公开(公告)号：US20250003724A1

公开(公告)日：2025-01-02

申请号：US18701188

申请日：2022-10-17

Applicant: ESSILOR INTERNATIONAL

Inventor： Hugues AMEURLAIN ,  Laurent ROUSSEL ,  Francis JACQ

IPC: G01B5/20 ,  B24B9/14

Abstract: The invention relates to a method for determining the shape of a bezel (16) of an eyeglass frame rim (11), comprising: —a step of acquiring the shape of a longitudinal contour of the bezel, —a step of calculating or pointing out a position (θj) of one cross-section (Sj) to be felt along said longitudinal contour, and —a step of feeling at least a part of said cross-section (Sj) by moving a mobile feeler in said bezel.

公开(公告)号：US20200233235A1

公开(公告)日：2020-07-23

申请号：US16652756

申请日：2018-10-02

Applicant: Essilor International

Inventor： Laurent ROUSSEL ,  Jean-René AKBAL ,  Didier GRAND-CLEMENT ,  Olivier DECORCE

IPC: G02C7/02 ,  B24B9/14 ,  G01M11/02

Abstract: A system for monitoring the position of a blocking device on an ophthalmic lens (20) having at least one marking comprises: a mechanical structure adapted to cooperate with the blocking device; an image sensor (4) observing the ophthalmic lens (20); a control unit (10) connected to the image sensor (4) and configured to produce an image having a point of reference with a determined position with respect to the mechanical structure and at least part of the ophthalmic lens (20) including said marking; and a user interface (12) adapted to display a blocking device positional compensation proposal for an automatic positional compensation or for a manual positional compensation based on the comparison to a predetermined threshold of a distance between the point of reference and the marking on the image. A corresponding method and a method for edging an ophthalmic lens are also proposed.

公开(公告)号：US20230249308A1

公开(公告)日：2023-08-10

申请号：US18015494

申请日：2021-05-05

Applicant: ESSILOR INTERNATIONAL

Inventor： Laurent ROUSSEL ,  Hugues AMEURLAIN

IPC: B24B13/005 ,  B24B9/14

CPC classification number: B24B13/0055 ,  B24B9/144

Abstract: Disclosed is a centering apparatus including: a chassis; a holder mounted on the chassis, which is suitable for receiving an ophthalmic lens; and a centering unit mounted on the chassis, which includes: a camera for acquiring images of the ophthalmic lens when received on the holder, and a screen for displaying the images acquired by the camera and a centering target superimposed onto the images, the centering target including two coaxial and parallel outlines.

公开(公告)号：US20240151988A1

公开(公告)日：2024-05-09

申请号：US18549302

申请日：2022-03-07

Applicant: ESSILOR INTERNATIONAL

Inventor： Laurent ROUSSEL ,  Hugues AMEURLAIN ,  David HERFORT

IPC: G02C7/02 ,  B24B9/14 ,  B24B49/12

CPC classification number: G02C7/021 ,  B24B9/146 ,  B24B49/12

Abstract: Disclosed is a method for automatically centering an ophthalmic lens, including steps of: —positioning the ophthalmic lens on a holder; —acquiring at least one image of the ophthalmic lens received on the holder by means of a camera; and —processing the image to find the position of an optical center of the ophthalmic lens by means of a processing unit. According to the invention, the ophthalmic lens including several distinct centering markings distributed along a geometrical figure, the step of processing includes: —determining, for at least three of the centering markings, the position of at least one characterization point of each centering mark; and —deducing therefrom the position of the optical center of the ophthalmic lens.

公开(公告)号：US20220091438A1

公开(公告)日：2022-03-24

申请号：US17417285

申请日：2019-12-23

Applicant: ESSILOR INTERNATIONAL

Inventor： Hugues AMEURLAIN ,  Nicolas JAMET ,  Laurent ROUSSEL

IPC: G02C7/02 ,  G02C13/00 ,  B24B9/14

Abstract: The method includes the steps of: providing spectacles including a template eyeglass having a mounting portion inserted in a groove of an arc and being to be replaced by a prescription eyeglass having a step-back portion with the same conformation as the mounting portion; providing a set of visible marks on the template eyeglass independently of the arc; having an outline editor providing a visualization of the template eyeglass provided with the visible marks; determining through observation of the spectacles the location—with respect to the visible marks—of points of the arc from which the template eyeglass projects; entering on the provided visualization the so determined locations of the points of the arc; and outputting from the editor the data representative of an edited outline based on the point locations so entered on the provided visualization, whereby the edited outline is the outline of the shoulder.