公开(公告)号：US11982879B2

公开(公告)日：2024-05-14

申请号：US17048703

申请日：2019-04-23

Applicant: Essilor International

Inventor： Gildas Marin ,  Richard Legras ,  David Rio

IPC: G02C7/02

CPC classification number: G02C7/027

Abstract: A method implemented by a computer means includes: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; and correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent the lens design is adapted to the user from the correlation.

公开(公告)号：US20240115126A1

公开(公告)日：2024-04-11

申请号：US18546158

申请日：2022-01-13

Applicant: Essilor International

Inventor： Guillaume TATUR ,  Laurent CALIXTE ,  Sébastien FRICKER

IPC: A61B3/00 ,  G16H50/50

CPC classification number: A61B3/0025 ,  G16H50/50

Abstract: A device for evaluating visual equipment models corresponding to real visual equipments. The device includes at least one input adapted to obtain parameters including a prescription for a given human wearer of any one of the real visual equipments, a set of ophthalmic lenses pre-selected on the basis of those parameters, at least one processor configured, for each pre-selected ophthalmic lens, to obtain a visual equipment model including a virtual ophthalmic lens defined by the same characteristics as the pre-selected ophthalmic lens, obtain a wearer model from the parameters, the visual equipment model cooperating with the wearer model, obtain an environment and visual task model including a sequence of points to be looked at by the wearer model, and evaluate a performance of the visual equipment model worn by the wearer model and combined with the environment and visual task model.

公开(公告)号：US20240111179A1

公开(公告)日：2024-04-04

申请号：US18537550

申请日：2023-12-12

Applicant: Essilor International

Inventor： Marius PELOUX ,  Cecile PETIGNAUD ,  Konogan BARANTON ,  Benjamin ROUSSEAU ,  Bruno FERMIGIER

IPC: G02C7/08 ,  A61B3/113 ,  G02B27/00

CPC classification number: G02C7/083 ,  A61B3/113 ,  G02B27/0093 ,  G02C11/10

Abstract: An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25D when the vision data passes from one range of vision distance and/or direction to another.

公开(公告)号：US11938695B2

公开(公告)日：2024-03-26

申请号：US17239422

申请日：2021-04-23

Applicant: Essilor International

Inventor： François Olivieri

IPC: B29D11/00 ,  B29C39/22 ,  B29L11/00

CPC classification number: B29D11/00432 ,  B29C39/22 ,  B29D11/00413 ,  B29L2011/0016

Abstract: A de-taping machine for removing a tape around a lens-mold-assembly. The machine including a lens-mold-assembly-rotation mechanism for holding and rotating the lens-mold-assembly and a tape gripping mechanism. The tape gripping mechanism including a first jaw having a clamping surface; a second jaw movable towards the first jaw for clamping a free end of the tape; a proximity sensing arrangement to generate a first detection signal when the free end of the tape is at a pre-determined distance from the first jaw; and a contact sensing arrangement to generate a second detection signal when the tape is in contact with the first jaw. A rotational speed of the lens-mold-assembly-rotation may be varied based on the first detection signal. Further, the lens-mold-assembly-rotation mechanism may be stop and the tape gripping mechanism may move the second jaw for clamping based on the second detection signal. A corresponding method for tape removal.

公开(公告)号：US11938693B2

公开(公告)日：2024-03-26

申请号：US17174795

申请日：2021-02-12

Applicant: ESSILOR INTERNATIONAL

Inventor： Wimon Kidwas ,  Nelson Morales

IPC: B29D11/00 ,  B29C33/30 ,  B29C39/36 ,  B29L11/00

CPC classification number: B29D11/00221 ,  B29C33/303 ,  B29C39/36 ,  B29D11/00432 ,  B29L2011/0016

Abstract: A machine for disassembling a lens mold assembly including a first mold part, a second mold part, and a molded-lens sandwiched therebetween. The machine includes a centering unit to center the lens mold assembly. The machine includes a disassembling module having a mold engagement mechanism to engage the first and second mold parts to clamp and move the lens mold assembly. The disassembling module includes a molded-lens holder mechanism having at least two clamping members to clamp the molded-lens of the lens mold assembly. The machine includes an alignment guidance module to detect relative positions between the molded lens of the lens mold assembly and the molded-lens holder mechanism to align the molded lens for clamping by the molded-lens holder mechanism. The mold engagement mechanism is configured to hold the first and second mold parts individually and to separate the first and second mold parts from the molded lens.

公开(公告)号：US11927831B2

公开(公告)日：2024-03-12

申请号：US17279973

申请日：2019-09-24

Applicant: ESSILOR INTERNATIONAL

Inventor： Sylvain Chene

IPC: G02C13/00 ,  A61B3/11 ,  H04N23/611

CPC classification number: G02C13/005 ,  A61B3/111 ,  H04N23/611

Abstract: Disclosed is a method wherein the following steps are performed: a) the subject is placed in a natural posture, in which at least one of the gaze directions of the subject points to a visual target, b) an image capture apparatus is placed between the head of the subject and the visual target, c) the relative posture of the image capture apparatus and head of the subject is adjusted in order for the pupil of the image capture apparatus to be positioned close to the gaze direction of at least one of the eyes of the subject, d) an image of the head of the subject is captured, and e) the at least one geometrico-morphological parameter is deduced from this image.

公开(公告)号：US20240075698A1

公开(公告)日：2024-03-07

申请号：US18502470

申请日：2023-11-06

Applicant: Essilor International

Inventor： Zbigniew TOKARSKI ,  Eric BEGG ,  Ahmed DRAMMEH ,  Hao-Wen CHIU

IPC: B29D11/00 ,  B29B11/02

CPC classification number: B29D11/0048 ,  B29B11/02 ,  B29K2101/12

Abstract: The present disclosure includes systems, apparatuses, and methods for an optical system. In some aspects, the systems and devices may produce a wafer for use in the manufacture of an optical article. The wafer includes a laminate having a first layer that includes a first matrix material having a lower surface and an upper surface opposite the lower surface and a second layer that includes a second matrix material, the second layer is coupled to the first layer and covers at least a portion of the lower surface or the upper surface. The first layer includes a first thickness at a central portion that is greater than a second thickness at an edge portion.

公开(公告)号：US20240069366A1

公开(公告)日：2024-02-29

申请号：US18260164

申请日：2021-12-29

Applicant: Essilor International

Inventor： Julien ANDOCHE ,  Estelle NETTER ,  Fabien MURADORE ,  Xin Pei ZHOU

IPC: G02C13/00 ,  G06V40/16 ,  G06V40/18

CPC classification number: G02C13/005 ,  G06V40/171 ,  G06V40/172 ,  G06V40/193 ,  G06V40/197

Abstract: The present disclosure relates to a method and device for evaluating a fit of visual equipment. In an embodiment, the method (105) includes receiving (110) an image(s) of a face of a user, identifying (115) a subset of eyeglasses from a database that satisfy a preliminary fit threshold, determining (120) an eyeglass rim plane of a candidate eyeglass, determining (125) an eyeglass pads plane of the candidate eyeglass, generating (130) at least one 2D profile of a nose of the user, generating (140) at least one 2D profile of a nasal section of a frame of the candidate eyeglass, virtually docking (150) the candidate eyeglass on the nose of the face of the user, calculating (170), when the virtually docked candidate eyeglass satisfies a secondary fit threshold, a final fit of the virtually docked candidate eyeglass, the final fit being defined by at least one of a comfort criterion and/or an aesthetic criterion.

公开(公告)号：US11899286B2

公开(公告)日：2024-02-13

申请号：US16976654

申请日：2019-03-01

Applicant: Essilor International

Inventor： Matthieu Guillot ,  Björn Drobe

IPC: G02C7/06 ,  G02C7/02 ,  G02B3/04 ,  G02C7/08

CPC classification number: G02C7/022 ,  G02B3/04 ,  G02C7/06 ,  G02C7/061 ,  G02C7/066 ,  G02C7/086 ,  G02C2202/20 ,  G02C2202/24

Abstract: A lens element worn in front of an eye of a person includes a refraction area having a refractive power based on a prescription for the eye of the person, and a plurality of at least three optical elements, wherein the optical elements are configured so that along at least one section of the lens the mean sphere of optical elements increases from a point of the section towards the peripheral part of the section.

公开(公告)号：US20240042683A1

公开(公告)日：2024-02-08

申请号：US18269087

申请日：2021-12-21

Applicant: ESSILOR INTERNATIONAL

Inventor： Maxime LECOMPERE

IPC: B29C64/135 ,  B33Y10/00 ,  B29C64/255 ,  B29C64/393 ,  B33Y50/02 ,  B33Y80/00

CPC classification number: B29C64/135 ,  B33Y10/00 ,  B29C64/255 ,  B29C64/393 ,  B33Y50/02 ,  B33Y80/00

Abstract: The disclosure relates to a method and a device for the production of an optical element from a curable material by using an additive manufacturing technology. According to the disclosure, this method comprises: A—providing a curable material; B—curing said curable material inside sliced outlines (C1) whose geometry are determined according to the geometry of said optical element, said optical element comprising at least: a first volume element (V1) and a second volume element (V2), by forming the first volume element (V1) by irradiating the curable material with at least a first curing surface energy (E1) with a first light depth penetration value within the curable material (Dp1), and forming the second volume element (V2) by irradiating the curable material with at least a second curing surface energy (E2) with a second light depth penetration value within the curable material (Dp2), wherein said second light depth penetration value within the curable material (Dp2) is different from the first light depth penetration value within the curable material (Dp1).