Essilor International

Essilor International (compagnie Generale D'optique)

Centre National De La Recherche Scientifique

Essilor International (compagnie General D'optique)

Universitè De Montpellier

Centre National De La Recherche Scientifique-cnrs

Samuel Archambeau

Jean-Paul Cano

Claudine Biver

Jerome Ballet

David Escaich

Stephane Perrot

Aude Bouchier

Fabien Berit-Debat

Christian Bovet

Bernard Mark Heron

Anthony Saugey

Stuart Aiken

Christopher David Gabbutt

Coralie Barrau

Sandrine Duluard

Jérôme Ballet

Sylvie Vinsonneau

Willy Chaudat

Cyril Guilloux

Denis Rousseau

Loic Quere

Benoit Callier

Thierry Villette

Romain Fayolle

Marius Peloux

Karin Scherer

Loïc Quere

Stéphane Perrot

Denis Cohen Tannoudji

Frederic Arrouy

Paul Lefillastre

Pascal Etienne

Vincent Yquel

Thomas David Broadbent

Fabien Berit Debat

Cedric Gilbert

Sebastian Guaza

Benoît Callier

Henri Camon

Solon Mias

Jean Paul Cano

Corinne Galley

Jerôme Ballet

Francois Malbosc

Jéróme Ballet

Laëtitia Pont

Feng Shi

Frédéric Arrouy

Jean-Jacques Lussagnet

Daniel Luke Crossley

Sylvie Calas Etienne

Thomas D Broadbent

Daniel L Crossley

François Malbosc

Fabien Debat Berit

Georgina K Armitage

Cédric Gilbert

Laurent Bonnet

Sebastian Gauza

Davis Escaich

A method for manufacturing a set of semi-finished lenses and a lens from a semi-finished lens of the set and a set of semi-finished lenses each intended to be used in the manufacturing of a finished lens of determined target power, each semi-finished lens having a base curve chosen among a number N of base curves, wherein each base curve is associated to a respective range of powers of finished ophthalmic lenses to be manufactured, and each semi-finished lens of the set comprises a recorded holographic component, wherein the holographic components of the set exhibit a limited number of configurations, and each holographic component configuration is associated exclusively to one base curve among the N base curves.

Set of semi-finished lenses with holographic components

An ophthalmic lens and a method of manufacturing the ophthalmic lens, the ophthalmic lens including a base lens that includes at least a layer of low-birefringence material and at least one holographic component recorded on a surface of the layer of low-birefringence material, and an auxiliary lens assembled to the base lens.

Ophthalmic lens having a holographic mirror on a low-birefringence base lens

An optical article that includes an ophthalmic lens that includes a substrate, a first layer comprising liquid crystals being disposed on at least part of the substrate, and a first and a second electrode made of a conductive material, and a voltage source electrically connected to the first and second electrodes and configured to control an orientation of the liquid crystals depending on the voltage applied. The ophthalmic lens further includes a second layer made of photoconductive material placed between the electrodes, and the optical article further includes a light projector configured to project a light pattern on the second layer of the ophthalmic lens, the second layer being locally conductive when illuminated by the light pattern, the light pattern corresponding to a pattern of refractive index modification to be induced by the liquid crystals of the first layer.

Optical article

A method and system for image display with a head-mounted device, which use a seethrough tunable diffractive mirror, such as a see-through tunable holographic mirror or seethrough tunable LCD array mirror, which mirror is useful in providing augmented reality.

Methods and systems for augmented reality

A spectacle lens includes an activable optical filter having at least an electrochromic device and being configured to be actively switched between at least three configurations. In the first configuration, the activable optical filter is uniform. In the second configuration, the activable optical filter attenuates selectively light from a localized light source. In the third configuration, the activable optical filter is uniform. Furthermore, the chromaticity difference &#x394;Chrom between each of the configurations is smaller than or equal to 20.

Spectacle lens comprising an activable optical filter and optical equipment comprising such spectacle lens

Active optical filter adapted for a spectacle lens, the active optical filter being configured so as to filter light radiations over at least one predetermined range of wavelengths, wherein the full width at half maximum of the filtering function of the optical filter is smaller than or equal to 100 nm.

Active optical filter for spectacle lenses

A spectacle lens including an activable optical filter, the activable optical filter being configured to be actively switched between at least three configurations, wherein in the first configuration, the color perception of the spectacle wearer is unaltered, in the second configuration the activable optical filter provides a specific filtering function, in the third configuration vision of the spectacle wearer is protected against glare.

Spectacle lens comprising an activable optical filter

The invention relates to a variable transmittance device including at least one variable transmittance lens and a control circuit comprising at least one sensor suitable for measuring an illuminance (E), the control circuit being suitable for automatically controlling the value of the transmittance of the variable transmittance lens depending on the illuminance (E) measured by the sensor, wherein the control circuit defines a plurality of successive illuminance ranges (P) each illuminance range (P) being bounded by a minimum illuminance value (Emin) and a maximum illuminance value (Emax), and wherein the control circuit is suitable for controlling the transmittance of the lens to a plurality of setpoint transmittance values (Tv) respectively corresponding to said plurality of illuminance ranges (P).

Plateau-based control of the transmission of a variable transmission lens

An electrochromic device including a selective membrane separating two liquid media including at least one electrochromic compound and at least one compound able to be oxidized or reduced and showing low energy consumption.

Electrochromic device with selective membrane

A method for obtaining a material containing mesogenic compounds forming a liquid crystal mix with a stabilized blue phase. The method includes the steps of a) inducing the liquid crystal mix, contained in a chemical composition, to form the blue phase, then b) illuminating the chemical composition with a light beam of visible wavelength in order to trigger the polymerization of monomers contained in the chemical composition, to obtain the material comprising the liquid crystal mix in the blue phase stabilized by the polymerized monomers. The chemical composition contains a mesogenic system and a chemical photo-initiator system adapted to trigger the polymerization of the monomers when illuminated by the light beam of visible wavelength, in which the mesogenic system includes the mesogenic compounds forming the liquid crystal mix, a chiral dopant adapted to induce the blue phase, and a monomer mix comprising the monomers adapted to polymerize.

Method for obtaining a material comprising a liquid crystal mix with a stabilized blue phase and optical article comprising this material

A method and system for image display with a head-mounted device, which use a see-through tunable diffractive mirror, such as a see-through tunable holographic mirror or see-through tunable LCD array mirror, which mirror is useful in providing augmented reality.

A method for controlling an ophthalmic system including at least one optical element, at least one measuring sensor, at least one interface for communication with a communicating external electronic device, and at least one processor connected to the optical element and used to control a variation of a functionality relating to the optical element. The method includes: obtaining at least one measurement using the sensor, selecting at least one piece of information obtained by a communicating external electronic device, determining an instruction based on the measurement acquired by the sensor and the information obtained by the communicating external electronic device, and executing the instruction by the processor to control the variation of the functionality relating to the optical element.

Method for controlling an ophthalmic system on the basis of a measurement and information obtained by an external electronic device

The present invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic compounds comprising one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.

Electrochromic compounds and optical articles containing them

An active optical filter adapted for a spectacle lens, the active optical filter configured to filter light radiations over at least one predetermined range of wavelengths, wherein the full width at half maximum of the filtering function of the optical filter is smaller than or equal to 100 nm.

An ophthalmic spectacle lens and a plurality of electronic components arranged in a form of at least one strip in contact with and along the periphery of the ophthalmic lens. An ophthalmic apparatus includes at least one frame and at least one ophthalmic device.

Ophthalmic device comprising an ophthalmic spectacle lens and a plurality of electronic components

Growing community of inventors

Charenton-le-Pont, France

Samuel Archambeau