Essilor International

Essilor International (compagnie Generale D'optique)

Stéphane Boutinon

Michel Nauche

Gildas Marin

Marius Peloux

Konogan Baranton

Guillaume Giraudet

Guilhem Escalier

Fabien Divo

Martha Hernandez-Castaneda

Bernard Brechemier

Philippe Pinault

Vincent Roptin

Hélène De Rossi

Estelle Netter

David Tang

Adèle Longo

Vincent Tejedor Del Rio

Didier Grand-Clement

Léonard Hartmann

Adéle Longo

Christophe Condat

Joel Batisse

Mai-Lan Boytard

Pierre Rolland

Joël Batisse

David C Tang

A method for determining at least one optical parameter of an eye of a person comprising displaying at least two sharp images on a retina of the eye of the person, the at least two images comprising a target and being carried by two light beams focused substantially in the plane of a pupil of the eye at at least two different positions, adapting a parameter of the target in each image based on feedback of the person relative to the change of the parameter of the target in the image, and determining the at least one optical parameter of the person's eye based on the adaption of the parameter of the target in each image.

Method for determining at least one parameter of an eye of a person

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

A system for determining a prescription for an eye of a person, the system being configured to communicate with a mobile device including at least one first light source adapted to illuminate the eye with first light having a first optical wavelength, at least one second light source adapted to illuminate the eye with second light having a second optical wavelength different from the first wavelength, and a processor that measures the photorefraction of the eye at the first wavelength based on at least one picture of the eye recorded when illuminating the eye with first light, measures the photorefraction of the eye at the second wavelength based on at least one picture of the eye recorded when illuminating the eye with second light, determines the prescription for the eye based on the measured photorefraction at the first wavelength and the measured photorefraction at the second wavelength.

Method and system for determining a prescription for an eye of a person

An optometry device for testing an individual's eye, includes a refraction test unit having an optical system for providing different vision correction powers close to the eye of the individual, and a display unit adapted to produce a visual test image for the individual's eye, the visual test image being visible through an exit aperture of the test unit of the optometry device. The display unit includes a screen adapted to display a test picture used in producing the visual test image and at least one optical element having an optical power. The optical element presents an active state in which it exhibits a non zero refraction power placed on an optical path of the light emitted by the screen and exiting the device through the exit aperture, and an inactive state in which it introduces no refractive power on the optical path.

Optometry device for testing an individual's eye and associated method

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

An optometry device for testing an individual's eye (E) comprises an imaging module () adapted to produce a first image at a variable distance for the individual's eye (E), a beam splitter () arranged to combine the first image and a second image for the individual's eye (E), and a screen () facing the beam splitter (). A mirror () is arranged in combination with the screen () to produce the second image to be visible by the individual's eye via the beam splitter ().

Optometry device

An optometry device for testing an individual's eye includes: a casing; an imaging module located in the casing and adapted to produce a light beam directed to the individual's eye; and a refraction module adapted to provide a variable optical correction to the individual's eye looking there through into the casing. The optometry device includes an illumination system adapted to produce a variable ambient light level inside the casing.

Optometry device and method of performing a test using such an optometry device

Disclosed is an optometry apparatus including: a base designed to receive corrective eyeglasses; at least one transmission element designed to cooperate with a member for regulating an optical correction characteristic of the eyeglasses; and at least one drive motor for driving the transmission element. Also disclosed is an assembly and to an associated system.

Optometry apparatus, assembly and system comprising such an apparatus

A preparation method includes: acquiring a frame of reference of ophthalmic lens defined at least by a first centering point and by a first orientation direction; acquiring a frame of reference of the rim of the eyeglass frame defined at least by a second centering point and a second orientation direction; acquiring a longitudinal profile representative of the shape of the rim and identified in the frame of reference of the rim; acquiring a curvature parameter or a curvature compensation parameter relating to the camber of the eyeglass frame; and putting the two frames of reference into coincidence, by positioning the two centering points relative to each other and by orienting the two orientation directions relative to each other as a function of the curvature parameter or the curvature compensation parameter so as to define the position and the orientation of the longitudinal profile in the frame of reference of the ophthalmic lens.

Method of preparing an ophthalmic lens for mounting in a cambered eyeglass frame

A preparation device () for preparing an ophthalmic lens to be machined, includes a support () suitable for holding the ophthalmic lens, blocking elements () including at least one blocking accessory () and a manipulator arm () for manipulating the blocking accessory, an acquisition device () suitable for acquiring an image of the ophthalmic lens, electronic and/or computer processor elements () suitable firstly for deducing an optical frame of reference of the ophthalmic lens, and secondly for controlling the position of the manipulator arm and/or of the support to apply the blocking accessory against the ophthalmic lens in a given blocking position. The blocking elements and/or the support include at least one marker element and the electronic and/or computer processor elements are adapted to identify the position of the marker element in an image acquired by the acquisition device, in which image there appears an image of the marker element.

Growing community of inventors

Charenton-le-Pont, France

Stéphane Boutinon