23C14/50

Abstract: The invention concerns a physical vapor deposition machine for depositing a coating onto at least one article, comprising: an article support member disposed within a chamber and configured to receive a plurality of articles disposed thereto to be coated, at least one thermal evaporator in said chamber and configured to generate a flow of vaporized material to coat said plurality of articles with said flow of vaporized material, wherein said at least one thermal evaporator comprises: ·two electrical electrodes each electrically connected to an electrical generator, ·a cup for receiving material to be vaporized, said cup being formed by an electrically conductive material and configured to be in electrical contact with each of said two electrical electrodes to form an electrical circuit, said generator being configured to provide a current through said electrical circuit able to heat-up said cup so as to vaporize said material received into said cup.

公开(公告)号：US12173176B2

公开(公告)日：2024-12-24

申请号：US17247869

申请日：2020-12-28

Applicant: NIKON CORPORATION ,  ESSILOR INTERNATIONAL

Inventor： Mathieu Feuillade ,  Guillaume Cantagrel

IPC: C09D143/02 ,  C08F30/02 ,  C08F130/02 ,  C08F230/02 ,  C08G75/045 ,  C08G75/12 ,  C08K3/22 ,  C08K9/04

Abstract: Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

公开(公告)号：US20240412327A1

公开(公告)日：2024-12-12

申请号：US18698287

申请日：2022-11-17

Applicant: ESSILOR INTERNATIONAL

Inventor： Daniel SPIEGEL ,  Guillaume GIRAUDET

IPC: G06T5/20 ,  G02B27/01 ,  G06T5/10 ,  G06T11/00

Abstract: A computer-implemented method, an apparatus, a system and a computer program for controlling a sightedness impairment of a subject, the method comprising the steps of receiving (201) an image to display to the subject, determining (202) a spatial frequency power spectrum of the received image, generating (203) an intermediate image by modifying a slope of the spatial frequency power spectrum of the received image, generating (204) a modified image based on the intermediate image and commanding (205) a display to the subject of the modified image.

公开(公告)号：US12162230B2

公开(公告)日：2024-12-10

申请号：US17286259

申请日：2019-09-27

Applicant: Essilor International

Inventor： Matthieu Guillot ,  Mathieu Meynen ,  Hao-Wen Chiu ,  Christophe Plessis ,  Jeanne Marchal ,  Bjorn Drobe

IPC: B29D11/00 ,  G02B1/11 ,  G02B1/14 ,  G02B3/00

Abstract: The present disclosure includes optical articles comprising a lens having first and second lens surfaces and a protective layer having first and second protective surfaces that is coupled to the lens such that the first protective surface is disposed on the second lens surface. The optical article can comprise a plurality of convex or concave optical elements defined on the second lens surface or the first protective surface. The protective layer can have a maximum thickness larger than a maximum height of each of the optical elements such that the protective layer encapsulates the optical elements.