Essilor International

Essilor International (compagnie Generale D'optique)

Nikon Corporation

Hydro-quebec

Satisloh Ag

Mathieu Feuillade

Karim Zaghib

Abdelbast Guerfi

Aref Jallouli

Haipeng Zheng

Ronald A Berzon

Robert Alan Valeri

Alexandre Gourraud

Jean-Marc Padiou

Loïc Quere

Olivier Roussel

Mamonjy Cadet

Pierre Fromentin

Jérôme Moine

Xavier Bultez

Muriel Godeau

Pauline Colas

Hélène Maury

Jean-François Labrecque

Maxime Lecompere

Pierre Leite

Francis Henky

Tipparat Lertwattanaseri

Guillaume Cantagrel

Gregory Hervieu

David Portet

Alain Goulet

Pascale Goutal

David Montoya

Camille Meridiano

Peggy Coue

Yee Ling Wong

Olivier Favrat

Anna Yeo

Thanisararat Saleesung

Elodie Wipf

Disclosed is a method implemented by computer for determining a batch of a number n>1 of three-dimensional products to be manufactured by an additive manufacturing technology, the method including: —a step of receiving at least one order for manufacturing a product by the additive manufacturing technology; —a step of determining a score associated with the product from a set of data included in the at least one order, the score being representative of at least one product's characteristic; —a step of assigning to the batch n products having a corresponding score; and—a step of providing an additive manufacturing machine with the set of data of each product assigned to the batch.

Method for determining the priority and the position of three-dimensional products in an additively manufacturing process

Disclosed is a method for the manufacturing of an optical element having a refractive index above 1.59 by additive manufacturing to the optical element obtained by such a method and to an ophthalmic lens including such an optical element.

Method for the manufacturing of an optical element, optical element thus obtained

Disclosed is a method of manufacturing an ophthalmic lens having at least one optical function, including the determination of a transmission spectrum in a wavelength range from 280 to 2000 nm, the determination of a matrix including at least two compounds absorbing light having a wavelength from 280 to 2000 nm, with regard to the determined transmission spectrum, and additively manufacturing the matrix.

Determining method for an ophthalmic lens with targeted transmission spectrum

An optical system comprising an optical lens •—the optical lens comprising a substrate () and a self-healing coating () extending along at least part of a surface of the substrate, the self-healing coating having a glass-transition temperature equal to or greater than 40° C. and equal to or smaller than 60° C., and •—the optical system comprising a heating component () adapted to heat the self-healing coating at a temperature above the glass-transition temperature of the self-healing coating.

Optical system and method for repairing an optical lens of an optical system

This invention relates to an ophthalmic lens comprising a multilayered interferential coating and to a manufacturing method thereof. The ophthalmic lens comprises: According to the invention, the multilayered interferential coating () comprises at least one graphene layer () which has a uniform thickness of between 0,1 nm to 1 nm.

Ophthalmic lens comprising a multilayered interferential coating and manufacturing method thereof

A method of determining at least one parameter of an ophthalmic lens () including a complementary optical element () obtained by additive manufacturing and configured to provide at least a part of the optical function of the ophthalmic lens, the determining method including a step of providing two characterizing surfaces simulating two opposite surfaces of a complementary optical element (), the distance between the two characterizing surfaces along a thickness axis (Z) defining the thickness of the complementary optical element; a step of optimizing the distance between the two characterizing surfaces () along the thickness axis (Z) so that the thickness of the complementary optical element reaches a thickness threshold while complying with the optical function of the ophthalmic lens (); and a step of determining at least one parameter of the ophthalmic lens () on the basis of the optimized distance.

Determining method for an ophthalmic lens with optimized thickness

A method of manufacturing an ophthalmic lens having at least one optical function includes: a step of additively manufacturing a complementary optical element by depositing a plurality of predetermined volume elements on a predetermined build support, the complementary optical element being configured to provide at least a part of the optical function of the ophthalmic lens, wherein the build support includes at least one added value or adhesive configured to provide to the ophthalmic lens at least one added function. An ophthalmic lens including a build support and a complementary optical element as well as an ophthalmic lens obtained by such a manufacturing method.

Method of additively manufacturing an ophthalmic lens with at least one added function

An eyewear frame having at least one frame component including a stimuli-responsive polymer is provided. The at least one frame component has a physical property which is reversibly changeable in response to a stimulus of non-thermal origin applied to the stimuli-responsive polymer. An eyewear including the eyewear frame, and a method of adjusting the eyewear frame are also provided.

Eyewear frame, an eyewear, and a method of adjusting an eyewear frame

A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system () having a first optical function and a first main refractive index; a step of providing a transition layer () intended to be disposed between the starting optical system () and a complementary optical element () having a second main refractive index, the transition layer () aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer () having a transition optical function; and a step of additively manufacturing the complementary optical element () on the transition layer (), the complementary optical element () having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.

Method for additively manufacturing an opthalmic lens and opthalmic lens

Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

Liquid polymerizable composition comprising mineral nanoparticles and its use to manufacture an optical article

The invention concerns a transparent thin liquid crystal alignment film () including liquid crystals () within a polymerised liquid crystal composition, the film () comprising a first main surface (), a second main surface () and a bulk () comprised between said opposed two main surfaces (), for which: &#x22c5; in the vicinity of the first main surface (), the liquid crystals () are aligned along a main first direction, &#x22c5; in the vicinity of the second main surface (), the liquid crystals () are aligned along a main second direction, different from the first direction, and in between, the bulk () comprises liquid crystals () maintained in an isotropic orientation. The invention concerns also a process of manufacturing such a liquid crystal alignment film () and a polarization-independent spatial phase modulator including such a liquid crystal alignment film ().

Transparent thin film, process for manufacturing a film, and spatial phase modulator

The present invention relates to an article comprising a substrate having a main surface coated with a mesoporous antistatic coating, said coating having a refractive index lower than or equal to 1.5, and a silica based matrix functionalized by ammonium groups, said matrix having a hydrophobic character. Under certain conditions, the mesoporous antistatic coating is a single-layer anti-reflection coating or is part of a multi-layer anti-reflection coating. This invention further relates to a method for manufacturing said article, and to the use of a mesoporous coating having a silica based matrix functionalized by ammonium groups, as an antistatic coating.

Method for manufacturing a substrate coated with mesoporous antistatic film, and use thereof in ophthalmic optics

The present invention relates to an optical article comprising a substrate provided with a coating comprising silanol groups on the surface thereof and, directly contacting this coating, an anti-fog coating precursor coating, said precursor coating having a static contact angle with water of more than 10&#xb0; and of less than 50&#xb0;, a thickness lower than or equal to 5 nm, and being obtained through the grafting of at least one organosilane compound having a polyoxyalkylene group comprising less than 80 carbon atoms and at least one silicon atom bearing at least one hydrolyzable group. The anti-fog coating precursor is converted into an actual anti-fog coating by applying on the surface thereof a film of a liquid solution comprising at least one surfactant. The anti-fog coating is immediately operational and provides long-lasting effects.

Optical article comprising a temporary anti-fogging coating with improved durability

The invention relates to an electrochromic optical lens and a method for the preparation thereof. The lens includes an electrode and a counter-electrode bearing an electrochromic material separated by a solid polymer electrolyte. The method consists of preparing the electrode and the counter-electrode and the assembly thereof by the surfaces thereof bearing the electrochromic material by interleaving an electrolyte membrane between said surfaces. The electrolyte membrane is interleaved in the form of a composition free of volatile liquid solvent, including a precursor of the polymer and a salt, which is liquid or which has a dynamic viscosity [mu] between 100 and 106 Pa&#xb7;s.

Growing community of inventors

Charenton le Pont, France

Mathieu Feuillade