Essilor International

Essilor International (compagnie Generale D'optique)

Johnson and Johnson Vision Care, Inc.

Marc Silva

James Daniel Riall

Loic Quere

Jean-marc Padiou

Alexandre Gourraud

Mathieu Meynen

Pascal Allione

Cedric Begon

Eric Gacoin

Benoit Callier

Marc Reignault

Jean-Paul Cano

Samuel Archambeau

Gilles Le Saux

Jérôme Moine

Jerome Ballet

Olivier Roussel

Cyril Guilloux

Matthieu Guillot

Aude Bouchier

Ludovic Jouard

Jean-Marc Padiou

Carlos Rego

David Escaich

Pauline Colas

Bruno Amir

Stephane Gueu

Sira Uhalte Nogues

Frederic Arrouy

Berangere Granger

Christophe Jeannin

Willy Chaudat

Bernard Pons

Luis Ricardo Castro Martinez

Bruno Fauquier

Alexis Raposo

Hasana Sadiki

Jean Marc Cornier

Luis Ricardo Castro-Martinez

A method and device for determining an optical equipment adapted to a wearer and comprising an optical lens and a spectacle frame, the method including providing data relative to the wearer comprising optical requirements of the wearer, providing an optical cost function related to an optical function parameter of the optical lens and being defined based at least on part of the data relative to the wearer, providing a comfort cost function related to a comfort parameter, providing a mechanical interaction cost function that varies as a function of a geometrical parameter of spectacle frame and a geometrical parameter of optical lens, and determining an optical equipment that minimizes a global cost function, the global cost function being a weighted sum of all cost functions.

Method for determining an optical equipment adapted to a wearer and processing device for determining an optical equipment adapted to a wearer

A spectacle lens includes an activable optical filter having at least an electrochromic device and being configured to be actively switched between at least three configurations. In the first configuration, the activable optical filter is uniform. In the second configuration, the activable optical filter attenuates selectively light from a localized light source. In the third configuration, the activable optical filter is uniform. Furthermore, the chromaticity difference &#x394;Chrom between each of the configurations is smaller than or equal to 20.

Spectacle lens comprising an activable optical filter and optical equipment comprising such spectacle lens

A spectacle lens including an activable optical filter, the activable optical filter being configured to be actively switched between at least three configurations, wherein in the first configuration, the color perception of the spectacle wearer is unaltered, in the second configuration the activable optical filter provides a specific filtering function, in the third configuration vision of the spectacle wearer is protected against glare.

Spectacle lens comprising an activable optical filter

A method for providing a display device for an electronic information device configured to display a virtual image to a user, the electronic information device including an optical element having a nonzero optical power and configured to be positioned in front of an eye of a user, the display device including a light source and a guide element configured to guide optical beams emitted by the light source to the eye of the user to allow viewing of the virtual image, the method including: providing a value of a parameter of the virtual image; and determining an optimum value of a display parameter of the display device from at least one optical power at a point of the optical element and from the value of the parameter of the virtual image.

Method for providing a display unit for an electronic information device

An optical device for a wearer including an optical system with an active function configured to be mounted into a frame, a wafer comprising an internal face facing the optical system, the wafer being configured to be mounted into the frame, and holding means configured to maintain the optical system and the wafer in the frame without contact at least between a part of the optical system and the internal face of the wafer.

Optical device adapted for a wearer

Method for encapsulating at least partly a light-guide optical element in a transparent capsule, the method comprising at least: &#x2014;a transparent capsule providing step during which a transparent capsule is provided, &#x2014;a light-guide optical element providing step during which a light-guide optical element is provided, &#x2014;an adhesive deposing step during which an adhesive is deposited on at least part of a face of the transparent capsule and/or of a face of the light-guide optical element, &#x2014;a positioning step during which the transparent capsule and the light-guide optical element are positioned one relative to the other so as to form an optical system, &#x2014;a bonding step during which the light-guide optical element and the transparent capsule are made integral with the adhesive, wherein the method further comprises prior to the bonding step a control step during which at least one parameter of the optical system is controlled.

Method for encapsulating a light-guide optical element in a transparent capsule

Disclosed is a machining method by turning at least one surface of an ophthalmic lens, using a turning machine having at least one geometrical defect. The method includes a step (-) of determining a turning configuration for machining by turning the at least one surface of the ophthalmic lens, the turning configuration including turning parameters and machine defects parameters associated to the turning parameters.

Machining method by turning at least one surface of an ophthalmic lens, using a turning machine having at least one geometrical defect

An optical device adapted for a wearer includes an emitting system, a first wafer and a gap. The emitting system includes a halt conducting element configured to output a light through an exit face of the light conducting element towards an eye of the wearer. The first wafer includes an internal face facing the light conducting element. The gap is arranged between at least the exit face of the light conducting element and the wafer. The internal face of the wafer includes at least a curved surface facing the exit face and has a curvature greater than 0 D.

Method implemented by computer for determining an optical equipment including at least an optical lens and a spectacle frame, the lens being adapted to be mounted in the frame, the method including:

Method for determining an optical equipment

Disclosed is a method implemented by computer for determining a lens blank intended to be used for the manufacturing of a finished optical article. The method includes: &#x2014;a virtual volume data determining step, during which virtual volume data are determined based at least on finished optical article data representative of the volume of the finished optical article and over-thickness data representative of over-thickness requirements, the virtual volume data are determined so that the virtual volume defined by the virtual volume data includes the volume of the finished optical article volume of the finished optical article and the over-thickness, &#x2014;a lens blank determining step, during which a lens blank is determined based on the virtual volume data so as to include the virtual volume defined by the virtual volume data.

Method for determining a lens blank intended to be used to manufacture an optical lens

A method for manufacturing an ophthalmic lens () having at least one optical function, includes the step of additively manufacturing () a complementary optical element () by depositing a plurality of predetermined volume elements () of a material having a predetermined refraction index on a predetermined manufacturing substrate (), the complementary optical element being configured such as to be assembled with an initial optical system (), the manufacturing step including the step of determining a manufacturing setting () from properties relating to the deformation of the complementary optical element, which deformation is caused by transferring the latter onto the initial optical system, and the step of determining a setting including the step of determining the deformation properties () of the complementary optical element from geometric properties of the manufacturing substrate and the initial optical system and from properties of the optical function to be provided to the ophthalmic lens.

Method for manufacturing an ophthalmic lens

A method for controlling a manufacturing device used in an optical lens manufacturing process. The method including providing optical lens data, the optical lens data representing the nominal and effective values of at least one optical lens parameter of an optical lens manufactured according to a manufacturing process using a manufacturing device, providing manufacturing data identifying at least the manufacturing device used to manufacture the optical lens, determining the difference between the nominal and effective values of the at least one optical lens parameter of the optical lens, determining a recommended value of a manufacturing parameter of the manufacturing device identified by the manufacturing data, the recommended value of the manufacturing parameter being determined based on the difference between the nominal and effective values of the at least one optical lens parameter.

Method for controlling a manufacturing device used in an optical lens manufacturing process

A process for manufacturing an ophthalmic lens () having at least one optical function, includes: a step () of additively manufacturing the ophthalmic lens () by depositing a plurality of preset volume elements of at least one material having a preset refractive index in order to form a target geometric envelope; a step of determining an actual geometric envelope at least once during the implementation of the additive manufacturing step (); and a step of triggering a corrective action if there is in a zone a discrepancy larger than a preset threshold between the target geometric envelope and the actual geometric envelope.

Process and machine for manufacturing an ophthalmic lens

A process for manufacturing an ophthalmic lens having at least one optical function, includes the following steps: additively manufacturing () an intermediate optical element by depositing a plurality of preset volume elements of at least one material having a preset refractive index, the intermediate optical element including a target ophthalmic lens and a thickness allowance consisting of a portion of the plurality of volume elements; and subtractively manufacturing (), by machining, the target ophthalmic lens from the intermediate optical element, the machining being carried out in a preset sequence, of at least one step, the preset sequence making it possible to subtract the thickness allowance, the additive manufacturing step () including a step of determining a manufacturing setpoint for the intermediate optical element in which the thickness allowance is determined depending on the preset sequence defined in the subtractive manufacturing step ().

Process and system for manufacturing an ophthalmic lens

The invention relates to a method of machining a face () of an ophthalmic lens () with a main machining step in which the position of a machining tool () is synchronised with the angular position of the ophthalmic lens () which is rotated around an axis of rotation () that is transverse to the face (), in order to provide the face with a machined surface that is asymmetrical in relation to the axis of rotation () of the ophthalmic lens (); and a complementary machining step in which a recess () is machined around the axis of rotation () of the lens ().

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Charenton-le-Pont, France

Loic Quere