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    Method and system for outputting a manufacturing file for producing an optical element
    1.
    发明授权
    Method and system for outputting a manufacturing file for producing an optical element 有权

    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.

    RETINOSCOPIC AID DEVICE
    2.
    发明申请
    RETINOSCOPIC AID DEVICE 有权

    公开(公告)号：US20250072750A1

    公开(公告)日：2025-03-06

    申请号：US18826993

    申请日：2024-09-06

    Applicant: ESSILOR INTERNATIONAL

    Inventor： Didier GRAND-CLEMENT

    IPC: A61B3/103

    Abstract: A retinoscopic aid device for use with a portable streak retinoscope and with an automated phoropter for testing an individual's eye. The retinoscopic aid device includes a base plate configured to be detachably fastened to the automated phoropter, an optical display unit configured to display an orientable straight line mark, the optical display unit being supported by the base plate, and a control unit of the optical display unit which is configured to orient the straight line mark of the optical display unit according to a control command of a user allowing the user to orient the straight line mark according the streak orientation of the portable streak retinoscope when looking through the portable retinoscope.

    Method and system for predicting an eye gazing parameter and an associated method for recommending visual equipment
    3.
    发明授权
    Method and system for predicting an eye gazing parameter and an associated method for recommending visual equipment 有权

    公开(公告)号：US12235520B2

    公开(公告)日：2025-02-25

    申请号：US17424370

    申请日：2020-01-16

    Applicant: Essilor International

    Inventor： Konogan Baranton ,  Aurélie Le Cain ,  Sébastien Fricker

    IPC: G02C13/00

    Abstract: This method for predicting at least one eye gazing parameter of a person wearing visual equipment includes steps of: measuring data of at least two individuals wearing visual equipment, such data including at least head motion parameters and eye gazing parameters of the individuals; measuring head motion parameters of the person in real-life conditions; comparing the head motion parameters of the person with the head motion parameters of the at least two individuals; and predicting the at least one eye gazing parameter of the person at least on the basis of the results of the comparing step and of the eye gazing parameters of the at least two individuals.

    MANUFACTURING OF HIGH TRANSPARENT ARTICLES USING FDM 3D PRINTING
    7.
    发明申请
    MANUFACTURING OF HIGH TRANSPARENT ARTICLES USING FDM 3D PRINTING 有权

    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.

    METHOD AND DEVICE FOR OBJECTIVELY DETERMINING THE OPTIMAL CORRECTION OF AN OPHTHALMIC REFRACTION OF A SUBJECT
    8.
    发明申请
    METHOD AND DEVICE FOR OBJECTIVELY DETERMINING THE OPTIMAL CORRECTION OF AN OPHTHALMIC REFRACTION OF A SUBJECT 有权

    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).

    Methods and systems for optimizing an optical function of a progressive ophthalmic lens under specific wearing conditions
    10.
    发明授权
    Methods and systems for optimizing an optical function of a progressive ophthalmic lens under specific wearing conditions 有权

    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

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