Essilor International

Essilor International (compagnie Generale D'optique)

International Business Machines Corporation

Nikon Corporation

Essilor International (compagnie General D'optique)

Gerhard Keller

Richard Bosmans

Pascal Comble

Bruno Michel

Jean-Paul Cano

Heinz Schmid

Klaus Goedicke

Konogan Baranton

Dominique Conte

Volker Kirchhoff

Sébastien Fricker

Urs Kloter

Sidney Shaw White, Jr

Masafumi Mizuguchi

Estelle Netter

Sébastien Maurice

Aurélie Le Cain

Michèle Thomas

Annette Cretier

Philip John Rawlins

Gilles Massey

Christophe Provin

Jean-Claude Duon

Allan Carmichael

Kerim Yasan Arda

Frédéric Mouhot

Mary Jane New

J&ouml;m-Steffen Liebig

Wilson Basilio Morales, Jr

Walter Charles Braley

Jean-Fran&ccedil;ois Dufresne

Michel Mace

G&eacute;rard Willemin

Patrick Lametairie

Gilles Menges

Gerard Willemin

Gaku Asai

Philippe Vaneeckhoutte

A method for determining a position variation of an eyewear equipment worn by a wearer includes obtaining reference data representing a reference position of an eyewear equipment worn by the wearer, the eyewear equipment including at least one ophthalmic lens and a frame on which the at least one ophthalmic lens is mounted, determining at least one reference position parameter indicative of a reference position of the eyewear equipment on the face of the wearer based on the reference data, obtaining current data representing a current position of the eyewear equipment worn by the wearer, determining at least one current position parameter indicative of a current position of the eyewear equipment in front of the eyes of the wearer based on the current data, and comparing the reference and current positions parameters to determine a position variation of the eyewear equipment worn by the wearer.

Position variations of the lenses of an eyewear equipment

A method of manufacturing an optical article, wherein an output light flux generating process of generating an output light flux by inputting a light from a light source to an output setting element having a repetition structure; a cured layer forming process of forming a cured layer at an irradiation area that is formed in correspondence with the output area by introducing the output light flux through a projection optical system into a container in which light-curable resin is contained and a stage is arranged and condensing the output light flux; and a stage moving process of moving the stage in a desired distance along the direction of the output flux propagating, are sequentially performed in this order and an irradiation variation process of varying the irradiation area in the cured layer generating process are further included, thereby the optical article is formed on a surface of the stage.

Method of manufacturing optical article and optical shaping apparatus

Disclosed is a method for marking an optical article coated with an interference coating including at least two layers, an inner layer and an outer layer, and having reflection coefficient Re; by exposure of the inner layer, at a marking point, by way of a laser beam at a marking wavelength, in such a way as to ablate the inner layer and any layer further away from the substrate; the ablated area having a reflection coefficient Rm different from Re by at least 1%; the inner layer absorbing the marking wavelength to a greater degree than any layer further away from the substrate. Also disclosed is an optical article coated with an interference coating having at least two layers, an inner layer and an outer layer, the article including a marking pattern formed by local absence of layers.

Method for permanent visible marking of an optical article and marked optical article

A stamp for patterning onto a receiving surface of an object () according to a defined pattern (P) comprises a stamping surface () of a resilient diaphragm (). The stamping surface is planar at rest. The pattern is reproduced on the stamping surface and the diaphragm is affixed to a rigid body () along a peripheral edge, so that a middle part of the diaphragm can move along a direction perpendicular to the stamping surface. The diaphragm () is more flexible near the peripheral edge than in the middle part. Then, the pattern (P) printed on a pseudo-spherical receiving surface () using the stamp exhibits few distortion.

Stamp for patterning, method for manufacturing such stamp and method for manufacturing an object using the stamp

A method for marking an ophthalmic lens with a hydrophobic and/or oil-repellent low surface energy outer layer on a high surface energy substrate or coating. The method consists in: positioning a complementary patterning mask of the desired marking between the lens surface to be marked and an energizing discharge source capable of substantially eliminating the outer layer to as to expose the subjacent high energy substrate or coating. The temporary protective layer has a surface energy higher than that of the outer layer and a thickness less than about 5 nm, and preferably between 2 and 4 nm, thereby enabling the discharge to act on the outer layer through the temporary protective layer.

Method for obtaining a mark on a low surface energy ophthalmic lens

A process for making a mould piece having a main curved surface bearing an utilitary microstructure which comprises transferring a utilitary microstructure from a master piece main surface to a main surface of a flat cured elastomeric film; pressing the cured elastomeric film and a master article against each other so as to conform the overall shape of said cured elastomeric film to the curved shape of the main surface of the master article and to spread over a curable coating composition between the curved main surface of the master article and the main surface bearing the replica of the said utilitary microstructure of the cured elastomeric film; curing the coating composition; removing the cured elastomeric film and depositing a layer of a metal or a metallic alloy on the exposed main surface of the hard coating of the master article; and recovering said metal or metallic alloy layer to obtain a mould piece having a curved main surface bearing a replica of said transferred utilitary microstructure.

Process for making a mold piece having a main curved surface bearing a utilitary microstructure

The invention concerns a method which consists in a process known per se in producing, on the curved substrate () to be treated, a film of material derived from a specific material source (). The invention is characterized in that it consists in inserting, between the curved substrate () and the material source (), a mask () relative to the curved substrate (), preferably selecting as mask (), a mask comprising a ring-shaped part (). The invention is particularly useful for providing lenses with antiglare treatment.

Method for vacuum deposit on a curved substrate

An organic substrate having optically-active layers deposited by magnetron sputtering and a preparation process for it are provided. Gas pressure used for carrying out better adhesion by sputtering is high, comprised between 0.8 and 5.0 Pa. Sputtering is particularly suitable for targets of Si, Ti, Zr and organic substrates with or without anti-abrasive coating. Improved adhesion of thin films is obtained.

Organic substrate having optical layers deposited by magnetron sputtering and method for preparing it

The invention concerns a method for obtaining an ophthalmic lens comprising a surface utility microstructure, in in particular antiglare. The method for obtaining an ophthalmic lens comprising a surface utility microstructure consists in a step for transferring the microstructure into the lens surface from a mould whereof the internal surface bears the microstructure and has a sight correcting geometric design, the microstructure being initially determined by an interferential process. The invention is useful for making ophthalmic lenses.

Method for obtaining an ophthalmic lens comprising a surface utility microstructure and resulting ophthalmic lenses

The invention concerns a support of the type comprising at least a first base ( ), and, borne by the latter, for maintaining such an optical lens ( ) at its edge ( ), at least three support pins ( A, B). The invention is characterized in that the base comprises, for its own support, a plane support surface ( ) whereof the peripheral outline (P ) is globally circular, its radial dimension (D ) along a particular radius (R) of said support surface ( ) is at least equal to its axial dimension (D ) perpendicularly to the plane thereof. The invention is particularly useful for maintaining an optical lens in a processing apparatus using spin coating technique.

Optical lens support and method for using same

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Charenton le Pont, France

Gerhard Keller