Essilor International

Essilor International (compagnie Generale D'optique)

Other

Essilor International (compagnie Generale D' O{circumflex Over (p)}tique)

Pascal Allione

Jean-Pierre Chauveau

Loic Quere

Cedric Begon

Thierry Bonnin

Gilles Le Saux

Jean Sahler

Alexandre Gourraud

Cyril Guilloux

Sylvain Chene

Loïc Quere

Cédric Begon

Sébastien Maurice

Stéphane Gueu

Alexandre Gouraud

Daniel Steigelmann

Frédéric Dubois

Laurent Calixte

Isabelle Poulain

Guilhem Escalier

Christian Joncour

David Freson

Fabien Muradore

Bruno Amir

Romain Fayolle

Stephane Gueu

Cécile Pietri

Nicolas Lavillonniere

Céline Benoit

Christophe Jeannin

Agnes Ladous

Clotilde Haro

Denis Mazuet

Daniel Steigelman

Delphine Tranvouez

Bruno Fauquier

Francoise Ahsbahs

Björn Drobe

Jordan Brouns

Agnès Ladous

Françoise Ahsbahs

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step of providing a starting optical system of the lens, having a basic optical function and the step of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

Method for manufacturing at least one ophthalmic lens

Disclosed is a method for detecting a probable error in a set of data relative to a wearer and/or to a frame chosen by the wearer, at least one of these data being used for ordering an ophthalmic lens to be fitted into the frame for the wearer, the set of data including at least a value of a first parameter and a value of a second parameter different from the first parameter, the first and second parameters being relative to the wearer and/or a frame chosen by the wearer, the method including: a) determining a level of consistency of the values of the first and second parameter with each other, based on a predetermined statistical consistency rule linking the first and second parameters; and b) emitting, based on this level of consistency, an alert signal in order to report a probable error.

Method for detecting a probable error in a set of data relative to a wearer and/or a frame chosen by the wearer

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step () of providing a starting optical system of the lens, having a basic optical function and the step () of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

The present disclosure relates to a method for expanding an image database for evaluation of eyewear compatibility. In particular, the present disclosure relates to a method, comprising receiving a user image, receiving a frame image, processing the received frame image by setting, as transparent, pixels of the received frame image except for an anterior face of the frame, defining, within the processed frame image, a left boundary and a right boundary of the anterior face of the frame, the left boundary and the right boundary corresponding to the left eye and the right eye, respectively, receiving a filter image, processing the received filter image by setting, as transparent, pixels in the received filter image outside the frame based on the left boundary and the right boundary, merging the processed frame image and the processed filter image, and overlaying the merged image onto the received user image.

Apparatus, method, and computer-readable storage medium for expanding an image database for evaluation of eyewear compatibility

Disclosed is a method for determining a parameter of an optical equipment including an optical lens including permanent markings and being mounted in a spectacle frame, including: positioning the optical equipment is before a pattern in a first position; positioning a portable electronic device including an image acquisition module in a second position so as to acquire an image showing together the pattern seen through at least part of the optical lenses of the optical equipment in the first position and at least part of the spectacle frame of the optical equipment in the first position; detecting the permanent marking on the optical lens using the image acquired by the image acquisition module of the portable electronic device in the second position; and determining at least one parameter of the optical equipment based on the position of the permanent marking.

Method for determining a parameter of an optical equipment

Disclosed is a method for determining an updated visual correction need for designing a new vision correcting device of an individual already having a previous vision correcting device previously designed to correct his/her vision, wherein, in a first step, a previous level of correction of the previous vision correcting device is acquired, in a second step, a current vision acuity parameter of the individual wearing the previous vision correcting device is assessed, and, in a third step, the updated visual correction need is determined based on the previous level of correction of the previous vision correcting device acquired in the first step and on the current vision acuity parameter assessed in the second step. A complementary visual correction need can also be determined.

Method for determining an updated visual correction need for designing a new vision correcting device

A method is implemented by a computer for modifying a non-dioptric parameter of an optical system including a first and a second surface. The method includes a modifying step during which the first surface and second surface are modified so as to obtain a modified optical system such that the dioptric function of the modified optical system is substantially the same as the dioptric function of the optical system.

Method for modifying a non-dioptric parameter of an optical system

Disclosed are eyeglasses adapted to a wearer, including two half-frames interconnected by a bridge, each half-frame including at least a branch and an ophthalmic lens. The bridge of the eyeglasses is made of a separated element attached to each of the half-frames, the bridge having at least one geometrical feature determined by taking into account a morphologico-geometric parameter of the wearer. Also disclosed is a kit and a method for manufacturing the eyeglasses and a method for ordering the eyeglasses.

Eyeglasses adapted to a wearer, eyeglasses kit for manufacturing said eyeglasses, and methods associated

Method for optimizing an optical lens equipment for a wearer Method for optimizing an optical lens equipment for a wearer, the method comprising:&#x2014;an eye tracking device providing step, during which a spectacle frame mounted eye tracking device is provided to the wearer, &#x2014;a wearer parameter monitoring step, during which at least one parameter relating to the eyes of the wearer is monitored using the eye tracking device and&#x2014;an optimization step during which the optical lens equipment is optimized based at least partly on the base of the monitoring of the at least one parameter during the wearer parameter monitoring step.

Method for optimizing an optical lens equipment for a wearer

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

Method for determining the feasibility of an ophthalmic lens by an ophthalmic lens manufacturing process comprising: an ophthalmic lens data providing step, a set of surface parameters providing step, an optical parameters providing step during which a set of n optical parameters (P, P, . . . , P) is provided, n being an integer greater than or equal to 1, each optical parameter Pbeing provided with a tolerance value &#x3b5;, &#x2014;a feasibility check determining step, during which the feasibility of the ophthalmic lens by the ophthalmic lens manufacturing process is determined by determining if for i from 1 to n: the value of the derivative of Pwith respect to the jth surface parameter &#x3b1;on the nominal surface and &#x394;&#x3b1;the value of the jth surface parameter and Aa combination of terms of order greater or equal to 2 for each P.

Method for determining the feasibility of 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

Method for determining the values of a set of n optical parameters (P, P, . . . , P) of an ophthalmic lens, n being an integer greater than or equal to 1, the method comprising: an nominal ophthalmic lens data providing step, an ophthalmic lens providing step, an optical surface measuring step, a surface errors determining step during which a set of m surface error parameters (&#x3b1;, &#x3b1;, . . . , &#x3b1;) is determined, m being an integer greater than or equal to 1, an optical parameter determining step during which each optical parameter of the set of optical parameters is determined by: with Pthe value of the ith optical parameter of the manufactured optical lens, Pthe value of the ith optical parameter of the nominal optical lens, the value of the derivative of Pwith respect to the jth surface error parameter &#x3b1;on the nominal surface and &#x394;&#x3b1;the value of the jth surface error parameter, and Aa combination of terms of order greater or equal to 2 for each P.

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Charenton-le-Pont, France

Pascal Allione