314 patents
Page 10 of 16
Utility
Method of trimming optical lenses
30 Mar 21
Vincent Anatole, Cedric Sileo
Filed: 31 Jul 19
Utility
Optical article coated with an antireflection coating comprising a sub-layer partially formed under ion assistance and its manufacturing process
30 Mar 21
The invention relates to an optical article provided with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating comprising, starting from the substrate: a sub-layer comprising two adjacent layers formed from the same material, the sum of the thicknesses of the two adjacent layers being greater than or equal to 75 nm; and a multilayered antireflection stack comprising at least one high refractive index layer and at least one low refractive index layer, the deposition of the first of said two adjacent layers of the sub-layer having been carried out without ion assistance and the deposition of the second of said two adjacent layers of the sub-layer having been carried out under ion assistance.
Luc Nouvelot, Johann Rotte, Karin Scherer, Daniel Vallet
Filed: 8 Apr 16
Utility
Ophthalmic lens comprising a reflective anti-abrasion multilayer coating and process for manufacturing said lens
30 Mar 21
Francis Henky, Maud Fraboulet
Filed: 18 Aug 17
Utility
Lens element
30 Mar 21
A lens element worn in front of an eye of a person 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 optical elements, wherein the optical elements are configured so that along at least one section of the lens the mean sphere of optical elements increases from a point of the section towards the peripheral part of the section.
Matthieu Guillot, Björn Drobe
Filed: 22 Dec 20
Utility
Method of monitoring the behavior of a cohort group of members
30 Mar 21
A method of monitoring the behavior of a cohort group of members, including: a cohort group behavior monitoring step during which the behavior of the members of the cohort group of members is monitored so as to provide behavior data; and a vision information generating step during which vision information relating to the vision of the members of the cohort group is generated based on the monitoring of the behavior data over time.
Nathalie Bar, Cecile Doussinault, Clotilde Haro
Filed: 21 Apr 17
Utility
Lens element
16 Mar 21
A lens element worn in front of an eye of a person includes a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of the eye of the person and a second refractive power different from the first refractive power and a plurality of at least three optical elements, at least one optical element having an optical function of not focusing an image on the retina of the eye so as to slow down the progression of the abnormal refraction of the eye.
Matthieu Guillot, Björn Drobe
Filed: 28 Dec 20
Utility
Method for determining a dioptric parameter of an ophthalmic lens to be provided to a person
16 Mar 21
A method for determining a dioptric parameter includes: first, a test optical element having a dioptric function having a specific value of the dioptric parameter to be determined is provided and the person looks at a visual target using the test optical element; second, evaluation data and certitude data are collected, the evaluation data being indicative of the visual assessment expressed by the person looking at the visual target using the test optical element and certitude data being indicative of the degree of certainty of the person upon expressing the visual assessment.
Gildas Marin, Jean-Luc Perrin, Martha Hernandez Castaneda
Filed: 18 Jul 17
Utility
Method for determining an optical system of a progressive lens
9 Mar 21
A method for determining an optical system of a personalized progressive lens for a given wearer including: a) providing a mean direction of gaze determined for the wearer in a reference frame tied to the head of the wearer; b) determining a target value for at least one optical design parameter as a function of the mean direction of gaze determined in a); c) calculating the optical system of the progressive lens by an optical optimization procedure on the basis of target values, wherein the target value of each optical design parameter as a function of the mean direction of gaze determined in b) is a target value.
Benjamin Rousseau, Guilhem Escalier, Isabelle Poulain, Juliette Wierzbicki, Laurent Calixte, Nacer Lakhchaf, Sarah Marie, Thierry Bonnin, Valerie Jolivet
Filed: 11 Oct 16
Utility
Optical system for treating chronobiological disorders and/or myopia
9 Mar 21
An optical system having a spectral transmission profile having an average transmittance Ta between 380 nm and 780 nm and an average red light transmittance Tr between a first limit L1 and a second limit L2, with Tr<2*Ta/3 and L1=600 nm and L2=780 nm, and the optical system being configured to allow selectively retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 530 nm.
Coralie Barrau, Denis Cohen Tannoudji, Thierry Villette
Filed: 10 Apr 17
Utility
Liquid polymerizable composition comprising mineral nanoparticles and its use to manufacture an optical article
2 Mar 21
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.
Mathieu Feuillade, Guillaume Cantagrel
Filed: 26 Jun 13
Utility
Method for optimizing a set of optical lens blanks
23 Feb 21
Method implemented by computer means for optimizing a set of optical lens blanks to be used to manufacture a set of optical lenses, each optical lens comprising a first optical surface, a second optical surface, the first and second optical surfaces being connected by a external periphery surface, the method comprising: a data providing step during which a set of data for every optical lens of the set of optical lenses is provided, the data comprising at least contour data representative of an external periphery surface of the optical lens, a first dataset representative of the first optical surface of the optical lens and a second dataset representative of the second optical surface of the optical lens; a supply cost function providing step during which a supply cost function is provided, the supply cost function being a function of the number of different optical lens blank comprised in the set of optical lens blanks, a lens blank cost function providing step during which a lens blank cost function is provided, the lens blank cost function being a function of the price of the optical lens blanks comprised in the set of optical lens blanks, a material cost function providing step during which a material cost function is provided, the material cost function being a function of the quantity of material to be removed from an optical lens blank so as to provide an optical lens adapted to the provided data, a lens blank optimization step during which the number and the contours of the different lens blanks comprised in the set of lens blanks to be used to manufacture the set of optical lenses adapted to the provided data and that minimizes a global cost function is determined, the global cost function being a weighted sum of the supply cost function, the lens blank cost function and the material cost function with the weight of the cost functions different from zero.
Thierry Baudart, Florence Morel
Filed: 20 Jan 15
Utility
Machine and method for an automated filling of a mold assembly for molding an ophthalmic lens
23 Feb 21
The present disclosure relates to a machine for an automated filling of a mold assembly for molding an ophthalmic lens, comprising: filling means to fill the mold assembly with a molding material through a filling aperture provided in the mold assembly, acquiring means to acquire an input value linked to the internal volume of the mold assembly, and control means for controlling the flow rate of molding material injected by the filling means in the mold assembly according to a flow rate profile deduced as a function of said input value.
Amparo Acda, Ratchapoom Maruthanont, Chatree Homwongs
Filed: 23 Dec 14
Utility
Method for monitoring an optical lens manufacturing process
23 Feb 21
A method for monitoring an optical lens manufacturing process at a first lens manufacturing side, the method including: a manufacturing data collecting, during which sets of manufacturing data indicative of at least a manufacturing process parameter and/or a manufacturing device parameters and/or an operator parameter and/or an environment parameter at the first lens manufacturing side are collected; a manufacturing information generating, during which at least one manufacturing information indicative of at least a manufacturing process parameter and/or a manufacturing device parameters and/or an operator parameter and/or an environment parameter at a second lens manufacturing side is generated based on the collected manufacturing data.
Ronald Gauthier, Stephane Gueu, Benoit Cazal, Isabelle Simon
Filed: 27 Jan 17
Utility
Method for obtaining a material comprising a liquid crystal mix with a stabilized blue phase and optical article comprising this material
16 Feb 21
A method for obtaining a material containing mesogenic compounds forming a liquid crystal mix with a stabilized blue phase.
Samuel Archambeau, Jean-Paul Cano, Sebastian Guaza
Filed: 6 Jul 16
Utility
Frame recognition system and method
16 Feb 21
The disclosed embodiments provide an improved method for enabling consumers to identify and purchase a desired frame that is captured in an image.
Jean Sahler, Adrien Boularot, Francois-Dumas Lattaque, Vivien Pouget
Filed: 6 May 15
Utility
Method for updating an index of a person
2 Feb 21
A method for updating an index of a person, the method includes: an index providing during which an index is defined as a function of at least one parameter related to the person is provided; a parameter monitoring during which the at least one parameter of the person is monitored over time; an index update during which the index of the person is updated based on the evolution over time of the at least one parameter of the person.
Marie Lore, Marion Swital
Filed: 1 Apr 16
Utility
Electronic frame for optical device and optical device comprising such a frame
26 Jan 21
An electronic frame for an optical device, the frame including a front frame element able to partially house at least one lens and including at least one electronic component, the front element extending, on either side of said at least one lens, over a retained length of said at least one lens.
Eric Patin
Filed: 8 Sep 16
Utility
Method for providing a head mounted optical system
12 Jan 21
Method for providing a head mounted optical system, the method comprising: an optical system providing step (S1), during which an optical system with an active function is provided and, an encapsulating step (S8), during which the optical system is at least partly encapsulated in a transparent capsule by stacking in close contact the optical system with at least one substrate of the transparent capsule and made integral with an adhesive.
Benoit Callier, Loïc Quere, Marc Reignault, Sira Uhalte Nogues, Mathieu Meynen, Denis Cohen Tannoudji
Filed: 2 May 14
Utility
Device for testing the visual behavior of a person, and method for determining at least one optical design parameter of an ophthalmic lens using such a device
4 Jan 21
A device for testing visual behavior of a person, including: an active display configured to display at least one visually predominant target in a plurality of positions that are variable over time and that are aligned along at least one line or column, and a unit for controlling the display.
Guilhem Escalier, Isabelle Poulain, Benjamin Rousseau
Filed: 13 Oct 16
Utility
Optical article comprising a substrate with an antireflective coating
28 Dec 20
An optical article including a substrate with two main surfaces, at least one of which is covered by a polymer coating having an outer surface, said coating including a first superficial layer beneath the outer surface having a first refractive index n1 and a second layer beneath the first superficial layer having a second refractive index n2, with n2<n1 and having the lowest refractive index of said polymer coating, and said coating exhibiting antireflective properties due to the difference between refractive indexes n1 and n2, said refractive index difference within the coating resulting from a plasma, corona, and/or an ion beam treatment of an initial polymer coating, through the outer surface.
William Trottier-Lapointe, Oleg Zabeida, Ludvik Martinu, Jolanta Klemberg-Sapieha, Karin Scherer
Filed: 10 May 17