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公开(公告)号:US20220274318A1
公开(公告)日:2022-09-01
申请号:US17623684
申请日:2020-07-01
Applicant: Essilor International
Inventor: Haifeng SHAN , Hao-Wen CHIU , Aref JALLOULI
IPC: B29C64/118 , B33Y70/00 , B33Y10/00
Abstract: The disclosure includes core-shell filament composition for additive manufacturing of ophthalmic lenses and ophthalmic lens components. The disclosure also includes a set of criteria for selecting core and shell thermoplastic combinations that exhibit high optical clarity, improved filament inter-strand diffusion, high inter-strand adhesion, and improved manufactured part strength when used in an additive manufacturing method like fused deposition modelling.
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公开(公告)号:US20220257109A1
公开(公告)日:2022-08-18
申请号:US17624678
申请日:2020-07-02
Applicant: ESSILOR INTERNATIONAL
Inventor: Adèle LONGO , Camille CATHALA , Gildas MARIN , Martha HERNANDEZ-CASTANEDA
Abstract: A method for inducing a controlled variation of accommodation in an eye of a subject, using an optical system arranged in front of at least one eye of the subject and including displaying an environmental scene, displaying, in this environmental scene, a target visible by the subject through said optical system, said target being displayed in such a way that it is perceived by the subject as moving away from said subject or moving towards said subject within said environmental scene, having the subject observe said moving target.
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103.
公开(公告)号:US20220252905A1
公开(公告)日:2022-08-11
申请号:US17626984
申请日:2020-07-02
Applicant: Essilor International
Inventor: Konogan BARANTON , Dikai NIU
Abstract: A system, method, and computer readable medium for determining at least one feature of at least one lens mounted in a spectacle frame. The system includes a non-point light pattern generating device configured to generate a predefined non-point light pattern, and arranged to have the predefined non-point light pattern reflected on the at least one lens, an image acquisition device configured to acquire an image of the spectacle frame including an image of the reflected non-point light pattern, and a processing unit configured to determine at least the contour of the at least one lens in function of at least one feature of the image of the reflected non-point light pattern.
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公开(公告)号:US20220244576A1
公开(公告)日:2022-08-04
申请号:US17689764
申请日:2022-03-08
Applicant: Essilor International
Inventor: Denis ROUSSEAU , Marie LORE , Guillaume BROUTIN , Jean SAHLER , Paul GIL
Abstract: A frame for a head mounted device including: a front part; a first temple configured to be electronically connected to the front part via a first connection and including a battery providing electrical power arranged in a cavity in the first temple and connected electrically to the first connection; a second temple configured to be electrically connected to the front part and having a cavity therein configured to receive therein at least one electronic module; and a second connection configured to connect electrically the battery of the first temple to the at least one electronic module of the second temple via the front part to receive power therefrom.
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公开(公告)号:US11360331B2
公开(公告)日:2022-06-14
申请号:US16625243
申请日:2018-06-21
Applicant: Essilor International
Inventor: Denis Rousseau , Denis Cohen Tannoudji
Abstract: A multifunctional device for an ophthalmic lens or ophthalmic lens blank, comprising an electrochromic layered module and an ophthalmic power layered module, both modules being on the same support layer.
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公开(公告)号:US20220171216A1
公开(公告)日:2022-06-02
申请号:US17442494
申请日:2020-03-23
Applicant: Essilor International
Inventor: Haifeng SHAN , Hao-Wen CHIU
Abstract: Disclosed are optical elements and the methods of producing the same. The optical element contains two or more near infrared absorbers mixed in an optical substrate, and one or more functional film disposed on the optical substrate. The method of producing the optical element comprises mixing two near infrared absorbers with different near infrared wavelengths absorption ranges and residual colors with a precursor of an optical substrate. The mixture is subsequently processed to produce an optical element that has broad near infrared wavelength absorption range, a high near infrared absorption level, and/or homogeneous color distribution.
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107.
公开(公告)号:US20220146372A1
公开(公告)日:2022-05-12
申请号:US17441493
申请日:2020-03-20
Applicant: ESSILOR INTERNATIONAL
Inventor: Sébastien FRICKER
Abstract: This device for evaluating a performance of a visual equipment for at least one wearer of that equipment to perform at least one visual task includes: at least one input adapted to obtain a model of a scene where the task is performed, a model of the task including a sequence of points to be looked at, a model of the wearer including a movable head and at least one rotationally movable eye; at least one processor configured for determining a head posture for at least one of the points so that the model of the wearer looks respectively at that point, determining at least one task-directed performance parameter for the wearer performing the task with the head posture for that point, on the basis of the wearer, scene and task models, providing the task-directed performance parameter for determining to which extent the equipment is appropriate for the wearer.
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公开(公告)号:US11324399B2
公开(公告)日:2022-05-10
申请号:US16622403
申请日:2018-06-15
Applicant: Essilor International
Inventor: Charles Lebrun , Cécile Petignaud , Alvin François
Abstract: A method for determining a pupillary distance of an individual, includes the following steps: —displaying an object on a screen located in front of the individual, the displayed object being positioned at a location in front of one eye of the individual; —instructing the individual to look with at least the eye at the displayed object; —acquiring at least an image of a part of the body of the individual including the eye; —determining the location of a plurality of specific features in the acquired image, one of the specific features being a pupil of the eye of the individual; and —calculating the pupillary distance based on the location of the plurality of specific features. A corresponding system is also described.
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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.
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公开(公告)号:US11305382B2
公开(公告)日:2022-04-19
申请号:US16704865
申请日:2019-12-05
Applicant: ESSILOR INTERNATIONAL
Inventor: Frédéric Dubois , Sébastien Maurice
IPC: B23K26/362 , B23K26/361 , B23K26/402 , B41M5/24 , G02C7/02 , B23K103/00
Abstract: A method for producing an ophthalmic lens includes a step of laser marking in order to produce permanent etchings on one surface of the lens, at least one predefined step subsequent to the marking step and implementing extreme thermal stress that is applied to the surface, and a step of determining an operating point (PF) of a laser marking machine (1) configured to implement the marking step from geometric characteristics (Di) of the etchings to be made, the determining step including the steps of determining (304) a value (CPM) representative of the deformation of the lens on at least one treatment area of the surface, from the stress and data relative to a predetermined material from which the lens is formed, and of deducing (308) the operating point from the value representative of deformation and from the geometric characteristics.
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