Essilor International

Essilor International (compagnie Generale D'optique)

Ocular Sciences, Inc.

Bruno Fermigier

Marius Peloux

Matthieu Guillot

Konogan Baranton

Björn Drobe

Benjamin Rousseau

Gildas Marin

Aude Bouchier

Nicolas Chateau

Matthieu Koscher

Claudine Biver

Guillaume Giraudet

Gilles Le Saux

Isabelle Poulain

Eric Gacoin

Jean Sahler

Alexandre Gourraud

Damien Paille

Martha Hernandez-Castaneda

Sylvain Chene

William Trottier-lapointe

Estelle Netter

Vincent Roptin

Delphine Tranvouez-Bernardin

Julien Hubert

Dominick Hubacz

Sylvie Maze

Richard Legras

Francois Guilhaumon

Cédric Gilbert

An eyeglass device including a variable transmission ophthalmic lens, a method for driving the transmission of such lens, and a non-transitory computer-readable storage medium for implementing such method. The eyeglass device comprises a light sensor configured for measuring an amount of light in the environment of a wearer and a controlling circuit configured for receiving at least light data from said light sensor and for driving the transmission of said ophthalmic lens on the basis of said light data. The controlling circuit is configured for driving the transmission of said ophthalmic lens on the basis further of movement data, said movement data being derived from an estimation of a movement of the wearer's head.

Eyeglass device and method for driving a variable transmission ophthalmic lens

An optical system intended to be worn in front of an eye of a wearer including an optical lens having at least a control point and an optical device that has a plurality of optical elements, the optical device being attached on a surface of the optical lens or encapsulated into the optical lens, wherein each optical element has simultaneously two different optical functions, and the optical device and the optical lens are configured so that the absolute value of the difference between a measured optical power at the control point of the optical system and the optical power corresponding to the prescription for said eye of the person is smaller than or equal to 0.12 diopter.

Optical system

The invention relates to a lens element () intended to be worn by a wearer, comprising at least one prescription portion () having a first optical function configured to provide a dioptric correction of an eye of the wearer when the lens element () is worn by said wearer based on a prescription of the wearer, and a plurality of lenslets (), each lenslet () of said plurality of lenslets being configured to provide at least one second optical function which differs from the first optical function, wherein each lenslet () has a shape, a size and a position such that at least one portion of said lens element () has a modulation transfer function (MTF) whose values are configured so that the modulation transfer function of said lens elementover a range of spatial frequencies comprised between 1 and 5 cycles per degree are lower or equal to 0.6.

Lens element and corresponding computer-implemented determining method

The disclosure relates to an optical article which comprises a hollow chamber and a separator separating the hollow chamber into a first subspace and a second subspace. The separator comprises an aperture. The optical article comprises a deformable membrane, attached, in the second subspace, along a closed line surrounding the aperture. The optical article is switchable, by deformation of the membrane, between at least three states (ST, ST, ST). Each state corresponds to a different optical function. The disclosure also comprises a corresponding method for switching said optical article between at least two of the three states.

Three-state optical article and method for controlling same

A method is provided for determining an ophthalmic lens configured to correct an abnormal refraction of an eye of a wearer and including at least three optical elements disposed on a surface of the ophthalmic lens to suppress or reduce a progression of the abnormal refraction of the eye, the method including providing prescription data configured to correct the abnormal refraction; providing at least one abnormal refraction parameter relating to the abnormal refraction; providing at least one sensitivity parameter representing a variation of sensitivity of the wearer as a function of at least one parameter of the optical elements; determining a value of the at least one parameter of the optical elements configured for the wearer based on the abnormal refraction parameter and the sensitivity parameter; and determining the ophthalmic lens based at least on the provided prescription data and the value of the parameter of the optical elements.

Method for determining an ophthalmic lens adapted for correcting an abnormal refraction of an eye of a wearer

The present invention concerns an optical system intended to be held by a frame and worn by a wearer, the optical system comprising a lens, the lens further comprising a metasurface formed by at least a set of nanostructures, at least the lens and the metasurface being designed to achieve an optical system transmission target optical function and an optical system reflective target optical function.

Method for determining an optical system with a metasurface and associated products

A lens element intended to be worn in front of an eye of a wearer comprising: —a prescription portion configured to provide to the wearer in standard wearing conditions a first optical function based on the prescription of the wearer for correcting an abnormal refraction of said eye of the wearer, and—a plurality of contiguous optical elements, wherein each optical element has a simultaneously bifocal optical function that provides simultaneously: —a second optical function in standard wearing conditions and—a third optical function of not focusing an image on the retina of the eye in said standard wearing conditions so as to slow down the progression of the abnormal refraction of the eye.

Lens element

An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25 D when the vision data passes from one range of vision distance and/or direction to another.

Optical device adapted to be worn by a wearer

A lens element intended to be worn in front of an eye of a person that includes a refraction area having a refractive power based on a prescription for the eye of the person, and a plurality of at least three non-contiguous optical elements, at least one optical element having a non-spherical optical function.

An optical device, to be used by a user driving a vehicle, the optical device including a controllable variable-tint lens and a controller, where the controller is configured to switch the optical device between at least two different modes, at least one mode being a driving mode and when the optical device is in the driving mode, a control parameter of the lens meets at least one driving criterion.

Optical device and means for detecting driving conditions

The invention relates to an optical device () adapted to be worn by a wearer comprising at least: &#x2014;a programmable lens () having an adjustable optical function and extending between at least one eye of the wearer and the real world scene when the optical device is worn by the wearer, &#x2014;an optical function controller () comprising &#x2014;a memory () storing at least computer executable instructions; and &#x2014;a processor () for executing the stored computer executable instructions so as to control the optical function of the programmable lens (), wherein the computer executable instructions comprise instructions for adjusting the optical function of the programmable lens () over a period of time determined so that the wearer does not perceive the adjustment of the optical function.

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

Disclosed are assessment devices and methods to assess eyesight. In one embodiment, an eyesight assessment device includes a medium having one or more imaging functionalities and operable to project images for display based on the one or more imaging functionalities. The device also includes an optical source operable to project light and being positioned at one or more positions relative to the medium, such that at least one of images are projected from the medium based on the position of the optical source relative to the medium and the one or more imaging functionalities of the medium, where each image corresponds to an object provided for display at a virtual distance relative to a user of the eyesight assessment device, and where each image includes one or more of user assessable display characteristics that are indicative of a visual condition of the user.

Eye assessment devices and methods to assess eyesight

A lens () includes a plurality of optical surfaces (S, S) each of which is made up of an alternation of active zones (ZA, ZA) and separation zones (ZS, ZS). The active zones of one of the surfaces are situated beside the separation zones of the other surface. The shape of one at least of the optical surfaces is then adapted into the separation zones in order to augment the acute angles that are situated at the convergence of active zones and separation zones. The lens can thus be made with improved accuracy with respect to a target optical function.

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Charenton-le-Pont, France

Bruno Fermigier