Essilor International

Essilor International (compagnie Generale D'optique)

Luc Martin

Sébastien Pinault

Xavier Bultez

Jérôme Moine

Sebastien Maurice

Mark Hale

Frédéric Dubois

Laurent Marcepoil

Brad J Gelb

Sébastien Maurice

Sebastien Pinault

Jérome Moine

Benoit Holvoet Vermaut

Roy Karr

Caroline Ho

Virginie Beccaro

Pamela McCLIMANS

Benoît Holvoet Vermaut

Saurphéa Suy

Sébastien Chailley

Michael Mauderer

Pamela Anne Mcclimans

Holger SCHÄFER

Michael Kreis

A method for blocking an optical element on an insert of a blocking device including: providing the insert of the blocking device, the insert being blocked in respect with the blocking device; providing thermoplastic material in a solid state in a first particulate form, the provided thermoplastic material having a feature included in an operating range; heating at least a part of the provided thermoplastic material at a temperature at which the thermoplastic material is in a melted state and flows under moderate pressure; providing on the insert an amount of the heated thermoplastic material for blocking one optical element; placing the optical element onto the thermoplastic material in the melted state; allowing the thermoplastic material to solidify, thereby blocking the optical element on the insert; converting the solidified thermoplastic material into a second particulate form, the converted thermoplastic material being intended to block another optical element.

Optical element blocking method and related device

A blocking device includes a support member configured for providing a rigid support to the semi-finished optical element, the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, and assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the support member having a contact face onto which the first face of the optical element is to be applied, the contact face of the support member being a surface of the support element, the shape-memory material being configured for having adherence properties with respect to the first face of the optical element, the adherence properties being sufficient for attaching the first face of the optical element to the contact face of the support element.

Device for adhesively blocking a semi-finished optical element

The blocking device includes a blocking portion configured for blocking the semi-finished optical element and including a support member configured for providing a rigid support to the semi-finished optical element, the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, the support element assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the support member having a contact face onto which the first face of the semi-finished optical element is to be applied; saind blocking portion including at least one of a heating device configured for heating the support element above the predetermined temperature and a cooling device configured for cooling the support element below the predetermined temperature.

Blocking device for a semi-finished optical element

A blocking device includes a support member configured for providing a rigid support to the semi-finished optical element, the support member having a contact face onto which a first face of the optical element is to be applied; and a pneumatic blocking member defining a cavity configured to be closed by the first face of the optical element, the pneumatic blocking member being configured to sustain a vacuum inside the cavity so that the optical element is attached to the blocking device; the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, and assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the contact face of the support member being a surface of the support element.

Device for pneumatically blocking a semi-finished optical element

The invention relates to a process for marking an optical eyeglass () equipped with a surface coating () comprising the following steps: A step of detreating by means of a laser beam, so as to locally detreat an area of the optical eyeglass by removing the surface coating () until a lower layer () of the eyeglass () is reached, which layer is located under said coating () and made of a material that is different from the surface coating (), thus forming at least one the detreated zone (), A step of depositing an ink () in the detreated zone () in order to form at least one inked pattern (), so that the ink () adheres to the lower layer () present at the bottom () of the detreated zone ().

Process for marking an optical eyeglass

A set includes a molding device having a molding face having the same shape as a contact face of the blocking device. A removable overlay of rigid material has a first face attached to a first face of the semi-finished optical element and a second face opposite to the first face having the same shape as the contact face of the blocking device, the set being configured for having a first subset configuration in which the second face of the removable overlay is in molding contact with the molding face of the molding device, then a second subset configuration in which the second face of the removable overlay is free and then a third subset configuration in which the second face of the removable overlay is retained in contact with the contact face of the blocking device.

Set including a semi-finished optical element and a blocking device; and a method for providing such a set

Disclosed is a method for testing the feasibility of a pair of spectacles, the pair of spectacles comprising an identified spectacle frame. The method includes steps of: a) acquiring a range of values of at least one first parameter relating to a spectacle wearer, in all of which range it is desired to ensure the feasibility of the pair of spectacles, b) acquiring a range of values of at least one second parameter that relates to a spectacle wearer and that is different from each first parameter, in all of which range it is desired to ensure the feasibility of the pair of spectacles, c) confirming, for a characteristic number of values of each second parameter, that the pair of spectacles is feasible whatever the value of each first parameter comprised in its range.

Method for testing the feasibility of a pair of spectacles

Described are systems and methods for controlling an ophthalmic lens edging machine are disclosed. The ophthalmic lens edging machine uses an edger code to select a macro or speed for a requested lens edging job. A system for creating and using the edger code may include a Lab Management System (LMS), a lens calculation system, and a lens edging machine. An edger code may be generated using lens data received from a lens management system and edging machine information identifying lens edging machines. The edger code comprises a plurality of characters. Each character is associated with a different feature of a requested edging job. The features of the requested edging job may include, for example, one or more of: a material type, a lens thickness, an edge type, a frame type, a lens coating, a lens shape, a lens ratio, a lens treatment, and an edging machine block type.

Ophthalmic lens edging process by calculation

A calculation system () for manufacturing an ophthalmic lens. A set of calculation modules (M, M, M, M) is associated to partial calculation in relation with manufacturing process of said ophthalmic lens. A managing unit (MU) is configured to: receive input data, and calculate output data through one or several iteration(s) of: determining one or several calculation module(s) to be activated, determining an order of activation of the one or several calculation module(s), and activating the determined one or several calculation module(s), in accordance with the determined order of activation. The managing unit transmits an indication that the output data have been calculated.

Calculation system for manufacturing an ophthalmic lens

A method and a computer system and its components for providing spectacles adapted to a future wearer. The method comprises the steps of: inputting in a computer system a first set of data (F) related to the wearer, comprising at least a prescription of the wearer, inputting in the computer system a second set of data (F) related to a spectacle frame chosen by the wearer. The computer system is provided with processing means for outputting, on the basis of the first and second sets of data, at least one set of data (S, S, . . . , SN) characterizing a pair of ophthalmic lenses adapted to the wearer and the chosen frame.

Growing community of inventors

Charenton-le-Pont, France

Luc Martin