Essilor International

Essilor International (compagnie Generale D'optique)

Essilor International Charenton-le-pont

Romain Fayolle

Sylvain Chene

Jean-Paul Cano

Cyril Guilloux

Samuel Archambeau

David Escaich

Pascal Allione

Christian Bovet

Benoit Callier

Stephane Perrot

Vincent Yquel

Jerome Ballet

Jérôme Ballet

Stéphane Perrot

Delphine Tranvouez

Benoît Callier

Antony Saugey

Davis Escaich

Methods for adapting the optical function of an adaptive ophthalmic lenses system are provided. Said methods comprise an adaptive ophthalmic lenses system providing step during which an adaptive ophthalmic lenses system is provided. An acquisition step during which the scene in front of the wearer is acquired may be provided. A gazing zone determining step during which a gazing zone is determined may be included, the gazing zone being a zone of images of the scene acquired comprising the gazing direction of the wearer. A parameter determining step during which the value of at least one parameter of the images of the scene is determined may be provided. An adaptation step may be included during which the optical function of active ophthalmic lenses are adapted according to the value of the at least one parameter determined during the parameter determining step.

Method for adapting the optical function of an adaptive ophthalmic lenses system

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

The invention provides a method for determining a geometrical parameter of an eye of a subject, such as for determining the position of a center of rotation of the subject's eye, such as for the purpose of personalizing the optical design of corrective ophthalmic lenses, wherein at least two images of the eye are captured with an image capture device while the subject looks in two different gaze directions, and on each image, the pupil and/or the iris of the eye are identified so that a geometrical parameter may be determined for determining a position of a center of rotation of the eye without requiring use of a reference accessory.

Method for determining a geometrical parameter of an eye of a subject

Method for calibrating a head-mounted eye tracking device, the method comprising: all acquisition step (S), during which eye data relating to the position of the eye of the wearer are acquired by the eye tracking device while having the wearer of the head-mounted eye tracking device look in a direction of reference with regard to the spectacle lens mount, an association step (S) during which the eye data acquired during the acquisition step are associated with the gaze direction corresponding to the direction of reference, a recording step (S), during which the associated eye data and the gaze direction are recorded&#x2014;wherein the head-mounted mounted eye tracking device comprises a spectacle frame in which ophthalmic lenses are mounted and the gazing direction corresponding to the direction of reference is determined based on the dioptric function of the ophthalmic lenses.

Method for calibrating a head-mounted eye tracking device

The invention relates to a device for determining the position of a characterizing point of an eye of a wearer provided with a spectacle frame (), including: at least one image sensor apparatus (); and positioning element for positioning the image sensor device relative to the spectacle frame (), such that, when the spectacle frame is arranged in a useful position on the head of the wearer, the image sensor apparatus is capable of capturing an image of the eye of the wearer; and element for determining the position of a characterizing point of the eye from the at least one image of the eye of the wearer captured by the image sensor apparatus. The invention also relates to a method for determining the position of a characterizing point of an eye of a wearer, a device and a method for determining the direction of the gaze and a method for determining associated areas of wear of an ophthalmic lens.

Devices and methods for determining the position of a characterizing point of an eye and for tracking the direction of the gaze of a wearer of spectacles

A method of controlling a programmable lens device comprising a programmable lens and an optical function controller, the programmable lens having an optical function and extending between at least one eye of the wearer and the real world scene when the device is used by the wearer, and the optical function controller being arranged to control the optical function of the programmable lens, the method comprising: an optical function data receiving step during which optical function data relating to the optical function of the programmable lens is received by the optical function controller, an optical function modifying step during which the optical function of the programmable electronic lens device is modified by the optical function controller based on the optical function data.

Method of controlling a programmable lens device

A method of controlling a programmable lens device comprising a programmable lens and an optical function controller, the programmable lens having an optical function and extending between at least one eye of the wearer and the real world scene when the device is used by the wearer, and the optical function controller being arranged to control the optical function of the programmable lens, the method comprising: &#x2014;an optical function data receiving step during which optical function data relating to the optical function of the programmable lens is received by the optical function controller, &#x2014;an activity data receiving step during which activity data relating to the activity of the wearer are received by the optical function controller, &#x2014;an optical function modifying step during which the optical function of the programmable electronic lens device is modified by the optical function controller based on the optical function data and the activity data.

A curved multi-layer structure () is formed from individual films () that are initially flat. The films are firmly bonded to each other along respective facing surfaces. A heat treatment is applied to one or both of the films () of the structure so as to cause respective contractions or elongations that are different for the two films at standard use temperatures. A difference between said contractions or elongations causes the curvature of the multi-layer structure. The structure thus has a permanent curved shape, without contact between compression-forming instruments and a useful part of the multi-layer structure being necessary. The multi-layer structure can then be applied onto a curved substrate without causing any tears or ripples.

Growing community of inventors

Charenton-le-Pont, France

Romain Fayolle