cLiofof a progressive lens by generating, thanks to virtual reality, a gaze map of the user while following a stimulus in at least two planes at two different distances. Once the gaze maps have been made in those two planes or more, the area of each zone is calculated from the maximum horizontal and vertical amplitudes and the points of maximum frequency. In this way, the lens is adapted to the way a user looks.
Method to establish the size of the zones of near Ac, far AL and intermediate Ai vision of a progressive lens by generating, thanks to virtual reality, a gaze map of the user while following a stimulus in at least two planes at two different distances. Once the gaze maps have been made in those two planes or more, the area of each zone is calculated from the maximum horizontal and vertical amplitudes and the points of maximum frequency. In this way, the lens is adapted to the way a user looks.
A61B 3/113 - Appareils pour l'examen optique des yeux; Appareils 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
G02C 7/06 - Verres; Systèmes de verres multifocaux
The progressive ophthalmic lens comprises at least one multifocal surface, in which at each point of its surface an astigmatism value and a gradient of astigmatism value can be measured, the lens comprising: a far-vision zone with a reference point (FV), a near-vision zone with a reference point (NV), an intermediate vision zone with a progression path that connects the far vision zone and the near vision zone, a foveal projection, and a para-foveal projection, and said lens defining a lens addition. If the lens addition is different than 2.00D, the astigmatism value is k*Add*0.41D, being Add the lens addition and k 0.5 and, if the progression path is shorter than 15mm, the maximum astigmatism value of the foveal projection is substituted by (-0.03*d)D/mm + 0.86D, if the lens progression path is larger than 15mm, the maximum astigmatism value of the foveal projection is substituted by (-0.02*d)D/mm + 0.71 D.
A progressive ophthalmic lens includes at least one multifocal surface, in which at each point of its surface, an astigmatism value and a gradient of astigmatism value can be measured, the lens including: a far-vision zone with a reference point (FV), a near-vision zone with a reference point (NV), an intermediate vision zone with a progression path that connects the far vision zone and the near vision zone, a foveal projection, and a para-foveal projection, and said lens defining a lens addition. When the lens addition is different than 2.00 D, the astigmatism value is k*Add*0.41 D, where Add indicates the lens addition and k is 0.5 and, if the progression path is shorter than 15 mm, the maximum astigmatism value of the foveal projection is (−0.03*d) D/mm+0.86 D, and when the lens progression path is larger than 15 mm, the maximum astigmatism value of the foveal projection is (−0.02*d) D/mm+0.71 D.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Image scanners; Optical scanners; Electronic optical scanners; Downloadable Image analysis software for medical results in the field of optics and ophthalmology; Optical goods, namely, optical glasses; Optical lenses made of glass; Graduated glassware; Ophthalmic lenses; Corrective eyewear; Spectacles; Anti-glare glasses; Sunglasses; Goggles for sports; Spectacle frames, lenses and cases; Contact lenses; Containers for contact lenses; Surveyors' levels; Spectacle chains and cords; Microscopes; Data processing equipment, computers; Downloadable computer software programs for operating applications in the field of optics and ophthalmology Ophthalmological research and development services; design services for customized optical and ophthalmic products; Scientific and technological consulting services within the field of optics and ophthalmology, and research and design relating thereto; Industrial analysis and industrial research on optics and ophthalmology; Calibration measurement and quality control; Material testing; Research and development of new products for others
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Image scanners; Electronic and optical scanners; Image analyzers; Optical apparatus and instruments; Opticians' goods; Optical glass; Graduated glassware; Ophthalmic lenses; Corrective eyewear; Spectacles; Anti-glare glasses; Sunglasses; Sports (goggles for -); Spectacle frames, lenses and cases; Contact lenses; Containers for contact lenses; surveyors’ levels; Spectacle chains and cords; Microscopes; Data processing equipment, computers; Computer programs (software) for applications in the field of optics and ophthalmology; Downloadable electronic publications relating to optics and ophthalmology. Research, design and development of customised optical and ophthalmological goods; Scientific and technological services within the field of optics and opthalmology, and research and design relating thereto; Analysis and industrial research on optics and opthalmology; Calibration (measurement) and quality control; Material testing; Research and development of new products for others.
8.
Method for optimising a progressive ophthalmic lens and method for producing same
A method for optimising a progressive ophthalmic lens and to a method for producing same. Further disclosed it a method for optimising a progressive ophthalmic lens the distribution of power and undesired astigmatism along an optical surface is optimised by minimising the function:
i are 0 or positive, and wherein the subscript i indicates the different points of the optical surface. Summation additionally comprises a term from the group formed by
wherein if any of the terms of the group formed by
i, neither being 0, then summation additionally includes at least one other term from the group.
The invention relates to a method for optimising a progressive ophthalmic lens and to a method for producing same, According to the invention, in the method for optimising a progressive ophthalmic lens the distribution of power and undesired astigmatism along an optical surface is optimised by minimising the function: wherein w1i and w2i are 0 or positive, and wherein the subscript i indicates different points of the optical surface. Summation additionally comprises a term from the group formed by and multiplications thereof, m being greater than or equal to 1, and w4mi, w5mi, w6mi and w7mi being greater than or equal to 0, wherein if any of the terms of the group formed by and multiplications thereof is less than 0, then same is substituted by the absolute value thereof, and wherein if m=2 and w42i=w52i, neither being 0, then summation additionally comprises at least one other term from said group.
The invention relates to a method for ordering spectacles, comprising the following steps: obtaining morphological data of the user's head; determining the optimum position of the lenses; determining the viable frames from the frames in a database of frames, and discarding the non-viable frames; calculating viable lenses for each viable frame and discarding the frames without viable lenses; the user selecting a viable frame from a database of viable spectacles (consisting of viable frames with viable lenses) and a lens from the lenses viable for said frame, and displaying of the user's face with the selected frame and lenses mounted in the use position; confirming a selection and generating the order.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Machines and machine-tools for the optical industry, in particular automatic bevellers for ophthalmic lenses, drilling machines to perforate lenses, polishing and grooving machines for lenses, ultra-sonic cleaning machines for lenses; 3D printers. Image scanners; Electronic and optical scanners; Image analyzers; Optical apparatus and instruments; Opticians' goods; Optical glass; Graduated glassware; Ophthalmic lenses; Corrective eyewear; Spectacles [optics]; Anti-glare glasses; Sunglasses; Goggles for sports; Spectacle frames, lenses and cases; Contact lenses; Containers for contact lenses; surveyors’ levels; Spectacle chains and cords; Microscopes; Data processing equipment (computers); Computer programs (software) for applications in the field of optics and ophthalmology; Downloadable electronic publications relating to optics and ophthalmology. Research, design and development of customised optical and ophthalmological goods; Scientific and technological services within the field of optics and opthalmology, and research and design relating thereto; Analysis and industrial research on optics and opthalmology; Calibration (measurement) and quality control; Material testing; Research and development of new goods (for others).
13.
Ophthalmic lens with a base of polymeric material and a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure coating
Ophthalmic lens including a base of polymeric material with a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure. An interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure can have intermediate layers with intermediate refraction indices, in which case a doublet of two adjacent layers that fulfill the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively.
B32B 15/04 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
B32B 17/06 - Produits stratifiés composés essentiellement d'une feuille de verre ou de fibres de verre, de scorie ou d'une substance similaire comprenant du verre comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
G02C 7/10 - Filtres, p.ex. pour faciliter l'adaptation des yeux à l'obscurité; Lunettes de soleil
A central area of a lens is defined with a central perimeter coinciding with a perimeter of a frame, a temporal line divides the central area into a nasal area and a temporal area, a useful perimeter is formed from the nasal area and the temporal line, a useful area is delimited by the useful perimeter, and a prescription is determined for the user. The temporal line is outside a cone with at least a 30° opening, an apex of which is in a center of rotation of a user's eye, which is an optical axis. A lens thickness is optimized according to the thickness of the perimeter of the nasal area. Subsequently a transition area is defined extending between the useful perimeter and an external perimeter of the lens.
Procedure for designing a progressive ophthalmic lens and corresponding lens. Procedure for designing a progressive ophthalmic lens, comprising a top area (7) between the far vision area (1) and the top edge of the lens and a bottom area (9) between the near vision area (3) and the bottom edge of the lens, which comprises an optimization stage wherein starting with a predesigned lens the lateral aberrations of the lens are redistributed around an outer area (15), defined according to a frame chosen by the future lens user, so that at least on one of the intersections between top (7) and bottom (9) areas and outer area (15), the aberrations adopt values higher than those they had in the predesigned lens.
Method for designing a progressive ophthalmic lens with a top area between a vision area and a top edge of the lens, and a bottom area between a near vision area and a bottom edge of the lens. Selecting a predesigned lens, lateral aberrations which are redistributed around an outer area, defined according to a frame chosen by the lens user, so that at least on one of intersections between top, bottom and outer areas, the aberrations adopt values higher than those in the predesigned lens.
Finished ophthalmic lens and corresponding methods. Finished ophthalmic lens having one concave face, one convex face; an outer perimeter with a thickness within a pre-established range; a central useful area that fulfills a pre-established ophthalmic prescription, which defines a machined surface, and which has a useful perimeter that coincides with a perimeter of a pre-established frame; and an outer transition area that joins the useful perimeter of the central useful area to the outer perimeter. A transition area includes a transition surface that extends from the machined surface and as far as the outer perimeter, is continuous and a derivative thereof is continuous on all points, including a joining line between the transition surface and the machined surface.
G02C 7/06 - Verres; Systèmes de verres multifocaux
B24B 1/00 - Procédés de meulage ou de polissage; Utilisation d'équipements auxiliaires en relation avec ces procédés
B24B 9/14 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavures; Accessoires 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 13/06 - 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 49/00 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meuler; Agencements de l'appareillage d'indication ou de mesure, p.ex. pour indiquer le début de l'opération de meulage
18.
FINISHED OPHTHALMIC LENS AND CORRESPONDING METHODS
Finished ophthalmic lens and corresponding methods. Finished ophthalmic lens that has a concave face and a convex face and an external perimeter (1) and that furthermore has: a thickness within a pre-established range; a central working area (3) that complies with a specific pre-established ophthalmic prescription, defined by a machined surface, and which has a working perimeter (5) that coincides with the perimeter of a specific pre-established frame; and an outer, transition area that connects the working perimeter (5) of the central working area (3) to the outer perimeter (1). The transition area (7) comprises a transition surface that extends as a continuation of the machined surface and extends as far as the outer perimeter (1) and is continuous, and the derivative thereof is continuous at all the points thereof, including the line connecting between the transition surface and the machined surface.
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 bavures; Accessoires 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 49/00 - Appareillage de mesure ou de calibrage pour la commande du mouvement d'avance de l'outil de meulage ou de la pièce à meuler; Agencements de l'appareillage d'indication ou de mesure, p.ex. pour indiquer le début de l'opération de meulage
The invention relates to a method and device for determining the visual behavior of a person. The inventive method comprises the following steps consisting in: recording the movement of the individual's head, recording the movement of his/her eyes, determining the relative orientation of the eye in relation to the head, and determining the amount of time for which the eye is maintained in each orientation. The aforementioned amount of time is determined by collecting the records of orientations in finite intervals and counting the number of records (frequency) in each interval. Said orientations are specified using angular co-ordinates for both the head and the eye. The data are detected and processed with the aid of a device comprising light emitters (51) which are fixed to the head, cameras (63) and a screen (611, 612) for attracting the individual's gaze. The results from the method are used in order to customize the design of a lens for spectacles.
