Essilor International

Essilor International (compagnie Generale D'optique)

Essilor International (compagnie General D'optique)

Gildas Marin

Martha Hernandez-Castaneda

Laurent Calixte

Martha Hernandez

Benjamin Rousseau

Konogan Baranton

Guilhem Escalier

Jean-Luc Perrin

Cyril Guilloux

Thierry Bonnin

Bruno Fermigier

Isabelle Poulain

Cécile Petignaud

Philippe Pinault

Stéphane Boutinon

Adèle Longo

Pedro Ourives

Martha Hernandez Castaneda

Carlos Dorronsoro

Adéle Longo

Gilles Le Saux

Guillaume Giraudet

Coralie Barrau

Fabien Divo

Aude Bouchier

Jean Sahler

Bernard Bourdoncle

Susana Marcos Celestino

Sarah Marie

Carlos Dorronsoro Díaz

Bruno Decreton

Nicolas Chateau

Melanie Heslouis

Estelle Netter

Aurélie Le Cain

Elise Poletto

Marie-Gaelle Froeliger

Camille Ehrismann

Mélanie Heslouis

Delphine Tranvouez

Paul Joret

Mirian Velasco

Camille Cathala

Richard Legras

David Rio

Pablo De Gracia Pacheco

Marc Le Renard

Tao Liu

Larry Thibos

Martha Hernandez Castanedas

Susana Marcos

Paul Vernerey

Martha Hernandez-castaneda

It is proposed a method for defining a design of an ophthalmic tinted lens provided with a turquoise blue ophthalmic filter. It is provided at least one optical parameter value that is prescribed with reference to a clear ophthalmic lens. At least one non-null optical power value is determined from said at least one prescribed optical parameter value. At least one reduction value is obtained. At least one reduced optical power value is calculated in function of said at least one non-null optical power value and said at least one reduction value. The ophthalmic tinted lens design is defined on the basis of said at least one reduced optical power value. Methods for defining a design of a first and a second ophthalmic tinted lens are also proposed. It is also proposed a corresponding ophthalmic tinted lens.

Methods for designing an ophthalmic tinted lens and ophthalmic tinted lenses, and corresponding ophthalmic tinted lens

A method for inducing a controlled variation of accommodation in an eye of a subject, using an optical system arranged in front of at least one eye of the subject and including displaying an environmental scene, displaying, in this environmental scene, a target visible by the subject through said optical system, said target being displayed in such a way that it is perceived by the subject as moving away from said subject or moving towards said subject within said environmental scene, having the subject observe said moving target.

Method for inducing a controlled variation of accommodation in an eye of a subject

The invention concerns a couple of test images, for a binocular refraction method, that comprises: —a first test image () to be provided to a first eye of a subject, comprising a central image (c) surrounded by a first peripheral image (p), this central image comprising at least one optotype (o); and—a second test image () to be provided to a second eye of the subject, comprising a central image (c) surrounded by a second peripheral image (p) substantially identical to the first peripheral image, this central image being deprived of optotypes, or comprising only optotypes (o) with a low contrast or sharpness level. The invention concerns also an associated binocular refraction method and refraction instrument, and an associated computer program.

Binocular refraction instrument, set of test images, binocular refraction method and computer program associated thereof

A method and associated instrument in which an optical system is switched from a first to a second refractive power states, to provide a first, and then a second refraction correction to an eye of a subject, the switching being carried on without interrupting a light beam coming from a target object and transmitted by the optical system to the eye of the subject. The switching is carried on in order to circumvent an intermediate refraction correction that is in between said first and second refraction corrections, or with a speed higher than a given limit.

Method and instrument for providing at least one eye of a subject with a first refraction correction and with a second refraction correction to be compared with each other

Disclosed is a hoist apparatus including: an electric motor, and a control box that can be electrically powered by a power supply, the control box including at least an electronic control circuit, an electrical wiring and an external casing forming a box of the control box, the external casing including at least sidewalls and a removable lid closing the box, the control box controlling the operations of the electric motor thanks to the electrical wiring connected to the electronic control circuit, to the power supply and to the electric motor, and a monitoring device, wherein the monitoring device is an insert of the box, the monitoring device being arranged within an enclosure, the enclosure being an added part of the box or being an exchanged part of the box and wherein the monitoring device is connected to the electrical wiring.

Method for determining a value of a global sensitivity parameter of a subject, methods using this value and system for determining said value

The method includes the steps of: a) illuminating the pupil of an eye of a subject by a light source of a portable electronic device, the light source being formed by a lighted area displayed on a screen of the portable electronic device; b) acquiring a picture of the pupil of the eye of the subject by an image-capture apparatus of the portable electronic device, the picture including an image of the reflection of the light source on the retina of the eye; and c) determining a refraction feature of the eye taking into account at least a geometrical feature, a positional feature or an intensity distribution of the image of the reflection. An associated portable electronic device is also described.

Method for determining a refraction feature of an eye of a subject, and associated portable electronic device

A method implemented by a computer means includes: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; and correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent the lens design is adapted to the user from the correlation.

Method for determining to which extent a lens design is adapted to a user

Disclosed is an apparatus for measuring subjective ocular refraction including a display device configured to display a least one optotype and a refractive optical system arranged between an eye of a viewer and the display device, the refractive optical system having an optical power that can be varied according to a determined minimum step. The display device further includes a unit for varying optical power designed to generate a variation in the spherical and/or cylindrical optical power, such that the display device and the refractive optical system form a first image of the optotype with a first total optical power and, respectively, a second image of the optotype with a second total optical power, the variation in optical power between the first total optical power and the second total optical power being less than the determined minimum step.

Apparatus and method for measuring subjective ocular refraction with high-resolution spherical and/or cylindrical optical power

Disclosed is a method for determining an eye parameter of a user of a display device, the eye parameter relating to a dioptric parameter of an ophthalmic lens to be provided to the user, the method including: a display device providing step, during which a binocular display device is provided to the user,&#x2014;an image display step, during which an image is displayed to the user when using the display device; a display parameter modifying step, during which at least one parameter of the display device is modified so as to modify the virtual display distance of the perceived image, wherein the display parameter modifying step is repeated until image subjective quality of the perceived image is perceived by the user as optimal; and an eye parameter determining step during which an eye parameter is determined based on the parameter of the display device.

Method of determining an eye parameter of a user of a display device

A method for determining a cylinder of an ophthalmic lens to be mounted on a spectacle frame is provided, the method including: providing a measuring device configured to run a Jackson Cross Cylinder procedure; determining components of a first vector of the cylinder in a two-dimensional vector cylinder representation; and determining components of a second vector of the cylinder in the two-dimensional vector cylinder representation, the components of the second vector of the cylinder being determined such that a Euclidian distance between the first vector and the second vector is independent of a value of the cylinder.

Method for determining the clyinder of an ophthalmic lens

Disclosed is a method for measuring the refraction of an individual by a refraction measuring appliance, including: an initial step of determining at least one initial value of a visuo-postural parameter of the individual; a step of processing the initial value in order to deduce at least one initial value of a regulating parameter of the refraction measuring appliance, the regulating parameter being associated with the visuo-postural parameter; a step of regulating the refraction measuring appliance according to the initial value of the regulating parameter; and a step of measuring the refraction of the individual by the measuring appliance regulated in this way. Also disclosed is a method for the optical design of an ophthalmic lens, and to a pair of glasses including such a lens.

Method and system for measuring refraction, method for the optical design of an ophthalmic lens, and pair of glasses comprising such an ophthalmic lens

A method for determining an ophthalmic lens having unwanted astigmatism, the ophthalmic lens being adapted to a wearer, the method including: a wearer prescription data providing during which wearer prescription data indicative of an ophthalmic prescription of the wearer are provided; a wearer focal data providing during which wearer focal data indicative of the wearer preferred image focal plan are provided; an ophthalmic lens determining during which the ophthalmic lens is determined based on the prescription of the wearer and the wearer focal data to reduce impact of unwanted astigmatism of the ophthalmic lens for the wearer.

Method for determining an ophthalmic lens having unwanted astigmatism

A method for determining a dioptric parameter includes: first, a test optical element having a dioptric function having a specific value of the dioptric parameter to be determined is provided and the person looks at a visual target using the test optical element; second, evaluation data and certitude data are collected, the evaluation data being indicative of the visual assessment expressed by the person looking at the visual target using the test optical element and certitude data being indicative of the degree of certainty of the person upon expressing the visual assessment. The first and second steps are repeated by varying the value of the dioptric parameter. For each value of the dioptric parameter tested a value a degree of certainty of the person is determined. The value of the dioptric parameter of the person is determined based on the values of degree of certainty of the person.

Method for determining a dioptric parameter of an ophthalmic lens to be provided to a person

Disclosed is an optometry measuring scale and method for determining a visual refraction value of an individual. According to the invention, the optometry measuring scale comprises a plurality of processed optotypes associated with a plurality of visual refraction corrections, wherein each processed optotype results from applying to a source optotype a determined image processing associated with a defined visual refraction correction, and an identification system for determining each defined visual refraction correction associated with each processed optotype.

Optometry measuring scale

A method for determining a pair of ophthalmic lenses adapted to a wearer, the method including: a wearer data providing, during which wearer data including at least an indication of the distortion dominant eye of the wearer and an indication of the prescription of the wearer are provided; an ophthalmic lenses determining, during which a pair of ophthalmic lenses adapted to the wearer is determined based at least on the wearer data.

Method for determining a pair of ophthalmic lenses

Growing community of inventors

Charenton-le-Pont, France

Gildas Marin