Essilor International (compagnie Generale D'optique)

Essilor International

Essilor International (compagnie General D'optique)

Shanghai University

Essilor International Compagnie

Peiqi Jiang

Steven Weber

Yassin Yusef Turshani

Fadi O Adileh

Bruce Keegan

Gilbert Menduni

Gilles Widawski

Marvin Pounders

Haipeng Zheng

Ronald A Berzon

Gabriel Keita

Leanirith Yean

Gilles Baillet

Zbigniew Tokarski

Alexandra Roos

Aref Ben Ahmed Jallouli

Arnaud Glacet

Aref Jallouli

Haifeng Shan

John Biteau

Joey Oliveros Obordo

John Guerra

Hao-Wen Chiu

Jean-Marc Padiou

Sirisoma Wanigatunga

Elliot French

Cedric Begon

Liyi Shi

Jian Zhao

Srinivasan Balasubramanian

Pamela Anne McClimans

Steve Weber

Mark Hale

Danne Wright

Ahmed Drammeh

Eric Begg

Alain Goulet

Christopher Thai

Roy Karr

Cedric Bergon

Susie Wood

Christina Urbanski

St&eacute;phane Cabeza

Dengsong Zhang

Tingting Yan

Hongrui Li

Lois Warren

Gevan Peacock

A method of forming an ophthalmic laminate lens, includes: forming a planar laminate by adhering a first polycarbonate layer to a first side of a thermoplastic elastomer layer, and adhering a second polycarbonate layer to a second side of the thermoplastic elastomer layer, the first polycarbonate layer having a thickness greater than 250 μm, the second polycarbonate layer having a thickness greater than 250 μm, and the thermoplastic elastomer layer having a thickness in a range of 15 μm to 150 μm; thermoforming the planar laminate into a curved laminate, the curve laminate having a pre-molding curvature; arranging the curved laminate in a mold; and molding, via the mold set at a predetermined temperature and a predetermined pressure, the curved laminate with a polymer melt into a curved lens.

Method of preparing thick laminate wafers for wafer thermoforming and injection molding

An enhanced primer formulation that may be used in a variety of lens and film laminate applications is disclosed herein. The enhanced primer formulation may be used to enhance adhesion between a film or laminate and a polymerizable or polymerized material.

Cellulose triacetate (TAC) primer coating with improved adhesion

The present disclosure relates to a method of preparing a laminate or a laminated lens, comprising obtaining a first plastic substrate having a front surface and a back surface, treating the front surface of the first plastic substrate or the back surface of the first plastic substrate, and laminating a second plastic substrate on the treated front surface of the first plastic substrate or the treated back surface of the first plastic substrate. The treating may include applying a polyurethane resin to a surface of the first plastic substrate. The method may further comprise treating a surface of the second plastic substrate. The method may further comprise applying activator to the treated surfaces of the first plastic substrate and the second plastic substrate and laminating by apposing the treated surfaces of the first plastic substrate and the second plastic substrate.

Method of preparing a functional laminate

Disclosed are methods for preparing partially polarized optical articles. A polarizing element is used to cover at least a portion of the front surface of an optical article to form a polarizing zone and a non-polarizing zone on the optical article. The optical article is then tinted to produce a gradual color transition between the polarizing zone and non-polarizing zone of the optical article.

Method for making a gradient color polar lens with a non-polar near vision zone

The present disclosure includes systems, devices, and methods for preventing contamination during formation of an optical article. In some implementations, a device for preventing contamination of a mold cavity during injection molding of a function wafer includes a containment band having an annular base that defines a first opening configured to receive a functional wafer. The device also includes one or more sidewalls that project a first direction from and surround at least a portion of the first opening. The one or more sidewalls may be configured such that, during formation of an optical article, a first portion of the functional wafer is in contact with the one or more sidewalls.

Wafer holder band for mold injection process

Disclosed are methods () for preparing a laminate incorporable to a surface of an optical lens and methods () for incorporating the laminate on the surface of the optical lens. The laminate is prepared by laminating an optical film (), such as a polycarbonate film, on each side of a functional film using an adhesive that is capable of preventing optical defects in the laminates during a thermoforming process and an injection molding process. The adhesive has optimal thermomechanical properties that include that the optical film () coated with said adhesive has a modulus by compression greater than 6&#xd7;10Pa, and preferably greater than 2&#xd7;10Pa at a temperature from about 130&#xb0; C. to 150&#xb0; C. The laminate is incorporated on the optical lens via thermoforming followed by injection molding with overmolding technology.

Adhesive for PC-MOF application

Disclosed are methods for preparing a laminate incorporable to a surface of an optical lens. A front surface and/or back surface of a photochromic film or a functional film is pre-treated. A second thermoplastic film is then laminated on each pre-treated surface of the photochromic film or functional film using a water-based adhesive. The pre-treatment applied on the surface(s) of the photochromic film or functional film enables the formation of strong adhesion between the second thermoplastic film and the water-based adhesive.

Functional laminate using water-based adhesive, method for making such laminate, and lens using such laminate

The invention provides a method for manufacturing an ophthalmic article having at least one optical function and at least one predetermined transmission parameter, comprising the steps () of surfacing at least a first face of a first body of said article, made from a first material, according to a first geometry determined for providing said predetermined transmission parameters; and surfacing () at least a second face of a second body of said article, made from a second material, according to a second geometry determined at least according to said first geometry, for providing said optical.

Method for manufacturing an ophthalmic article

The invention concerns a method of manufacturing an ophthalmic lens, comprising the steps of providing, mounting and blocking a substrate () on a machining support unit (), surfacing an upper face () of said substrate, edging a peripheral edge () of said substrate, wherein said machining support unit comprises a surfacing member () and an edging member () which are separable, said surfacing member having a cavity () in which said edging member is located during said step of surfacing, said surfacing and edging members being configured so that said substrate is mounted and blocked on said machining support unit in a first predetermined position for the surfacing and the edging and, between said steps of surfacing and edging, the method comprises the step of withdrawing said surfacing member from said machining support unit by retaining said substrate on said edging member.

Method of manufacturing ophthalmic lenses and system for the manufacturing of such ophthalmic lenses

User configurable eyeglasses employing retention of lenses in eyeglass frames using elastic cushion connectors may include a pair of lenses, each lens comprising at least one tab extending from the lens. An eyeglasses frame may define at least two fittings, each fitting positioned to receive one tab extending from a lens and each fitting sized larger than the tab to be received. A plurality of eyeglass lens retention cushions are each adapted to be disposed in one of the fittings and to receive one of the tabs. Each eyeglass lens retention cushion might have an elastic cushion body having a relaxed, or in situ, exterior size larger than an interior socket of the fittings and may have an interior opening with a relaxed, or in situ, size smaller than a tab extending from an eyeglasses lens.

Systems and methods for retention of lenses in eyeglass frames using elastic cushion connectors

A polarizing structure comprising a polarizing film, a protective film provided on at least one face of the polarizing film with an adhesive layer which is a glyoxal-based adhesive or a water based polymer adhesive such as a PVOH-based adhesive layer, and wherein at least one face of said protective film oriented towards said polarizing film further comprises an adhesion primer structure. The adhesive avoids delamination of the polarizing structure, which withstands edging processing conditions, and which also show excellent dry peel force. Other aspects of the invention relates to a method for manufacturing such a polarizing structure, and a polarized ophthalmic lens comprising such polarizing structure.

Polarizing structure comprising a glyoxal adhesive system and polarized lens comprising it

A method of manufacturing an ophthalmic lens, includes the steps of providing, mounting and blocking a substrate () on a machining support unit (), surfacing an upper face () of the substrate, edging a peripheral edge () of the substrate, wherein the machining support unit includes a surfacing member () and an edging member () which are separable, the surfacing member having a cavity () in which the edging member is located during the step of surfacing, the surfacing and edging members being configured so that the substrate is mounted and blocked on the machining support unit in a first predetermined position for the surfacing and the edging and, between the steps of surfacing and edging, the method further includes the step of withdrawing the surfacing member from the machining support unit by retaining the substrate on the edging member.

Eyeglass lenses have at least a portion of their edge shaped to reflect light away from an eye of a wearer, such as the edge being disposed at an acute angle with respect to a principal axis of the lens, toward the back surface of the lens. Alternatively or additionally, the edge may include a plurality of edge surfaces disposed at an acute angle with respect to a principal axis of the eyeglass lens, toward the back surface of the eyeglass lens, or at least one edge surface may be disposed at an acute angle with respect to the front surface of the lens and at least one other edge surface may be disposed at an acute angle with respect to the back surface of the lens. As yet another alternative, the edge may be rounded with progressive angles to have an edge axis directed away from the wearer's eye.

Eyeglass lenses with minimized edge visibility

A self-service kiosk for dispensing eyewear is disclosed. The kiosk includes a display for depicting available frame and lens options to customers. A user interface accepts eyewear order information from a customer including the customer's prescription information and frame selection. The kiosk also includes a lens manufacturing device that is wholly contained within the kiosk for manufacturing optical lenses in the prescription of the customer, which are adapted for the selected frame. Further, the kiosk includes a dispensing mechanism for dispensing from the kiosk the manufactured lenses, along with the customer selected frame.

Automated eyewear kiosk

An optical adhesive product and a process for manufacturing an optical adhesive product, laminated film ensembles, and laminated lenses. The optical adhesive product includes a glyoxal water solution that is pH adjusted for use as an optical adhesive that demonstrates a wet peel force strength above about 6 Newtons. A water based polymer, such as PVOH, may be added to the adhesive system. According to the process, the glyoxal adhesive system is manufactured and utilized to laminate TAC-PVA-TAC films together to form a polar film ensemble. The polar film ensemble is laminated to an optical substrate and in the case of an ophthalmic lens, surfaced, coated and edged. The optical adhesive product avoids film separation in the polar TAC-PAV-TAC film ensemble during edging.

Glyoxal adhesive system and process for manufacturing the same

Growing community of inventors

Tarpon Springs, FL, United States of America

Peiqi Jiang