737 patents
Page 15 of 37
Utility
Method for Determining a Progressive Lens and Associated System
21 Apr 22
A method for determining a design of a progressive lens intended to be worn by a future wearer, the progressive lens comprising a front surface and a back surface, at least one of the front surface and the back surface comprising a progression profile on its general spherical shape, said at least one progression profile defining a meridian line extending from a distance-vision point to a near-vision point, said meridian line comprising a vertical portion passing through the distance-vision point and an inclined portion passing through the near-vision point, the vertical portion and the inclined portion forming an angle between them, the method including obtaining first data representative of a first measurement of a first postural instability of the future wearer when seeing a visual pattern moving along an mediolateral direction, and determining a reparation between the first progression profile and the second progression profile based on the first data.
Delphine TRANVOUEZ-BERNARDIN, Jocelyn FAUBERT, Guillaume GIRAUDET
Filed: 27 Nov 19
Utility
Method and System for Manufacturing an Optical Volume Element from a Curable Material Using an Additive Manufacturing Technology
21 Apr 22
A method for manufacturing an optical element (100) from a curable material (50) using an additive manufacturing technology comprising steps of: providing a first portion of curable material (50), forming a first part of the optical element by irradiating the surface (55) of the curable material with a first curing surface energy, the first curing surface energy being strictly lower than a first predetermined energy threshold and higher than a second predetermined threshold, and forming, after the irradiation of the first part with the first curing surface energy, at least a second part of the optical element, distinct from the first part of the optical element, by irradiating, with at least a second curing surface energy, the surface of the curable material, the second curing surface energy irradiating both the second part of the optical element (100) and at least a portion of the first part of the optical element, the sum of the first curing surface energy and the at least second curing surface energy being higher than or equal to the first predetermined energy threshold.
Maxime LECOMPERE, Pierre LEITE, Manuel THEODET
Filed: 21 Feb 20
Utility
Command/control unit and computer program for producing an ophthalmic lens comprising a step of laser marking in order to produce permanent etchings on one surface of said ophthalmic lens
19 Apr 22
A method for producing an ophthalmic lens includes a step of laser marking in order to produce permanent etchings on one surface of the lens, at least one predefined step subsequent to the marking step and implementing extreme thermal stress that is applied to the surface, and a step of determining an operating point (PF) of a laser marking machine (1) configured to implement the marking step from geometric characteristics (Di) of the etchings to be made, the determining step including the steps of determining (304) a value (CPM) representative of the deformation of the lens on at least one treatment area of the surface, from the stress and data relative to a predetermined material from which the lens is formed, and of deducing (308) the operating point from the value representative of deformation and from the geometric characteristics.
Frédéric Dubois, Sébastien Maurice
Filed: 5 Dec 19
Utility
Ophthalmic Lens for Improving Vision
14 Apr 22
This ophthalmic lens for improving vision has a light cut factor CutLED between 32% and 90%, for wavelengths ranging from 380 nm to 500 nm, defined by formula (I), where Σ is a discrete or continuous sum operator, λ is the wavelength in nm, lens T % is the spectral transmittance of the lens in % and LED emission is the spectral distribution of a white light emitting diode; a mean luminous transmittance in the visible range higher than or equal to 75%; and light transmitted through the ophthalmic lens has a colorimetric value b*, as defined in the colorimetric CIE L*a*b* with illuminant D65, lower than 25.
Coralie BARRAU, Elise POLETTO, Jean-Philippe DUMONT, Christelle MARCK, Céline ROBIN, Valérie JACQUEMIN, Elliot FRENCH
Filed: 26 Sep 19
Utility
a Method and System for Predicting an Eye Gazing Parameter and an Associated Method for Recommending Visual Equipment
14 Apr 22
This method for predicting at least one eye gazing parameter of a person wearing visual equipment includes steps of: measuring data of at least two individuals wearing visual equipment, such data including at least head motion parameters and eye gazing parameters of the individuals; measuring head motion parameters of the person in real-life conditions; comparing the head motion parameters of the person with the head motion parameters of the at least two individuals; and predicting the at least one eye gazing parameter of the person at least on the basis of the results of the comparing step and of the eye gazing parameters of the at least two individuals.
Konogan BARANTON, Aurélie LE CAIN, Sébastien FRICKER
Filed: 16 Jan 20
Utility
Characterizing an Optical Element
31 Mar 22
A method for characterizing optical elements of a lens element adapted for a person is presented, the lens element including: a holder including a refraction area having a refractive power based on a prescription for correcting an abnormal refraction of an eye of the person; and a plurality of optical elements configured so that at least one of slow down, retard or prevent a progress of the abnormal refraction of the eye of the person.
Matthieu GUILLOT, Cédric LEMAIRE, Eric GACOIN, Marion CORNET
Filed: 6 Oct 20
Utility
High Efficiency Polarizing Lens with Color Enhancement
31 Mar 22
A light filtering element, includes: at least one layer, a first layer of the at least one layer being stretched along a strain direction and including a first narrowband dye, the first narrowband dye including a first narrowband dye peak absorbance wavelength with a first narrowband dye bandwidth; and a first dichroic dye configured to absorb polarized light, the first dichroic dye including a first dichroic dye peak absorbance wavelength with a first dichroic dye bandwidth, molecules of the first dichroic dye being at least partially oriented along the strain direction.
Srinivasan BALASUBRAMANIAN, Elliot FRENCH, Aref JALLOULI
Filed: 15 Sep 21
Utility
Method for vapor deposition of optical substrate
29 Mar 22
Provided is a method of vacuum deposition to deposit at least two functional coatings to a substrate, including (a) evaporating a first film forming material from a first evaporation source disposed in a vacuum deposition chamber, (b) depositing the evaporated first film forming material on a substrate located above the first evaporation source to form at least a portion of an anti-reflective coating on the substrate, (c) evaporating a second film forming material from a second evaporating source disposed in the vacuum deposition chamber, and (d) depositing the evaporated second film forming materials on the substrate located above the second evaporation source to form a hydrophobic coating on the substrate.
Brian McCrady, Alain Mathieu, Cesar Maksoud, Todd Lane Jacobs
Filed: 11 Mar 15
Utility
Spectacle lens comprising an activable optical filter
29 Mar 22
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.
Jerome Ballet, Samuel Archambeau, Jean-Paul Cano, Frederic Arrouy, Loic Quere
Filed: 20 Feb 18
Utility
Wavelength tunable optical filter and method for switching and adjusting thereof
29 Mar 22
A wavelength tunable optical filter and a method for switching and adjusting the wavelength tunable optical filter.
Eva Oton, Estelle Netter
Filed: 3 Apr 17
Utility
Method for Obtaining Data Representative of the Outline of a Shoulder Delimiting a Step-back Portion In an Eyeglass
24 Mar 22
The method includes the steps of: providing spectacles including a template eyeglass having a mounting portion inserted in a groove of an arc and being to be replaced by a prescription eyeglass having a step-back portion with the same conformation as the mounting portion; providing a set of visible marks on the template eyeglass independently of the arc; having an outline editor providing a visualization of the template eyeglass provided with the visible marks; determining through observation of the spectacles the location—with respect to the visible marks—of points of the arc from which the template eyeglass projects; entering on the provided visualization the so determined locations of the points of the arc; and outputting from the editor the data representative of an edited outline based on the point locations so entered on the provided visualization, whereby the edited outline is the outline of the shoulder.
Hugues AMEURLAIN, Nicolas JAMET, Laurent ROUSSEL
Filed: 23 Dec 19
Utility
Measurement method for the determination of a value of a visual correction need for near vision of an individual
22 Mar 22
Disclosed is a measurement method for determining a value of a visual correction need for near vision of an individual in a natural posture for near vision.
Martha Hernandez-Castaneda, Konogan Baranton, John Carrier
Filed: 14 Sep 17
Utility
Birefringent liquid crystal composition comprising alkylsulfanylaryl isothiocyanato tolane compounds
22 Mar 22
The present invention relates to an optical article comprising a birefringent liquid crystal composition, said composition comprising more than 30% by weight based on the total weight of the composition of tolane compounds of formula R—S—Z1-A-Z2—NCS, in which R is a substituted or unsubstituted, linear or branched alkyl group, Z1 and Z2 are aryl groups, and A is an ethynyl group, an arylethynyl group or an ethynylarylethynyl group.
Przemyslaw Kula, Jakub Herman
Filed: 21 Dec 15
Utility
Lens Element
17 Mar 22
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: 24 Nov 21
Utility
a Method and Device for Predicting Evolution Over Time of a Vision-related Parameter
17 Mar 22
This method for predicting evolution over time of at least one vision-related parameter of at least one person includes: obtaining successive values for the person, respectively corresponding to repeated measurements over time of at least one parameter of a first predetermined type for the person; predicting by at least one processor the evolution over time of the vision-related parameter of the person from the obtained successive values for the person, by using a prediction model associated with a group of individuals; the predicting including associating at least part of the successive values for the person with the predicted evolution over time of the vision-related parameter of the person, the associating including jointly processing the successive values associated with the same parameter of the first predetermined type.
Björn DROBE, Aurélie LE CAIN, Yee Ling WONG
Filed: 4 Dec 19
Utility
Lens Element
17 Mar 22
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: 24 Nov 21
Utility
Lens Element
17 Mar 22
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: 24 Nov 21
Utility
Method of Generating Virtual Surface Data of a Progressive Addition Lens
10 Mar 22
A method includes acquiring prescription data including an addition value.
Cyril GUILLOUX, Gilles LE SAUX, Olivier ROUSSEL
Filed: 9 Dec 19
Utility
Optical Article Having a Reflective Coating with High Abrasion-resistance
3 Mar 22
Disclosed is an optical article including a substrate having at least one main face coated with a reflective coating including a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index layer having a refractive index of 1.55 or less, in which the thicknesses of the layers in the reflective coating have been optimized according to specific design rules in order to boost the abrasion resistance of the optical article.
William TROTTIER-LAPOINTE, Alexis THEODEN, Philippe ROMAND, Surin MAIDAM
Filed: 18 Dec 19
Utility
Method for determining an optical parameter of a lens
1 Mar 22
A method implemented by computer means for determining at least one optical parameter of a lens of eyewear adapted for a person, the method comprising: —an image reception step, during which at least a first image and a second image are received, the first image comprising a front view of the face of the person with at least one part of an eye of the person being directly visible, and the second image comprising a front view of the face of the person with said part of the eye of the person being visible through at least part of the lens, and —an optical parameter determination step, during which at least one optical parameter of the lens is determined based on a comparison between said part on the first and the second image.
Stephane Gueu, Julien Andoche, Daniel Tang
Filed: 20 Dec 18