A method for simulating an ophthalmic lens on an eye of a subject viewing a virtual scene using a light field display including a light field window. The method includes calculating a virtual ray between a point of the virtual scene and a point of an eye pupil plane, the virtual ray passing through a virtual lens and being defined on the basis of a model providing a deviation angle of the virtual ray through the virtual lens, repeating the calculating for a plurality of virtual rays passing through the virtual lens and joining couples of one point of the virtual scene and another point of the eye pupil plane, determining a light field representing a modified virtual scene, and generating the light field representing the modified virtual scene on the light field window towards the eye of the subject.
(IC2)(IC2) in the UV region ranges from 280 to 380 nm that is lower than 5% for an angle of incidence of 35°, characterized in that - IC1 comprises a front main face having a mean reflection factor Ruv350-380(IC1)(IC1) in the UV region ranges from 350 to 380 nm for an angle of incidence within the range of from 0° to 15°, and preferably of 0°, is higher than or equal to 75% and the optical article has: - a mean transmission factor in the region ranging from 350 to 380 nm, defined as Tuv350-380(OA)(OA) at an angle of incidence of 0° that is lower than or equal to 2%, - a transmission factor at 380 nm, defined as T380(OA)(OA), at an angle of incidence of 0° that is lower than or equal to 8%.
A method for providing a lens element comprising a plurality of encapsulated diffractive microstructures, the method comprising: (S2) obtaining first lens member data relating to a shape and refractive index of a first lens member comprising a plurality of diffractive microstructures; (S4) obtaining second lens member data relating to a shape and refractive index of a second lens member having a surface complementary to the surface of the first lens member comprising the plurality of diffractive microstructures; (S6) generating a lens element model based on the first and second lens member data; (S3) obtaining energy balance data relating to at least two maximum levels of MTF in at least two distinct planes (z1, Z2); (S10) optimizing the lens element model based on the energy balance data; and (S 12) providing the lens element by assembling at least the first and second lens members based on the optimized lens element model.
A mold for manufacturing a thermoset optical article having a high refractive index, a method for manufacturing the mold, and a method for manufacturing the article. The mold (1) is configured for manufacturing a thermoset optical article capable of being a poly thiourethane-based lens substrate having a refractive index of from 1.54 to 1.74, by casting a thermosetting material (6) into a molding cavity (5) of the mold, the mold comprising a mineral first mold part (2) having a mineral first inner surface (2a) modified by an organosilane mold-release agent. The modified first inner surface (4) comprises a product of a dehydration-condensation reaction of a hydrolysate of an aqueous alcohol solution of the organosilane mold-release agent applied to the mineral first inner surface (2a) and cured thereon, and the modified first inner surface (4) is devoid of a coating layer of particles and is configured to be directly in contact with the cast thermosetting material.
Method, for example implemented by computer means, for determining a local spatial contrast obtained with an optical lens to be placed in front of at least a portion of an eye, wherein the method comprises: - obtaining an eye model representative of the eye, - obtaining an optical lens model representative of the optical lens to be placed in front of at least a portion of the eye, - determining a point spread function based on the system of the eye model associated with the optical lens model, - convolving a plurality of images with the determined point spread functions so as to obtain a blurred version of the image, - determining the local spatial contrast in the blurred version of the image.
The present disclosure relates to a method for the enzymatic degradation of poly(allyl diglycol carbonate) such as CR-39® polymer, consisting in contacting at least one enzyme of the invention with poly(allyl diglycol carbonate) such as CR-39® polymer in a suitable form, for a sufficient time and in non-toxic and environmentally friendly reaction conditions. The method can also be used to recover the basic monomer and/or other compounds derived from the enzymatic degradation process, which can be further used to re-obtain the polymer or as intermediates in the synthesis of other chemicals. The present disclosure also concerns the use of a kit for the enzymatic degradation of poly(allyl diglycol carbonate) such as CR-39® polymer.
The present disclosure relates to a method for the enzymatic degradation of polythiourethanes containing the thiourethane bond of formula –S-C(=O)-N(H)- in every repeating unit of the polymeric chain, consisting in contacting at least one enzyme of the invention with a polythiourethane in a suitable form, for a sufficient time and in non-toxic and environmentally friendly reaction conditions. The method can also be used to recover the basic monomer and/or other compounds derived from the enzymatic degradation process, which can be further used to re-obtain the polymer or as intermediates in the synthesis of other chemicals. The present disclosure also covers a kit for the enzymatic degradation of polythiourethanes.
A method for manufacturing an ophthalmic device, comprising a polishing step to polish a surface comprising at least one unpolished zone, the at least one unpolished zone is a zone intended not to be polished. The polishing step comprises covering during which a protective cover is provided on the surface so as to cover the at least one unpolished zone; polishing at least a part of the surface and removing the protective cover.
A retinoscopic aid device for use with a portable streak retinoscope and with an automated phoropter for testing an individual's eye. The retinoscopic aid device includes a base plate configured to be detachably fastened to the automated phoropter, an optical display unit configured to display an orientable straight line mark, the optical display unit being supported by the base plate, and a control unit of the optical display unit which is configured to orient the straight line mark of the optical display unit according to a control command of a user allowing the user to orient the straight line mark according the streak orientation of the portable streak retinoscope when looking through the portable retinoscope.
A61B 3/103 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour la détermination de la réfraction, p. ex. réfractomètres, skiascopes
The disclosure provides post-production methods for functionalization of optical quality films produced by top tier manufactures. The methods disclosed herein allow for the incorporation of different additives into existing films.
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
B32B 37/12 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par l'usage d'adhésifs
The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one main face of which being successively coated with a first high refractive index sheet which does not comprise any Ta2O5 layer, a second low refractive index sheet a third high refractive index sheet, a monolayer sub-layer having a thickness higher than or equal to 100 nm, and a multilayer interferential coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer. A mean reflection factor selected from Ruv for UV light, Rv for visible light and RsNIR for near infrared light is higher than or equal to 10-15% on at least one main face.
Lens element, for example a myopia control lens element, adapted for a wearer, said lens element providing a first optical function having a power based on the prescription of the wearer, and comprising a plurality of optical elements, for example at least twenty optical elements, each optical element of the plurality of optical elements providing one or more optical functions, at least one of which is different from the first optical function; wherein over at least a 4 mm diameter pupil whose center is at 10 mm from a reference point, for example the optical center, of the lens element the normalized integral of the modulation transfer function over the range of spatial frequencies comprised from 0 to 5 cycles per degree and over said pupil is smaller than or equal to 0.66, for example smaller than or equal to 0.60.
13.
AN OPHTHALMIC LENS AND A METHOD FOR FORMING AN OPHTHALMIC LENS
The present disclosure relates to ophthalmic lenses for correction of myopia. In particular, the present disclosure relates to an ophthalmic lens, comprising a first layer having microstructures on a first surface of the first layer, the microstructures on the first surface of the first layer being formed in a pattern, a material of the first layer being a thermoplastic material; and a second layer formed on the first surface of the first layer, wherein a glass transition temperature of the first layer is higher than a glass transition temperature of the second layer.
Myopia control lens element Lens element, for example a myopia control lens element, adapted for a wearer, said lens element providing a first optical function having a power based on the prescription of the wearer, and comprising a plurality of optical elements, for example at least twenty optical elements, each optical element of the plurality of optical elements providing one or more optical functions, at least one of which is different from the first optical function; wherein over at least a 6 mm diameter pupil whose center is at 7.5 mm from a reference point, for example the optical center, of the lens element the standard deviation of the optical power distribution over said pupil is greater than or equal to 4 diopters, for example greater than or equal to 4.5 diopters, for example greater than or equal to 7 diopters.
A lens element intended to be worn in front of an eye of a person comprising: - a refraction area having a refractive power based on a prescription for said eye of the person; and - a plurality of refractive optical elements having an optical function different from the optical function of the refraction area, wherein over an annular zone centered on a reference point, for example the optical center, of the lens element and having an inner diameter of 8 mm and an outer diameter of 17 mm, the ratio of the surface of the annular zone having an additional optical power greater than or equal to 7.5 diopters in absolute value and relative to the power at the reference point, for example optical center, of the lens element over the total surface of the annular zone is greater than or equal to 0.02, for example greater than or equal to 0.05, for example greater than or equal to 0.09 and smaller than or equal to 0.5, for example smaller than or equal to 0.3.
16.
SYSTEM AND METHOD FOR DETERMINING A MYOPIA CONTROL SOLUTION
A system for determining a modification of an initial myopia control solution used by a myopic subject, comprising one or more memories having in memory values of individual features of said myopic subject and values of environmental parameters relative to conditions of use by said myopic subject of said initial myopia control solution and comprising one or more processors programmed to: determine an individual score linked to a role of said individual features in causing the myopia of said myopic subject, said individual score depending on said values of individual features, determine an environmental score linked to a role of said environmental parameters in causing the myopia of said myopic subject, said environmental score depending on said values of said environmental parameters, and determine said modification of said initial myopia control solution for said subject based on said individual and environmental scores.
A method of forming an optical element includes providing a forming insert in a thermoforming apparatus, the forming insert including a plurality of microstructures formed on a forming surface of the forming insert; heating the forming insert to a first predetermined temperature; disposing an element comprised of a polymer material in the thermoforming apparatus and in contact with the forming surface of the forming insert; and thermoforming, via the forming surface of the forming insert, the element, the molded element having microstructures formed on a surface thereof.
A lens element intended to be worn in front of an eye of a wearer, the lens element being adapted to provide a prescribed dioptric correction function in a prescription plane, the lens element including an arrangement of microoptical elements. When receiving a collimated beam of monochromatic light, the lens element is configured to produce a primary luminous intensity maximum in a prescription plane, and the arrangement of microoptical elements is configured to produce at least one first secondary luminous intensity maximum at a first proximity difference from the prescription plane and at least one second secondary luminous intensity maximum at a second proximity difference from the prescription plane, the first proximity difference and the second proximity difference having opposite signs.
A method of forming an optical lens includes providing a lens having microstructures on a surface thereof and an adhesive layer coated thereon; pressing a coating stack, via a carrier layer attached to a first surface of the coating stack by a release coating, against the adhesive layer, a second surface of the coating stack being in contact with the adhesive layer; and curing the adhesive layer and removing the carrier layer from the first surface of the coating stack via the release coating, wherein a thickness of the adhesive layer is greater than a depth of the microstructures on the surface of the lens.
The disclosure provides an additive manufacturing system comprising a tank (10) filled with a volume of a predetermined material (11), a building platform (20) on which layers (3) made from the predetermined material are formed, a curing device (12) configured for at least partially hardening the layers of the ophthalmic device, a transparent plate (21) located between the building platform (20) and the curing device (13), and a flexible separation film (22) mechanically connected by ends (31) to a frame (30) and at least partially located between the transparent plate (21) and the building platform (20), the additive manufacturing system (1) being configured so that the transparent plate, the flexible separation film and the building platform are movable one relative to the other and admit first relative positions corresponding to building positions of a layer, in which the transparent plate is applied against the flexible separation film which is in a tense state, and second relative positions corresponding to layering positions of a layer, in which the transparent plate is moved relative to the frame and is remote to the flexible separation film which is at least partially in a loose state.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29L 11/00 - Éléments optiques, p. ex. lentilles, prismes
A method for producing spectacles lenses (10), in which method, starting with a blank which has predetermined surface geometries on a front face (12) and a rear face (14) remote therefrom and having a contoured edge (16) therebetween, a finished part is formed by material removal and/or deposition. In a step of generating an optically active shape of the spectacles lens, the semifinished product is shaped, which has an edge region (18) in which an orientation structure (20) is also made. For at least one subsequent step of further machining, the location and position of the semifinished product in space are clearly identified and established with the aid of a positioning receptacle (22) arranged in a defined manner in space.
The invention relates to a method for determining an ophthalmic lens for a wearer and suitable for correcting the wearer's vision, comprising c) determining a virtual lens by an optimization process involving calculating iteratively a surface of the virtual lens so as to match target optical characteristics of a target lens, checking whether peripheral defocus values of the virtual lens satisfy a predetermined criterion, and if the predetermined criterion is not satisfied, reiterating the calculation of the surface of the virtual lens after modifying the target lens of the previous iteration. The determined ophthalmic lens is defined as being the virtual lens at the end of the optimization process. The invention also relates to an ophthalmic lens for a wearer for correcting the wearer's vision and intended to reduce peripheral defocus.
A fused filament fabrication 3D printing method for fabricating an optical article includes applying a surface treatment (1710) to a building plate; heating the building plate to a predetermined plate temperature (1720); dispensing a thermoplastic through a nozzle set at a predetermined nozzle temperature onto the building plate (1730) while translating the nozzle or the building plate according to a first predetermined pattern at a predetermined printing speed to form a first layer; and solidifying the first layer, wherein a range of the predetermined plate temperature is between 30° C. lower than a glass transition temperature of the thermoplastic and 20° C. higher than the glass transition temperature of the thermoplastic, and a range of the predetermined nozzle temperature is at least 100° C. higher than the glass transition temperature of the thermoplastic, and at least 50° C. lower than a degradation temperature of the thermoplastic.
B29C 64/118 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant un matériau filamentaire mis en fusion, p. ex. modélisation par dépôt de fil en fusion [FDM]
A computer-implemented method for determining a dipping orientation of an ophthalmic lens (2) with respect to a dipping apparatus feature, the method comprising the step of: —determining a lens parameter relative to a shape of the ophthalmic lens (2): —determining said dipping orientation taking into account an interaction parameter representative of a relationship between said lens parameter and said dipping apparatus feature.
Method, for example implemented by computer means, for characterizing at least part of a lens element adapted for a wearer and comprising a plurality of optical elements, each optical element of the plurality of optical elements providing at least an optical power, for example so as to at least one of slow down, retard or prevent a progress of the abnormal refraction of the eye of the wearer; wherein the method comprises: —obtaining a two-dimension representation of the local optical power of at least part of the lens element using a deflectometry method, for example a fringe deflectometry method, —determining the optical power distribution over at least part of the two-dimension representation of the lens element, and—characterizing at least the part of the lens element within said at least part of the two-dimension representation of the lens element by analyzing the determined optical power distribution.
A method for objectively determining the optimal correction of an optical refraction of a subject, comprising the steps of: a) providing said eye of the subject with successive distinct lens powers and recording the corresponding successive neural signals of the subject while said eye of the subject receives a visual stimulus through each lens power, until the recorded neural signal corresponding to one of the lens power shows a maximum neural activity as compared to all the other recorded neural signals (blocks E2 to E5), b) determining that the optimal correction of the ophthalmic refraction of the subject corresponds to a lens power with which the subject exhibits a neural signal showing a given reduced neural activity as compared to the maximum neural activity obtained in step a) (blocks E6 and E7).
A61B 3/103 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour la détermination de la réfraction, p. ex. réfractomètres, skiascopes
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
The invention relates to a process for making a mold assembly (10) suitable for molding an ophthalmic lens, comprising steps of: —providing two molding shells (200A, 200B) each having a main surface (202A, 202B) to be placed in front of each other and a peripheral edge (203A, 203B), —providing a closing member (100) in the form of a band, —dropping a strip of glue (300) off around at least a major part of the peripheral edge of each molding shell, and—positioning said closing member around at least a major part of the peripheral edges of the two molding shells.
A method performed by a battery-powered electronic eyewear device for managing a battery consumption of said eyewear device based on a utilization of said eyewear device by a user, the eyewear device comprising at least one electrochromic cell, the method comprising: recording data related to the utilization of the eyewear device by the user, said utilization being based on at least the use of at least one electrochromic cell feature of the eyewear device by the user driven by electrochromic cell parameters, analyzing said recorded data and determining at least one average usage pattern of the eyewear device by the user, comprising average repartitions of ideal values of said electrochromic cell parameters in the average usage pattern and/or of power consumption of the eyewear device by the user in the average usage pattern, adapting the management of the battery consumption of the eyewear device by piloting values of the electrochromic cell parameters based on at least the average usage pattern of the user and on charging data related to a remaining state of charge of the battery.
A method for monitoring an evolution of a visual acuity value of a user of a digital device configured for displaying optotypes at a chosen optotype size, and computing a guessing rate corresponding to a percentage of optotypes correctly identified by a user. The method includes determining a visual acuity reference value based on at least a predefined first guessing rate threshold of the displayed optotypes at an optotype reference size, testing the evolution of the visual acuity value by displaying optotypes at a first optotype size corresponding to the optotype reference size, measuring the guessing rate of the displayed optotypes, and, if the measured guessing rate is below the first guessing rate threshold by more than a tolerance value, remeasuring the guessing rate of displayed optotypes at a second optotype size, the second optotype size being superior to the first optotype size.
The disclosure relates to a method for engraving an ophthalmic device, comprising: providing a photo-ablation device configured to engrave at least one face of the ophthalmic device; providing a marking pattern to be engraved on the at least one face of the ophthalmic device thanks to the photo-ablation device; and determining a kinematics to engrave the marking pattern on the at least one face of the ophthalmic device, wherein the kinematics includes a marking pattern kinematics and an engraving kinematics, both being defined as a function of at least one parameter amongst geometrical characteristics of the at least one face of the ophthalmic device to be engraved, operational parameters of the photo-ablation device, and geometrical characteristics of the marking pattern.
A lens element intended to be worn in front of an eye of a person comprising: a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of said 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 to slow down the progression of the abnormal refraction of the eye.
G02B 3/04 - Lentilles simples ou composées à surfaces non sphériques à surfaces continues engendrées par une rotation autour d'un axe, mais s'écartant d'une véritable sphère
G02C 7/06 - VerresSystèmes de verres bifocauxVerresSystèmes de verres multifocaux
G02C 7/08 - Verres auxiliairesDispositions pour faire varier la distance focale
A lens element intended to be worn in front of an eye of a person comprising: a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of said eye of the person and a second refractive power different from the first refractive power; 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.
G02B 3/04 - Lentilles simples ou composées à surfaces non sphériques à surfaces continues engendrées par une rotation autour d'un axe, mais s'écartant d'une véritable sphère
G02C 7/06 - VerresSystèmes de verres bifocauxVerresSystèmes de verres multifocaux
G02C 7/08 - Verres auxiliairesDispositions pour faire varier la distance focale
An ophthalmic element includes a vision base element and a film structure that is adhered to an optical surface of the vision base element, so that the film structure conforms to the optical surface. The film structure comprises at least one auxetic film that has a negative Poisson ratio. Using an auxetic film suppresses wrinkles, cracks and delamination that may appear in the ophthalmic element when the optical surface is synclastic.
A lens element intended to be worn in front of an eye of a person comprising: a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of said eye of the person and a second refractive power different from the first refractive power; 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.
G02B 3/04 - Lentilles simples ou composées à surfaces non sphériques à surfaces continues engendrées par une rotation autour d'un axe, mais s'écartant d'une véritable sphère
G02C 7/06 - VerresSystèmes de verres bifocauxVerresSystèmes de verres multifocaux
G02C 7/08 - Verres auxiliairesDispositions pour faire varier la distance focale
A lens element intended to be worn in front of an eye of a person comprising: a refraction area having a first refractive power based on a prescription for correcting an abnormal refraction of said eye of the person and a second refractive power different from the first refractive power; 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.
G02B 3/04 - Lentilles simples ou composées à surfaces non sphériques à surfaces continues engendrées par une rotation autour d'un axe, mais s'écartant d'une véritable sphère
G02C 7/06 - VerresSystèmes de verres bifocauxVerresSystèmes de verres multifocaux
G02C 7/08 - Verres auxiliairesDispositions pour faire varier la distance focale
36.
SYSTEM FOR EVALUATING A LIGHT-INDUCED DISCOMFORT AND ASSOCIATED METHOD
A system (3) for evaluating a light-induced discomfort of a user, the system (3) comprising a sensor (9) for measuring an electrical conductance of a skin surface of the user, the system (3) being configured for: - obtaining through the sensor (9) at least one measurement of the electrical conductance of the skin surface of the user, - obtaining at least one value of at least one parameter representative of the at least one measurement of the electrical conductance, and - comparing the at least one value of the at least one parameter to at least one reference value and detecting a light-induced discomfort of the user based on the comparison.
An optical device for capturing images of an eye of an individual, the optical device having a first measurement channel and a second measurement channel. The first measurement channel generates at least one first lighting beam directed toward the eye and along a first axis and to capture at least one first image of the eye when illuminated by the at least one first lighting beam. The second measurement channel is generates at least one second lighting beam directed toward the eye and along a second axis separated from the first axis by at least 5°, for example at least 10° or at least 20° and to capture at least one second image of the eye when illuminated by the at least one second lighting beam. The first measurement channel and the second measurement channel are synchronized together.
A61B 3/103 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour la détermination de la réfraction, p. ex. réfractomètres, skiascopes
A61B 3/14 - Dispositions spécialement adaptées à la photographie de l'œil
38.
METHOD AND DEVICE FOR EVALUATING REFRACTION OF AN EYE OF AN INDIVIDUAL USING MACHINE LEARNING
A method for estimating refraction of an eye of an individual using an image capturing device, the method including acquiring eccentric photorefraction images of the eye using the image capturing device when the eye is successively illuminated by a plurality of light sources, analyzing the eccentric photorefraction images by a calculation module in order to determine at least one refraction parameter, the analyzing is carried out by machine learning using at least one neural network configured to determine the at least one refraction parameter from the eccentric photorefraction images, the plurality of light sources in the step of acquiring being positioned at least two different eccentric distances from the optical axis of the image capturing device and/or arranged along at least two different directions transverse to the optical axis of the image capturing device.
A61B 3/103 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour la détermination de la réfraction, p. ex. réfractomètres, skiascopes
A61B 3/14 - Dispositions spécialement adaptées à la photographie de l'œil
The invention relates to an optical material having a refractive index higher than or equal to 1.50 obtained by polymerization of a polymerizable composition comprising at least one polythiol and at least one polymerizable compound of formula (I) in which R1and R2represent independently a hydrogen atom, a substituted or unsubstituted alkyl group, an aryl group, or R1and R2, taken together, form a divalent group of formula -R1-R2-, in which -R1-R2- represents a substituted or unsubstituted alkylene group, Z represents a divalent group connected to the adjacent mercapto -SH group through a carbon atom, and n = 0 or 1.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
C07C 321/14 - Sulfures, hydropolysulfures ou polysulfures ayant des groupes thio liés à des atomes de carbone acycliques d'un squelette carboné acyclique saturé
C07C 321/00 - Thiols, sulfures, hydropolysulfures ou polysulfures
C07C 321/18 - Sulfures, hydropolysulfures ou polysulfures ayant des groupes thio liés à des atomes de carbone acycliques d'un squelette carboné acyclique non saturé
40.
OPTICAL MATERIAL DERIVED FROM A POLYMERIZABLE COMPOUND CONTAINING ALKYNYLENE AND THIOL FUNCTIONS
The invention relates to an optical material having a refractive index higher than or equal to 1.50 obtained by polymerization of a polymerizable composition comprising at least one polymerizable compound having at least two mercapto -SH groups, and at least one alkynylene -C≡C- group connected on each side to a carbon atom.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
C07C 321/00 - Thiols, sulfures, hydropolysulfures ou polysulfures
C07C 321/08 - Thiols ayant des groupes mercapto liés à des atomes de carbone acycliques d'un squelette carboné acyclique non saturé
C07C 321/18 - Sulfures, hydropolysulfures ou polysulfures ayant des groupes thio liés à des atomes de carbone acycliques d'un squelette carboné acyclique non saturé
C07C 321/28 - Sulfures, hydropolysulfures ou polysulfures ayant des groupes thio liés à des atomes de carbone de cycles aromatiques à six chaînons
C07C 323/52 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des groupes carboxyle liés au même squelette carboné ayant les atomes de soufre des groupes thio liés à des atomes de carbone acycliques du squelette carboné le squelette carboné étant acyclique et saturé
41.
HINGE ASSEMBLY FOR EYEWEAR, EYEWEAR COMPRISING SUCH A HINGE ASSEMBLY AND METHOD FOR ASSEMBLING SUCH A HINGE ASSEMBLY
A hinge assembly for eyewear includes an anchor element configured to be applied to a front of eyewear; an anchor box configured to be applied to a temple, the anchor box has at least one housing chamber with an inner retaining member; at least one hinging member with at least one end portion rotatably coupled to the anchor element and at least one shaft portion ending with at least one head portion; at least one elastic element passed through by at least one respective shaft-like shaped portion and, from one side, in contact with the inner retaining member and, from the other side, in contact with the at least one head portion; wherein the hinge assembly reversibly passes from a first stable opening position to a second stable closing position and vice versa and from the first stable opening position to a third unstable overtravel position and vice versa.
The invention relates to polymerizable composition comprising at least one polythiol, at least one polyisocyanate or polyisothiocyanate, and at least one polymerizable compound of formula (I), in which R1and R2represent a hydrogen atom, a substituted or unsubstituted alkyl group, an (hetero)aryl group, or R1and R2, taken together, form a divalent group of formula -R1- R2-, in which -R1-R222 or NHR4in which R4represents a substituted or unsubstituted alkyl group or (hetero)aryl group, and R3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, an (hetero)aryl group, or a CR'1R'2Z' group in which R'1, R'2and Z' are defined as R1, R2 and Z.
The invention relates to a polymerizable composition comprising a) at least one polyiso(thio)cyanate and at least one prepolymer having thiol end groups obtained from the reaction of a mixture of at least one polythiol and at least one polymerizable compound of formula (I), or b) at least one polythiol and at least one prepolymer having isocyanate or isothiocyanate end groups of formula -NCX where X is O or S, obtained from the reaction of a mixture of at least one polyiso(thio)cyanate and at least one polymerizable compound of formula (I), in which R1and R2represent a hydrogen atom, a substituted or unsubstituted alkyl group, an (hetero)aryl group, or R1and R2, taken together, form a divalent group of formula -R1-R2-, in which -R1-R222 or NHR4in which R4represents a substituted or unsubstituted alkyl group or (hetero)aryl group, and R3represents a hydrogen atom, a substituted or unsubstituted alkyl group, an (hetero)aryl group, or a CR'1R'2Z' group in which R'1, R'2and Z' are defined as R1, R2 and Z. (Formula (I))
C08G 18/38 - Composés de bas poids moléculaire contenant des hétéro-atomes autres que l'oxygène
C08G 18/75 - Polyisocyanates ou polyisothiocyanates cycliques cycloaliphatiques
C08G 18/10 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle
C08G 18/67 - Composés non saturés contenant un hydrogène actif
44.
OPTICAL MATERIAL DERIVED FROM A POLYMERIZABLE COMPOSITION CONTAINING A TERMINAL DIALKYNE COMPOUND
The invention relates to a polymerizable composition for an optical material comprising at least one polythiol, at least one polyisocyanate or polyisothiocyanate, and at least one polymerizable compound of formula (I), in which R1, R2, R'1and R'2represent a hydrogen atom, a substituted or unsubstituted alkyl group, an (hetero)aryl group, or R1and R2, taken together, form a divalent group of formula -R1-R2-, in which -R1-R2- represents a substituted or unsubstituted alkylene group, or R'1and R'2, taken together, form a divalent group of formula -R'1-R'2-, in which -R'1-R'2- represents a substituted or unsubstituted alkylene group, Z represents a divalent group and n = 0 or 1.
C08G 18/38 - Composés de bas poids moléculaire contenant des hétéro-atomes autres que l'oxygène
C08G 18/67 - Composés non saturés contenant un hydrogène actif
C08G 18/75 - Polyisocyanates ou polyisothiocyanates cycliques cycloaliphatiques
C08G 75/045 - Polythioéthers à partir de composés mercapto ou de leurs dérivés métalliques à partir de composés mercapto et de composés insaturés
45.
COMPUTER-IMPLEMENTED METHOD, APPARATUS, SYSTEM AND COMPUTER PROGRAM FOR PROVIDING A USER WITH A REPRESENTATION OF AN EFFECT OF A SIGHTEDNESS IMPAIRMENT CONTROL SOLUTION
A computer-implemented method, apparatus, system, and computer-readable storage medium for providing a user with a representation of an effect of a sightedness impairment control solution on the user. The computer-implemented method includes obtaining data representative of at least one characteristic of the sightedness impairment control solution, at least one current characteristic of the user and behaviour of the user, determining, based on a model and the data, at least one first future characteristic of the user if the user uses the sightedness impairment control solution and at least one second future characteristic of the user if the user does not use the sightedness impairment control solution, and generating a first image based on the at least one first future characteristic and a second image based on the at least one second future characteristic.
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
46.
METHOD FOR THERMOFORMING A FILM BY THERMAL SHRINKAGE AND LAMINATION THEREOF ON AN OPTICAL ARTICLE
A method comprising providing an article having a non-zero radius of curvature and a thermoplastic film, moving relatively to each other said thermoplastic film and said article to bring them into contact, applying heat to the thermoplastic film so that the heated thermoplastic film shrinks and takes the shape and curvature of the article, resulting in a thermoformed thermoplastic film, and optionally laminating said thermoformed thermoplastic film on a surface of an optical article by means of a layer of adhesive, said layer of adhesive being positioned between the optical article and the thermoplastic film.
The invention provides a method implemented by computer means for adjusting color of at least one active lens of a smart spectacle (1) when used by a wearer, said method comprising: acquiring (100) at least one image representing said wearer and its current environment; determining (110) a first set of N colors, N being an integer greater or equal to 1, said first set of N colors comprising dominant colors in said at least one acquired image; determining (120) a second set of M harmonized colors, M being an integer greater or equal to 1, based on said first set of N colors; selecting (130) at least one harmonized color within said second set of M harmonized color; and controlling (140) said at least one active lens so that an external color of said at least active lens corresponds to the selected at least one harmonized color.
Device for determining values of parameters representing the visual behaviour of a person, handheld digital device and computer-implemented method. The device is configured for determining a first visual acuity of the person by displaying at least one first optotype, a size of the at least one first optotype varying during the display according to a distance between the device and the person so that an angular size of the at least one first optotype, from a point of view of the person, is fixed. The device is also configured for determining a first relative motion, the first relative motion being a relative motion of the person with respect to the device during the determination of the first visual acuity.
A61B 3/032 - Dispositifs pour présenter des symboles ou des caractères d'épreuve, p. ex. projecteurs de mires
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
49.
METHOD AND SYSTEM FOR DETERMINING FITTING PARAMETERS FOR FITTING AN OPHTHALMIC LENS IN A RIM OF A SPECTACLE FRAME FOR AN INDIVIDUAL
The invention relates to a method (100) and system for determining fitting parameters for fitting an ophthalmic lens in a rim of a spectacle frame for an individual. Frame 3D data including points representative of said rim are first determined (110) in a predetermined 3D reference system attached to the head of said individual. The individual is then asked (120) to wear a head-mounted display device configured to display virtual images towards its eyes. Virtual images representatives of at least one simulated real-life environment are displayed (130) by said head-mounted device, and the individual is asked to adapt his posture to said at least one simulated real-life environment. While said individual adapts his posture, an eye tracker device embedded in said head-mounted display device tracks (140) eye motions, and a main gaze direction is determined (150) in said predetermined 3D reference system based on the tracked eye motions. Fitting parameters can then be determined (160) by calculating a position of a fitting point of an ophthalmic lens relative to said spectacle frame, said fitting point corresponding to an intersection of said main gaze direction going through at least an eye rotation center of said individual and said frame 3D data.
A61B 3/113 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour déterminer ou enregistrer le mouvement de l'œil
A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
50.
METHOD FOR ENCAPSULATING A MICROSTRUCTURED LENS BY PIPC
A method of forming an optical lens includes providing a first mold insert of a molding device having a contacting surface, the contacting surface including a plurality of inverted microstructures disposed on the contacting surface, each microstructure of the plurality of inverted microstructures having a shape inversely related to a shape of microstructures on a surface of a molded base lens; replacing the first mold insert with a second mold insert having a contacting surface thereof; applying a curable coating to a surface of the base lens having the microstructures formed thereon; pressing the contacting surface of the second mold insert into at least a portion of the curable coating applied to the surface of the base lens; and curing the curable coating into a curable layer, the microstructures being substantially entirely encapsulated in the curable layer.
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
An apparatus and a related method are for unpacking optical elements disposed in a package box which is closed. The apparatus includes a package identification unit equipped with a reader for identifying the package box, a first interface to exchange data with a package database containing information related to the dimensions and identity of package boxes, to the orientation of an optical element within a package box, to the presence or not of a plastic cup within a package box, a laser cutting unit to cut a package box according to a dedicated cutting pattern, an opening and take-out unit for opening a package box which has been cut according to the dedicated cutting pattern, and for taking the optical element out of the opened package, and a waste management unit to sort out the empty package box and separately, when present, a plastic cup.
G06K 7/14 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire utilisant la lumière sans sélection des longueurs d'onde, p. ex. lecture de la lumière blanche réfléchie
52.
METHOD FOR MANUFACTURING AN OPTICAL DEVICE, MANUFACTURING DEVICE FOR MANUFACTURING THE OPTICAL DEVICE, THE OPTICAL DEVICE AND EYEWEAR
Method for manufacturing an optical device, manufacturing device for manufacturing the optical device, the optical device and eyewear Method for manufacturing an optical device, manufacturing device for manufacturing the optical device, the optical device and eyewear. The optical device comprises a first optical element and a second optical element. The method comprises a step of placing on a support a plurality of layers comprising successively the first optical element, a layer of a compression-activated glue, the second optical element. The layer of the compression- activated glue is between the first optical element and the second optical element. The support comprises spacers placed around the plurality of layers. The spacers have a height superior to a height of the plurality of the layers. The method also comprises a step of placing a layer of an elastic material covering the plurality of the layers and the spacers and a step of compressing the plurality of the layers to achieve a compression of the compression-activated glue above a predetermined compression level.
The invention relates to [an ophthalmic article (1) in particular for gamer eyewear, comprising at least a first and a second electrochromic compound (7A, 7B), where the first electrochromic compound (7A) acts as a filter having a transmission rate of less than 20%, preferentially less than 10% in a range between 400nm and 500nm, preferentially 440-500nm and a transmission rate higher than 50%, preferentially higher than 60%, in a range between 580-620nm, preferentially between 580-610nm in one activated state and the second electrochromic compound (7B) acts as a filter having a transmission rate of higher than 20%, preferentially higher than 30%, in a range between 400nm and 500nm, preferentially 440- 500nm and a transmission rate less than 20% preferentially less than 10% in a range between 580-620nm, preferentially between 580-610nm in one activated state.
Spectacle lens comprising at least: - a first zone comprising a plurality of micro-optical elements, and - a second zone comprising a plurality of micro-optical elements, wherein the first zone comprising at least one first annular part defined by points of the first zone that are at a first angular distance from the first center of the first zone and the second zone comprising at least one second annular part defined by points of the second zone that are at a second angular distance from the second center of the second zone, a logarithm of an integration of values of the point spread function along the first annular part of the first zone differs by less than 15% from a logarithm of an integration of values of the point spread function along the second annular part of the second zone, the first and second angular distances being equal.
A method and system for determining a risk of an onset or progression of myopia over a timeframe. The method includes determining a value of at least one parameter associated with vision condition of a subject, the at least one parameter including a sensitivity parameter of the subject, the sensitivity parameter being relative to the sensitivity of the subject to a variation of at least one dioptric optical feature of at least one ophthalmic lens placed in front of at least one eye of the subject. The method also includes determining the subject's risk of the onset or progression of myopia over the timeframe, based on the determined value of the at least one parameter.
G16H 50/30 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le calcul des indices de santéTIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour l’évaluation des risques pour la santé d’une personne
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
A61B 3/103 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour la détermination de la réfraction, p. ex. réfractomètres, skiascopes
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G16H 50/70 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour extraire des données médicales, p. ex. pour analyser les cas antérieurs d’autres patients
56.
METHOD FOR MANUFACTURING AN OPHTHALMIC ELEMENT COMPRISING A FILM STRUCTURE
A method for manufacturing an ophthalmic element that comprises a vision base element (12) and a film structure (14) adhered to said vision base element allows limiting or suppressing wrinkles and delaminations. This method implements an auxetic part (27) within a sacrificial film portion (26) that belongs initially to the film structure. In this way, stresses generated in a useful area (24) of the film structure by the sacrificial film portion are reduced. The sacrificial film portion is then removed so that only the useful area of the film structure remains in the ophthalmic element.
B32B 38/00 - Opérations auxiliaires liées aux procédés de stratification
B32B 37/18 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par les propriétés des couches toutes les couches existant et présentant une cohésion avant la stratification impliquant uniquement l'assemblage de feuilles ou de panneaux individualisés
G02C 7/08 - Verres auxiliairesDispositions pour faire varier la distance focale
57.
A METHOD FOR ESTIMATING THE POSITION OF THE OPTICAL CENTER OF AN OPHTHALMIC LENS
This method for estimating a position of an optical center of an ophthalmic lens mounted on a frame, where an image of the frame is obtained by an image capture device, includes: detecting the lens in a stream of images of the frame obtained by the image capture device; obtaining a plurality of dimensional parameters, either of the frame, or of the lens; determining the estimated position of the optical center based on the detected lens and either the plurality of frame dimensional parameters, or the plurality of lens dimensional parameters.
A lens element for a spectacle lens, a contact lens or an intraocular lens, intended to be worn by a wearer having a refraction area having a refractive power based on a prescription for said eye of the wearer and a plurality of n optical elements, at least one of the n optical elements having an optical function of not focusing an image on the retina of the eye of the wearer, the kth optical element being located in a domain defined by a closed contour, k being a positive integer equal or greater than 2 and smaller or equal to n, a coating layer may be deposited on the lens element, wherein, without taking the potential coating layer into account, the least one kth optical element presents as a standard deviation of sphere values of at least 0.4 dpt, where is defined as, H(xi, yi) mean optical curvature operator at position xi, yi of the kth optical element in its domain, being the mean of the mean optical curvatures over the whole domain of the kth optical element, being an integer of number all positions xi yi in the domain of the k-th optical element and being greater than 100.
A method for determining an optical design of a pair of progressive addition lenses to be worn in front of eyes of a wearer, including selecting a starting pair of progressive addition lenses suitable for the near dioptric corrections and the far dioptric corrections; determining, for a given locomotion posture of the wearer, in which the wearer wears the starting pair of progressive addition lenses, a set of differences in prismatic deviation induced by the starting pair of progressive addition lenses between a left eye and a right eye of the wearer over a set of gaze directions; and determining said optical design based on the near and far dioptric corrections, the set of differences, and at least one binocular motility parameter.
A device (10) for retaining a prismatic spectacle lens (12) at one workpiece surface (14) for processing of the other workpiece surface (16) comprises lower and upper parts (20, 22). The lower part has a base (24) with a holding interface (26) and a wedge section (28). The lower part and upper part are rotatable relative to one another by their mutually facing wedge sections about a rotational axis (DA) inclined with respect to the base axis and retention axis so as to tilt the retaining section and base relative to one another. A wedge orientation arrangement comprises an orientation aid (34) at the upper part and/or an abutment (36) between the upper part and lower part, which defines a relative rotational angle end position of the upper part and lower part corresponding with a minimum or maximum tilt of the retaining section with respect to the base.
A computer-implemented method, an apparatus, a system and a computer program for controlling a sightedness impairment of a subject, the method comprising the steps of receiving (201) an image to display to the subject, determining (202) a spatial frequency power spectrum of the received image, generating (203) an intermediate image by modifying a slope of the spatial frequency power spectrum of the received image, generating (204) a modified image based on the intermediate image and commanding (205) a display to the subject of the modified image.
A family of electrochromic compounds of formula (I) comprising a thiophene, selenophene or furan ring is herein disclosed, as well as electrochromic compositions and devices comprising at least one of said electrochromic compounds of formula (I).
C07D 407/14 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes d'oxygène comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant au moins trois hétérocycles
C07D 409/04 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre comme uniques hétéro-atomes du cycle contenant deux hétérocycles liés par une liaison directe de chaînon cyclique à chaînon cyclique
C07D 409/14 - Composés hétérocycliques contenant plusieurs hétérocycles, au moins un cycle comportant des atomes de soufre comme uniques hétéro-atomes du cycle contenant au moins trois hétérocycles
C07D 519/00 - Composés hétérocycliques contenant plusieurs systèmes de plusieurs hétérocycles déterminants condensés entre eux ou condensés avec un système carbocyclique commun non prévus dans les groupes ou
63.
METHOD FOR CHECKING A MACHINED OPHTHALMIC DEVICE AND/OR A MACHINED MOLD FOR MAKING AN OPHTHALMIC DEVICE
The disclosure relates to a method for checking (100) a machined ophthalmic device and/or a machined mold for making an ophthalmic device obtained thanks to a machining system, comprising: - obtaining (101) initial data from the machined ophthalmic device and/or the machined mold, measured in a first predetermined referential, the data obtained being representative of a determined reproductible defect generated on the machined ophthalmic device and/or on the machined mold; - determining (102) a second referential depending on the determined reproductible defect; - manipulating (103) the initial data from the first predetermined referential to the determined second referential in order to obtain transformed data; - deducing (104) from the transformed data a defect value representative of the determined reproductible defect and generated on the machined ophthalmic device and/or on the machined mold.
G05B 19/406 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le contrôle ou la sécurité
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
B24B 13/02 - Machines ou dispositifs conçus pour meuler ou polir les surfaces optiques des lentilles ou les surfaces de forme similaire d'autres piècesAccessoires à cet effet au moyen d'outils possédant des surfaces abrasives dont la forme correspond à la forme de la lentille à travailler
B24B 13/06 - Meulage de lentilles, l'outil ou la pièce étant commandé par des supports d'informations, p. ex. des gabarits, des bandes perforées ou magnétiques
B24B 49/03 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meulerAgencements de l'appareillage d'indication ou de mesure, p. ex. pour indiquer le début de l'opération de meulage comparant la cote instantanée de la pièce travaillée à la cote cherchée, la mesure ou le calibrage étant continus ou intermittents fonctionnant selon la cote finale de la pièce précédemment rectifiée
B24B 49/12 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meulerAgencements de l'appareillage d'indication ou de mesure, p. ex. pour indiquer le début de l'opération de meulage impliquant des dispositifs optiques
B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
A device to assess an ocular motility of a subject, the device having at least one screen configured to display a first image to a first eye of the subject and a second image to a second eye of the subject, the first image comprising a first element that is fixed and the second image comprising a second element that moves according to a movement of the subject.
A61B 3/113 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour déterminer ou enregistrer le mouvement de l'œil
A61B 3/00 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux
66.
LIQUID POLYMERIZABLE ALLYLIC COMPOSITIONS COMPRISING LAKE PIGMENTS
Disclosed is a polymerizable liquid composition for the manufacture of an optical article, including: a) at least one allyl monomer or allyl oligomer, b) at least one initiator for the polymerization of the allyl monomer or allyl oligomer, and c) at least one lake pigment including an organic ionic colorant and at least one compound including metal atoms having a charge opposite to that of the organic ionic colorant, d) wherein the lake pigment is not contained in nanoparticles, which are not the lake pigment itself, if the lake pigment is in the form of particles dispersed in the composition.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
67.
COMPUTER IMPLEMENTED METHOD FOR PREDICTING A LEVEL OF QUALITY OF A VACUUM INTO A VACUUM CHAMBER OF A COATING MACHINE, AND CORRESPONDING DEVICE
The invention relates to a computer implemented method for predicting a level of quality of a vacuum into a vacuum chamber (2) of a coating machine (1) suitable for coating optic elements (8). According to the invention, this method comprises steps of: - acquiring at least one technical feature of the coating machine during coating processes of optic elements, and - predicting said level of quality from the at least one measured technical feature by means of a processing unit that registers a machine learning model, said at least one technical feature being an input of said machine learning model and said level of quality being an output of said machine learning model.
The invention concerns a lens element (11) intended to be worn in front of an eye of a wearer under wearing conditions comprising a substrate (12) with a front face (12F) and a rear face (12R), wherein the substrate (12) comprises a set of furtive diffusive zones (14) having a light diffusion pattern presenting a lateral diffusion pattern and minimized diffusion in a forward main direction with regard to the lateral diffusion pattern, said furtive diffusive zones (14) are arranged in order that the forward main direction passes through the center of rotation (ERC) of an eye model under wearing conditions.
The invention relates to a device for determining a final value of a vision correction power of a final corrective lens to be placed in front of an eye of an individual, said device comprising a computer with one or more memories and one or more processors, wherein : - said one or more memories have in memory: - an initial measured value of a magnitude representative of a refractive feature of the eye of the individual, measured using a first optometry instrument, - an estimated value of said magnitude, calculated using a predetermined model of a second optometry instrument, - a current value of said magnitude determined based on a current corrective lens previously worn by the individual, - said one or more processors are programmed to achieve the following steps: a) comparing a difference between the measured value and the current value of said magnitude to a first threshold value, and b) when the difference between the measured value and the current value of said magnitude is greater than or equal to said first threshold value, comparing the difference between said measured value and said estimated value of said magnitude to a second threshold value, c) determining said final value of the vision correction power based on said comparisons.
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
A machine for filling of a lens mold assembly, the machine including a filling workstation and a pre-filling workstation for preparing the lens mold assembly prior to transferring to the filling workstation The pre-filling workstation includes a lens-mold- assembly-rotation unit operable to hold and rotate the lens mold assembly; a tape-tail- lifting unit having a force applicator operable to apply a force to graze a circumferential surface of a tape around the lens mold assembly to lift open a first tail-end portion of the tape, and a tape-tail-finding unit to intercept the lifted first tail end portion of the tape as the lens mold assembly is being rotated by the lens-mold-assembly-rotation unit and to detect whether the first tail end portion of the tape is intercepted, wherein the lens-mold-assembly rotation unit is configured to stop rotating based a detection that the first tail end portion of the tape is intercepted.
A wearable device for determining a parameter representative of a visual acuity of a user, including a displaying unit configured to display at least one image to at least one eye of the user when the device is worn by the user, an optical unit disposed between the displaying unit and at least one eye of the user when the device is worn by the user, a diffuser disposed between the optical unit and at least one eye of the user when the device is worn by the user so that the diffuser faces at least one eye of the user, at least one light source for stimulating at least one eye of the user, and a sensing unit configured to acquire at least one signal representative of a visual acuity of the user.
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
A61B 3/06 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen de sensibilité à la lumière, p. ex. d'adaptationAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen de vision des couleurs
72.
METHOD AND SYSTEM FOR DETERMINING A TARGET VALUE OF A PARAMETER MEASURED BY A PORTABLE DEVICE
A method for determining a target value for a parameter over an upcoming time window, the method including providing a set of data including, for each preceding time window, the value reached by the parameter and the associated target value, selecting an appropriate time scale among at least two time scales, retrieving data relating to preceding time windows based on the time scale, calculating a success factor based on the comparison between the value reached by the parameter over one or more preceding time windows and the associated target value, and determining the target value based on the success factor and the value reached by the parameter over each preceding time window of the retrieved data. The parameter can be a number of steps measured by a portable pedometer-type device worn by an individual.
A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
G16H 50/30 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le calcul des indices de santéTIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour l’évaluation des risques pour la santé d’une personne
73.
Method for Machining Optical Workpieces, in Particular Spectacle Lenses Made of Plastic
A method for machining optical workpieces has the following steps: i) providing the blank that is to be machined at least on the rear side and edge; ii) receiving the blank without a block in order to retain it in a supported manner; iii) machining the blank on the front side by use of a first tool to form a peripheral geometric shape with a depth greater than or equal to the edge thickness of the semifinished product to be formed; iv) receiving the workpiece to retain it in a supported manner on the front side; and v) machining the workpiece on the rear side by use of a second tool to form the semifinished product with the predetermined surface geometry on the rear side.
B24B 13/00 - Machines ou dispositifs conçus pour meuler ou polir les surfaces optiques des lentilles ou les surfaces de forme similaire d'autres piècesAccessoires à cet effet
74.
ELECTROCHROMIC COMPOUNDS, COMPOSITIONS AND OPTICAL ARTICLES CONTAINING THEM
The invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic polycyclic compounds comprising a five, six or seven-membered ring, wherein said polycyclic compounds contain at least two nitrogen atoms in their cyclic central core. It also relates to the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
C07D 215/00 - Composés hétérocycliques contenant les systèmes cycliques de la quinoléine ou de la quinoléine hydrogénée
C07D 241/00 - Composés hétérocycliques contenant des cycles diazine-1,4 ou diazine-1,4 hydrogéné
C07D 243/00 - Composés hétérocycliques contenant des cycles à sept chaînons comportant deux atomes d'azote comme uniques hétéro-atomes du cycle
C07D 253/00 - Composés hétérocycliques contenant des cycles à six chaînons comportant trois atomes d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe
G02C 7/10 - Filtres, p. ex. pour faciliter l'adaptation des yeux à l'obscuritéLunettes de soleil
75.
Nanoparticles of Encapsulated Light-Absorbing Agent, Preparation Thereof and Ophthalmic Lens Comprising Said Nanoparticles
The invention relates to nanoparticles of a composite material comprising a light absorbing agent dispersed in a matrix of a mineral oxide, to a method for the preparation of such nanoparticles, to the use of said method to modify the hue of nanoparticles of composite material comprising a light absorbing agent, and to an ophthalmic lens comprising such nanoparticles.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
The invention relates to a method for obtaining an optical lens with a target tint comprising steps of: - providing a process for tinting the optical lens to the target tint and a set of process variables suitable to modify the target tint, each process variable being able to take a value, - providing several optical lens samples tinted according to said process for tinting and associated to a set of values for said process variables, - measuring a measured tint of each optical lens sample, - providing models receiving as an input a set of values for the process variables and giving as an output a modelled tint for an optical lens tinted by said process, - fine-tuning said model by minimizing of a first function that depends on a gap between the measured tints and second modelled tints for the optical lens samples, - inverting said model, - performing the process using the set of values to obtain the optical lens having the target tint.
G02C 7/10 - Filtres, p. ex. pour faciliter l'adaptation des yeux à l'obscuritéLunettes de soleil
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
G01J 3/46 - Mesure de couleurDispositifs de mesure de couleur, p. ex. colorimètres
G05B 17/00 - Systèmes impliquant l'usage de modèles ou de simulateurs desdits systèmes
D06P 1/00 - Procédés généraux de teinture ou d'impression des textiles ou procédés généraux de teinture du cuir, des fourrures ou des substances macromoléculaires solides de toutes formes, classés selon les teintures, les pigments ou les substances auxiliaires utilisés
B01F 101/30 - Mélange de peintures ou d'ingrédients de peinture, p. ex. de pigments, de colorants, de couleurs, de laques ou d’émaux
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
77.
CALCULATION MODULE CONFIGURED TO EVALUATE VISUAL AND POSTURAL ERGONOMICS
A calculation module for evaluating visual and postural ergonomics of a user (11) and issuing recommendations, the calculation module being configured to: - obtain at least one value of at least one optical parameter representative of at least one optical element worn by the user (11), - obtain at least one value of at least one positional parameter representative of a position, a movement or a succession of movements of at least one body-part of the user (11), - select reference values for the at least one positional parameter based on the value of the at least one optical parameter, - compare the values of the at least one positional parameter to the selected reference values to detect an inadequacy, and - issue at least one recommendation to the user (11) in case of a detected inadequacy.
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
A61B 3/04 - Montures d'essaiJeux de lentilles pour emploi dans ces montures
A61B 3/00 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux
G16H 20/00 - TIC spécialement adaptées aux thérapies ou aux plans d’amélioration de la santé, p. ex. pour manier les prescriptions, orienter la thérapie ou surveiller l’observance par les patients
A61B 3/113 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure objective, c.-à-d. instruments pour l'examen des yeux indépendamment des perceptions ou des réactions du patient pour déterminer ou enregistrer le mouvement de l'œil
G16H 50/30 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le calcul des indices de santéTIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour l’évaluation des risques pour la santé d’une personne
G02C 11/00 - Accessoires non optiquesFixation de ceux-ci
The invention relates to a method for centering an ophthalmic lens (10) comprising several distinct patterns (12) located around a pattern free area (13), said method being performed by a processing unit and comprising steps of: - acquiring at least one image of said ophthalmic lens, - processing said image to detect said patterns, - deducing therefrom a position of a centering point (AC). According to the invention, after said step of processing, only a part of said patterns are selected as a function of their positions relative to said pattern free area, and during said step of deducing, the centering point position is deduced from only the selected patterns positions.
B24B 13/005 - Dispositifs de blocage, supports ou similairesDispositifs d'alignement
B24B 9/14 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine du verre de pièces optiques, p. ex. de lentilles, de prismes
79.
METHOD FOR IMPRINTING OPHTHALMIC LAMINATES AND RESIST COMPOSITION THEREFOR
The present invention relates to a method of manufacturing an ophthalmic laminate (10) having a first support layer (11, 12), a resist layer (13) having micro or nanostructures (14) at a surface opposite the first support layer; the method comprising: forming on the first support layer, a partially cured resist layer (132) with a surface having micro or nanostructures through: depositing a resist composition (4) onto the first support layer to form a resist layer (41); imprinting the micro or nanostructures (131) onto the resist layer by applying onto the resist layer a stamp (5) provided with a negative image (51) of the micro or nanostructures and partially curing the resist layer until it is no longer tacky but acrylate bonds are still present therein; and removing the stamp. It also relates to the ophthalmic laminate and a method of manufacturing an ophthalmic lens using the ophthalmic laminate.
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
80.
OPHTHALMIC LENS COMPRISING AN ACRYLONITRILE COMPOUND
The present invention relates to ophthalmic lenses comprising a compound of Formula (I), a preparation method thereof and the use of a compound of Formula (I) in an ophthalmic lens to absorb blue light.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
81.
METHOD FOR MANUFACTURING AN OPHTHALMIC LENS, SUPPORT AND MANUFACTURING SYSTEM
A method for manufacturing an ophthalmic lens using an additive manufacturing technology, the ophthalmic lens having at least one useful optical surface and a peripheral region surrounding at least in part the useful optical surface, includes the steps of: providing a support; manufacturing a part of the ophthalmic lens including a portion of the peripheral region, and being in contact with the support by the portion of the peripheral region so that the support bears the part of the ophthalmic lens being manufactured while the useful optical surface is free from any contact with the support. A support designed to bear an ophthalmic lens and a manufacturing system are also described.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29L 11/00 - Éléments optiques, p. ex. lentilles, prismes
A retainer for the processing of workpieces comprises a housing with a holding arrangement for a workpiece to be processed as well as a support arrangement therefor, which comprises a plurality of longitudinally displaceable pins accommodated in a chamber bounded by the housing. The pins are selectively fixable by a clamping mechanism with their pin ends for firmly supporting the workpiece. The clamping mechanism has at least one force transmission element which is movable with respect to the pins by forces able to be applied by fluid so as to selectively clamp the pins in an unactuated state of the retainer or free them in an actuated state of the retainer.
An elastic membrane for a retainer for the processing of optical workpieces is constructed with a securing section for mounting on a housing of the retainer, so as to bound therein a chamber by a retaining section which is connected with the securing section. The retaining section has an outer side, on which a workpiece can be placed over an area by a workpiece surface, and an inner side, which is constructed to contact a support arrangement, for the workpiece. The retaining section has a perforation with at least one opening connecting the inner side and outer side and by way of which a vacuum applied to the chamber can be conducted to the outer side. Associated with the opening is a semi-permeable, functional membrane which extends merely locally in a region directly adjoining the opening.
B24B 13/005 - Dispositifs de blocage, supports ou similairesDispositifs d'alignement
B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p. ex. porte-pièces magnétiques, porte-pièces utilisant le vide
84.
CALCULATION MODULE, SYSTEM AND METHOD FOR DETERMINING PRODUCTION PARAMETERS OF AN OPTICAL ELEMENT
A calculation module for determining a probability model of a parameter of a first reference posture of a subject, the probability model being intended to determine at least a production parameter of an optical element suitable for the subject, the calculation module being configured: to determine at least one value of a parameter of a second reference posture, during an occurrence of the second reference posture, and to determine the probability model of a parameter of a first reference posture based on the at least one value of the parameter of the second reference posture.
A61B 3/00 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
85.
METHOD OF CURING A POLYTHIOURETHANE-BASED SUBSTRATE FROM A PRE-POLYMER
The invention relates to a method of curing a polythiourethane-based transparent casted substrate, comprising the steps of providing a first component A comprising a polythiourethane pre-polymer having iso(thio)cyanate end groups, said pre-polymer having been prepared from at least one polythiol monomer and at least one polyiso(thio)cyanate monomer, used in amounts adapted so that the molar ratio R2 of NCX/SH groups ranges from 2 to 35, providing a second component B comprising at least one polythiol monomer, mixing together first and second components A and B and filling a molding cavity with the resulting polymerizable mixture, curing said polymerizable mixture to obtain a polythiourethane-based transparent substrate, wherein said pre-polymer has been prepared by mixing said at least one polyiso(thio)cyanate monomer and said at least one polythiol monomer in initial amounts such that the initial molar ratio R1 of NCX/SH groups for said monomers ranges from 0.3 R2 to 0.95 R2, polymerizing the mixture, and adding to the mixture an additional amount of at least one polyiso(thio)cyanate monomer such that the molar ratio of NCX/SH groups for all the monomers used in the preparation of said pre- polymer is equal to R2, X being O or S.
C08G 18/10 - Procédés mettant en œuvre un prépolymère impliquant la réaction d'isocyanates ou d'isothiocyanates avec des composés contenant des hydrogènes actifs, dans une première étape réactionnelle
C08G 18/22 - Catalyseurs contenant des composés métalliques
C08G 18/38 - Composés de bas poids moléculaire contenant des hétéro-atomes autres que l'oxygène
C08G 18/76 - Polyisocyanates ou polyisothiocyanates cycliques aromatiques
Method for determining a lens element intended to be mounted on a spectacle frame and to be worn in front of an eye of a wearer, the lens element comprising; —a refraction area having a refractive power based on prescribed refractive power Px for said eye of the wearer, the refraction area comprising at least a central zone, —a plurality of optical elements having an optical function of not focusing an image on the retina of the eye of the wearer, wherein the method comprises: —obtaining frame data representing the spectacle frame on which the lens element is intended to be mounted; —obtaining wearer's data representing at least one parameter of the face of the wearer, —determining fitting data representing the spectacles positioned on the face of the wearer based on the frame data and the wearer's data; and —optimizing at least one parameter of the optical elements based on the fitting data.
The invention relates to a method for issuing an input to a computer from a head-mounted device, the head-mounted device comprising a processing unit and a memory as well as at least one position and/or movement sensor, the head-mounted device being in communication with the computer, the method being implemented while the head-mounted device is worn on a wearer's head.
The invention relates to a method for issuing an input to a computer from a head-mounted device, the head-mounted device comprising a processing unit and a memory as well as at least one position and/or movement sensor, the head-mounted device being in communication with the computer, the method being implemented while the head-mounted device is worn on a wearer's head.
The method comprises steps of:
acquisition of position and/or movement data representative of the movement of the wearer's head by the position and/or movement sensor,
detection of a specific movement pattern based on said position and/or movement data, the specific movement pattern being taken from a library of movement patterns,
determination of a specific input associated with the specific movement pattern in the library, and
issuance of the specific input to the computer.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/02 - Dispositions d'entrée utilisant des interrupteurs actionnés manuellement, p. ex. des claviers ou des cadrans
G06F 3/0346 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection de l’orientation ou du mouvement libre du dispositif dans un espace en trois dimensions [3D], p. ex. souris 3D, dispositifs de pointage à six degrés de liberté [6-DOF] utilisant des capteurs gyroscopiques, accéléromètres ou d’inclinaison
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
88.
DEVICE AND METHOD FOR ESTIMATING A REFRACTIVE ERROR FROM MEASURED VISUAL ACUITY
A refractive error of an eye of a user is estimated by receiving measurements (21) of the visual acuity, VA, of the user's eye, called reference VA measurements, and data (22) related to distinct respectively associated levels of blur, called reference blur data, the reference VA measurements being performed within a reference measurement period by imposing the respective levels of blur on the user's eye. A generic model (23) involving a theoretical VA, theoretical blur data and a theoretical refractive error is particularized into a specific model (24) for the user's eye, from the reference VA measurements and the reference blur data, and information (25) relevant to the refractive error of the user's eye is produced from the specific model and provided. Applications to vision follow-up and to myopia, hyperopia and astigmatism control.
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
A lens element comprising: - a refractive area configured to provide a refractive power, - a plurality of at least twenty optical elements having a transparent optical function of not focusing an image on the retina of the eye of the wearer when the lens element is worn in standard wearing conditions, wherein at least two reference optical elements from the plurality of optical elements are on either side of a reference point of the lens element and standout from the plurality of optical elements.
Holding devices adapted for holding edged optical elements, manufacturing systems including such holding devices, and a corresponding method for manufacturing a compound optical element. The holding devices include a base for supporting a main surface of an edged optical element and either exactly three pegs or a plurality of clamps. The pegs are arranged so that two pegs are in contact with a first area of the side surface of an edged optical element positioned on the base while the remaining peg is in contact with a second area of the side surface only if a specific portion of the first or of the second area is within a specific position and orientation range about three perpendicular axes. The clamps are arranged to collectively hold an edged optical element positioned on the base by restricting its mobility with respect to three degrees of freedom.
Calculation module, system and computer-implemented method for determining an identity of an individual. The calculation module is configured to obtain a signal representing vibrations produced by heartbeats of a heart of the individual, to determine a representative segment of the signal and to compare the representative segment with a plurality of model segments to determine the identity of the individual, the model segments being associated respectively with model identities.
The invention relates to an optometry device for testing the eyes of an individual, comprising a computer with one or more processors programmed to perform a sequence of subjective tests comprising at least a first and a second predetermined subjective test, leading to the determination of values of one or more refractive features of one or more of the eyes of the individual wherein said one or more processors are programmed to: a) perform said first predetermined subjective test, thereby determining a provisory value of a first refraction feature of the eye of the individual, b) at the end of said first predetermined subjective test, perform a verification test for detecting a potential error in said provisory value of the first refraction feature determined in step a), c) based on the result of said verification test, determine a next subjective test to be performed or ending the sequence of subjective tests.
A61B 3/00 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux
A61B 3/028 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen d'acuité visuelleAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour la détermination de la réfraction, p. ex. phoromètres
A61B 3/032 - Dispositifs pour présenter des symboles ou des caractères d'épreuve, p. ex. projecteurs de mires
A61B 3/04 - Montures d'essaiJeux de lentilles pour emploi dans ces montures
A61B 3/06 - Appareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen de sensibilité à la lumière, p. ex. d'adaptationAppareils pour l'examen optique des yeuxAppareils pour l'examen clinique des yeux du type à mesure subjective, c.-à-d. appareils de d’examen nécessitant la participation active du patient pour examen de vision des couleurs
93.
TRANSMISSION OPTICAL SYSTEM OF DETERMINED RESIDUAL REFLECTION COLOR, SYSTEM FOR MANUFACTURING THEREOF AND APPARATUS FOR EVALUATING A DIFFERENCE IN RESIDUAL REFLECTION COLOR
The invention concerns a transmission optical system (1). According to the invention, the transmission optical system (1) comprises an optical base element (14) having a first face (11) and a second face (12), an interferential coating (13) on the first face providing the transmission optical system with a mean visible light reflection factor Rv that is less than or equal to 2.5 %, said transmission optical system presenting by reflection on said first face a residual reflection color, wherein the transmission optical system comprises a residual color identifier (21) based in part on colorimetric coordinates of the transmission optical system in CIELab color space and in part on colorimetric coordinates of the transmission optical system in CIELUV color space.
A method for forming a mold insert includes forming a stamp, a surface of the stamp including a plurality of inverted microstructures formed thereon; and pressing the stamp into a medium disposed on a surface of a first mold insert to form a microstructured film, the microstructured film including a plurality of microstructures formed on a surface of the microstructured film based on the plurality of inverted microstructures, the plurality of microstructures being complementary to the plurality of inverted microstructures.
A mold insert includes a plurality of microstructures along a surface of the mold insert and a metal alloy, wherein the metal alloy has a thermal conductivity between 1 and 50 W/m-K. and wherein the metal alloy has a modulus of between 100 GPa and 1000 GPa.
B24B 9/14 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine du verre de pièces optiques, p. ex. de lentilles, de prismes
B24B 49/16 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meulerAgencements de l'appareillage d'indication ou de mesure, p. ex. pour indiquer le début de l'opération de meulage tenant compte de la pression de travail
B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
A lens element intended to be worn in front of an eye of a wearer, the lens element comprising: - a holder having at least one first refractive power, - a plurality of sets of optical elements superimposed on the holder, each set being formed by a plurality of optical elements having a common focal point Fi associated with at least an optical power Pi, characterized in that for each set of optical elements, a prism angle of each optical element of this set varies according to the distance between the optical element and the common focal point Fi of said set of optical elements
A mold insert includes a base, a material of the base being a metal; a body disposed adjacent to the base along a first side of the body, a material of the body having a thermal conductivity between 0.05 and 5 W/m-K; and a working stamp disposed adjacent to the body along a second side of the body, the working stamp including a plurality of microstructures.
An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px. The optical lens includes a refraction area having a refractive power based on the prescribed refractive power Px for the eye of the wearer and including at least the central zone of the optical lens, and a plurality of optical elements having an optical function of not focusing an image on the retina of the eye of the wearer. The optical elements are arranged based at least on the prescribed refractive power Px and the shape of the retina of the wearer.
There is provided a surfacing station for processing of surfaces of optical elements as workpieces, including a processing unit configured to process surfaces of optical elements; a controller unit configured to communicate with a database containing processing protocols, which can be carried out by the surfacing station, and to control operation of the processing unit in accordance with the processing protocols; and an identification tag base configured to communicate with the controller unit and configured to determine identification tags of consumable items used by the surfacing station, the controller unit being configured to enable a surfacing protocol for processing of the optical elements as workpieces in function of an identified consumable item.
B24B 13/06 - Meulage de lentilles, l'outil ou la pièce étant commandé par des supports d'informations, p. ex. des gabarits, des bandes perforées ou magnétiques
B24B 9/14 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière propre aux objets à meuler de matière inorganique non métallique, p. ex. de la pierre, des céramiques, de la porcelaine du verre de pièces optiques, p. ex. de lentilles, de prismes
B24B 13/00 - Machines ou dispositifs conçus pour meuler ou polir les surfaces optiques des lentilles ou les surfaces de forme similaire d'autres piècesAccessoires à cet effet
B24B 27/00 - Autres machines ou dispositifs à meuler
B24B 49/12 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meulerAgencements de l'appareillage d'indication ou de mesure, p. ex. pour indiquer le début de l'opération de meulage impliquant des dispositifs optiques
B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
