EP3938142A1 - Method for assisting a user in applying an adhesive label to the surface of an ophthalmic lens with an initial contour prior to an edge grinding operation, and device for implementing the method - Google Patents

Method for assisting a user in applying an adhesive label to the surface of an ophthalmic lens with an initial contour prior to an edge grinding operation, and device for implementing the method

Info

Publication number
EP3938142A1
EP3938142A1 EP20708123.3A EP20708123A EP3938142A1 EP 3938142 A1 EP3938142 A1 EP 3938142A1 EP 20708123 A EP20708123 A EP 20708123A EP 3938142 A1 EP3938142 A1 EP 3938142A1
Authority
EP
European Patent Office
Prior art keywords
ophthalmic lens
visual aid
adhesive sticker
lens
outline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20708123.3A
Other languages
German (de)
French (fr)
Other versions
EP3938142B1 (en
Inventor
Jean René AKBAL
Hugues AMEURLAIN
Nicolas JAMET
Laurence SCODELLARO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Publication of EP3938142A1 publication Critical patent/EP3938142A1/en
Application granted granted Critical
Publication of EP3938142B1 publication Critical patent/EP3938142B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/146—Accessories, e.g. lens mounting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • B24B47/225—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation for bevelling optical work, e.g. lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms

Definitions

  • the present invention relates to a method for assisting a user in
  • the present invention relates to the field of edging glasses or
  • lenses especially ophthalmic glasses or lenses.
  • An ophthalmic lens results from a succession of molding and / or surfacing / polishing operations which determine the geometry of the two convex and concave optical surfaces of said glass, then appropriate surface treatments.
  • edging which consists in machining the edge or periphery of the lens so as to conform it to the dimensions required to adapt the lens to a spectacle frame in which it is intended to take place.
  • Edging also called trimming, is generally carried out on a grinder comprising diamond grinding wheels which perform the machining as defined above.
  • the lens is held, during this operation, by locking members acting axially, relative to the optical axis of the lens.
  • a retaining means also called an acorn is positioned on the convex surface of the lens.
  • This glans is glued to the lens by means of a double-sided adhesive called a pad placed on the surface of the glans.
  • the lens thus equipped is positioned on one of the axial members of
  • the second axial blocking member then clamping the lens on its concave face via a stop, generally in
  • a adhesive sticker also called sticker or retaining pad, for example a simple adhesive, is arranged between the assembly formed by the glans and the pad on the one hand and the convex surface of the lens on the other hand.
  • This adhesive sticker is therefore different and not to be confused with the pad forming an adhesive surface of the glans itself.
  • the holding tassels are pre-equipped with such pads.
  • this adhesive sticker is usually affixed to the convex surface of the lens by hand and its optimal position should depend on the shape and position of the center of the finished ophthalmic lens, i.e. having the final contour to be mounted in a suitable frame, chosen by a final wearer.
  • the sticker is not located exactly enough at the glans blocking location, some areas of the pad may be in direct contact with the lens, leading to less robust retention of the lens in the retainers.
  • the present invention provides a simple, efficient and economical solution to this problem.
  • the invention relates to a method for assisting a user in the application of an adhesive sticker on one face of an ophthalmic lens with an initial contour before edging comprising:
  • the adhesive sticker (or retaining pad) can be any suitable adhesive sticker (or retaining pad).
  • the invention may further include one or more of the following aspects taken alone or in combination:
  • the method may further include determining within said
  • the visual aid has, for example, a shape making it possible to indicate an orientation and a centering of the adhesive sticker to be applied in particular in the case where the adhesive sticker has a non-circular outline.
  • the visual aid notably has a shape corresponding to the outline of the adhesive sticker to be affixed.
  • the visual aid indicates the orientation of the adhesive sticker to be affixed corresponding to the orientation of the blocking acorn during the overflow operation.
  • the step of forming a visual aid may include forming a visual aid image. It is therefore an immaterial, non-intrusive and non-contact visual aid which does not risk damaging the ophthalmic lens.
  • the method comprises for example the capture with a camera in real time of the images of the ophthalmic lens with its initial outline, maintained by the support and the display in real time of these images on a display screen by superimposing the visual aid on these images taken or by embedding the visual aid in these images taken.
  • a display of the final outline of the ophthalmic lens superimposed on said images can also be achieved.
  • forming a visual aid image comprises projecting an image of a visual aid onto the lens
  • ophthalmic in particular with a laser or image projector.
  • the invention also relates to a method for edging a lens
  • the invention also relates to a device for implementing a method as described above, comprising
  • processing unit configured to determine from geometric data of the final contour to be produced of the ophthalmic lens a
  • a visual aid forming unit controlled by the processing unit and configured to allow a user to apply the adhesive label to the ophthalmic lens with an initial contour before edging so that the adhesive label can be applied to inside the final outline.
  • the processing unit is for example configured to determine within the positioning of the final contour the theoretical position of a blocking acorn to block the ophthalmic lens during the edging operation, and the unit of Visual aid training is configured to form a visual aid centered on the position of a blocking acorn, and adapted to indicate that position.
  • the visual aid may have a shape corresponding to an outline of the adhesive sticker.
  • the visual aid training unit for example, has a form
  • the device comprises for example a camera configured to take real-time images of the ophthalmic lens with its initial outline maintained by the support and the visual aid training unit comprises a viewing screen configured for display. images in real time by superimposing the visual aid on them or by embedding the visual aid in these images taken.
  • the visual aid training unit is notably configured for a display of the zone corresponding to the position of the final contour of the ophthalmic lens superimposed on said images.
  • FIG.1 is an example of an ophthalmic lens on which a sticker
  • FIG.2 is a general perspective view of an exemplary embodiment of a centering-blocker device for the implementation of a method according to the invention
  • FIG.3 is a simplified optical diagram of the device of Figure 2;
  • FIG.4 is a block diagram of an example of the method according to the invention
  • FIG.5 is an example of a first screen displayed by the centering - blocking device
  • FIG.6 is an example of a second screen displayed by the centering device - blocker
  • FIG.7 is an example of a third screen displayed by the centralizer - blocker device.
  • Figure 1 is shown the result of the assembly to be performed in particular by an operator before an overflow operation using the method and the device according to the invention.
  • Figure 1 is shown an ophthalmic lens 103 with its initial outline 400. On this lens
  • ophthalmic has been affixed, on its convex surface 401, an adhesive sticker 150 as well as a blocking acorn 152.
  • FIG. 2 an embodiment of a centering-blocker device 100 according to the invention to assist a user in the application of an adhesive sticker 150 on one side. of an ophthalmic lens 103 before the edging operation.
  • the adhesive sticker 150 is for example double-sided self-adhesive, for example adhesives of the Rikipad Z-6018 type distributed by VIGteQnos ⁇ .
  • This centering-blocking device 100 comprises in particular a control panel.
  • ophthalmic lens 103 On which is disposed a centering mechanism 102 of an ophthalmic lens 103. It may be a unifocal, bifocal, trifocal or lens. also an ophthalmic lens with progressive addition of power, also commonly called a progressive lens.
  • the present case it is an ophthalmic lens before trimming or edging with a circular initial contour 400, for example with a diameter of 80mm.
  • the ophthalmic lens 103 may have undergone one or more
  • the ophthalmic lenses more particularly concerned by the present invention are glasses which comprise a hydrophobic and / or oleophobic surface coating and preferably glasses comprising both a hydrophobic and / or oleophobic surface coating deposited on an anti- mono or multilayer reflections, preferably on the two optical faces of said ophthalmic lens.
  • hydrophobic and / or oleophobic coatings are generally applied to glasses comprising an anti-reflective coating, in particular in mineral material, in order to reduce their marked tendency to soiling, for example vis-à-vis glasses. fatty deposits.
  • oleophobes are obtained by applying, to the surface of the anti-reflective coating, compounds which reduce the surface energy of the glass, which generally implies that the direct application of a blocking gland on the ophthalmic lens for the edging does not allow a sufficient maintenance.
  • the purpose of the adhesive sticker 150 is in particular to raise the surface energy perceived by the blocking acorn temporarily during edging, thus allowing effective maintenance during an edging or trimming operation.
  • the adhesive sticker 150 having a contact surface with the ophthalmic lens 103 much larger than the blocking glans 152, for its part has a sliding adhesion with the surface of the lens 103 greater than that possible for the glans of blocking 152, and in particular increased grip during the application of a tangential force such as than that applied during overflow.
  • the adhesive sticker 150 generally has a lower tear-off adhesion than that of the blocking glans pad 152, in order to be able to be removed from the surface of the ophthalmic lens 103 following the edging.
  • the centering-blocker device 100 further comprises a
  • the centering mechanism 102 of the work desk 101 comprises here for example a set of three jaws 114 with concentric clamping each carried by an arm 115 pivoting around an axis (not visible in FIG. 2) fixed with respect to the work desk 101.
  • the arms are arranged so that their joint rotation about their respective axis allows the three jaws 114 to come together.
  • the clamping of the jaws 114 is controlled by a motor 117 whose axis is integral with a pinion 118 meshing with a ring 119 adapted to drive the arms 115 in rotation about their axis.
  • the arms 115 in fact each comprise a semi-circular toothed portion (not shown) meshing with the outer periphery of the ring 119.
  • An incremental encoder for example a rotary encoder, allows the motor 117 to know the position of the crown 119.
  • a support plate 121 adapted to allow light to pass.
  • the centering-blocker device 100 comprises a positioning arm 106, preferably automated, connected to the frame 104, and adapted to take using pliers for example an acorn blocking 152 disposed on a receptacle 107 and to come and deposit it at a positioning arm 106, preferably automated, connected to the frame 104, and adapted to take using pliers for example an acorn blocking 152 disposed on a receptacle 107 and to come and deposit it at a
  • the centering-blocker device 100 is configured to detect the position of a centering mark and / or of the axis of the lens.
  • centering-blocker 101 advantageously comprises:
  • the support is constituted here for example by a support plate 121
  • the illumination means comprise in
  • a light source S which emits a divergent light beam 1 in the direction of a deflection system comprising a mirror 126 inclined at 45 ° and a converging lens 123 adapted to form a luminous flux 2 with parallel rays in the direction of the ophthalmic lens 103 deposited on the support plate 121 with its front face, provided with the centering and / or axis mark (s), facing said converging lens 123.
  • the acquisition and analysis means here include a camera
  • digital C image processing means 200 configured to process the signal obtained at the output of digital camera C and means for displaying the processed signal constituted in particular by the display screen 105.
  • acquisition means and d The analysis comprises between the support plate 121 and the digital camera C an optical system for returning the light beam transmitted by and around the ophthalmic lens 103 comprising in particular a frosted plate 122 forming a screen and a mirror 125 inclined at 45 °.
  • the digital camera C collects, via the optical angular return operated by the inclined mirror 125, the images or shadows projected on the frosted screen 122.
  • said support for the ophthalmic lens, said illumination means and said acquisition and analysis means are fixed with respect to one another.
  • FIG. 3 it comprises a single optical path between said illumination means and said acquisition and analysis means, which has the advantage of reducing the size and costs. manufacturing of the device and especially to obtain a lasting precision of measurement.
  • the centering-blocker device 100 described above allows the implementation of a method to assist a user in the application of an adhesive sticker 150 on one face of an ophthalmic lens 103 with its initial contour 400 , in particular circular, before overflow.
  • This process comprises the following steps (see figure 4):
  • the ophthalmic lens 103 is fixed with its initial circular outline 400 in a support formed more particularly by the
  • the ophthalmic lens 103 is illuminated by rays of light parallel 2 and the initial outline 400 of the ophthalmic lens 103 is visible on the frosted screen 122 and is imaged by the camera C.
  • the acquired image (s) is / are transmitted on the display screen 105 by the image processing means 200. More specifically, the image processing means 200 can detect the initial contour of the ophthalmic lens 103 and replace, for example, in the images transmitted to the display screen 105 all the pixels outside the initial contour detected by pixels of a predefined color such as black, for example.
  • a projection or positioning of the final contour 402 inside the initial contour 400 of the ophthalmic lens 103 is determined from geometric data of the final contour 402 to be produced of the ophthalmic lens 103.
  • the geometric data of the final contour 402, or frame data are obtained either from a database or, directly or indirectly, from the measurement of a contour of a rim of the spectacle frame or from the measurement of 'an outline of a presentation spectacle lens initially mounted in said frame. Furthermore, the determination of the projection or of the positioning of the final contour 402 inside the initial contour 400 of the ophthalmic lens 103 is obtained either from a database or from a file, having been determined in a previous step. , either by calculation, by means of a
  • the wearing data here expresses quantities measured under wearing conditions, real or virtual, of the frame by the wearer, or end user.
  • the wearing data are for example linked to the position of the pupil of the wearer relative to the position of the outline of the ophthalmic lens in the wearing condition. These are for example the so-called height, pupillary distance (PD) data, boxing data.
  • the lens centering data here expresses the data corresponding to the position of the wearer's pupil with respect to the geometry of the optical surfaces of the spectacle lens. These centering data are generally associated with an optical center of the ophthalmic lens, or a fitting mark, a near vision zone, a far vision zone, etc.
  • These assembly data can come from a database or a file or be extracted by means of the centering machine, by identifying, automatically or manually, either micro circles or ink markings on the ophthalmic lens 103 to protrude, such as a mounting cross or an optical center marker ... etc.
  • step 304 a visual aid is created for the user.
  • the images are therefore displayed for example on the viewing screen 105 by superimposing or overlaying thereon these images taken by the camera C the final contour 402 of the ophthalmic lens 103 as a visual aid.
  • the step of forming a visual aid therefore comprises forming a visual aid image which can be displayed on the screen or, according to another embodiment, be projected as an image by an image projector or a laser on the ophthalmic lens 103.
  • FIG. 5 shows an example of a display of a viewing screen 105 preliminary to the step of using the visual aid of the invention.
  • the processing means 200 have displayed a photo taken by the camera C and replaced the pixels outside the initial outline 400 with black pixels. Within the initial contour 400, the processing means 200 have projected a final contour 402 of the ophthalmic lens 103 to be produced.
  • the user is able to verify, for example, that the positioning of the final contour of the ophthalmic lens, of the centering point, corresponding to a point of the ophthalmic lens intended to face the pupil of the wearer in the wearing condition of the ophthalmic lens, which were determined by the machine, match the image of the ophthalmic lens and in particular any mounting marks visible on the ophthalmic lens. Furthermore, it is possible to verify that the positioning of the final contour of the ophthalmic lens is indeed included in the initial contour of the ophthalmic lens.
  • the centering point corresponds to the white cross visible in the photo.
  • the operator or an optician
  • manipulating the centralizer and blocker according to the invention can activate the visual aid function by selecting a corresponding button on the display screen.
  • the visual aid function can be systematic or
  • the display screen then changes to that of FIG. 6. On this screen are then continuously displayed images taken by the camera, in real time, without necessarily the processing means 200 artificially removing the lens support means. ophthalmic.
  • the processing means 200 determine inside the projection or the positioning of the final contour 402 the theoretical position of a blocking acorn 152 which will be used to block the ophthalmic lens 103 before edging and determines the position of a visual aid indicating to the user an area corresponding to the desired position for pasting the sticker.
  • the adhesive sticker 150 has a non-circular elliptical outline with a central hole
  • the processing means 200 shows on the display screen a visual aid in the form of a sticker outline 406 and the hole central 404 embedded in the image which indicates inside the final outline 402 the orientation of the adhesive sticker 150 to be affixed.
  • the visual aid is “in a way” immaterial.
  • This overlay can be done by replacing certain displayed pixels by a determined color, for example red or black.
  • the visual aid comprises an erasable or temporary marking device on the ophthalmic lens 103 with its initial outline 400 which indicates the final outline 402 and / or an area 404
  • the visual aid comprises indicators for centering the adhesive sticker 150 and indicators for the orientation of said adhesive sticker 150.
  • the elliptical outline is both a indicator of the orientation of the adhesive sticker 150, but also an indicator for optimally positioning the center of the adhesive sticker.
  • This second aspect is reinforced by the presence of a 404 representation of the hole in the middle of the adhesive sticker 150.
  • the visual aid can include a series of markers allowing the adhesive sticker 150 to be correctly oriented in time according to its main axis or long axis (by the major axis of the ellipse if the sticker is elliptical), then another series of marks allowing in a second time to position the center of the sticker to the desired position.
  • this may be the formation of one or more lines 411 parallel to a long axis of various sizes making it possible to deduce a center 413 as shown by way of illustration.
  • the final outline 402 of the ophthalmic lens is displayed during training of the visual aid, for example by display on a viewing screen.
  • the visual aid is formed or displayed on its own, without the presence of the final outline of the ophthalmic lens.
  • the present invention makes it possible to affix at the end, for example by an operator and by marouflage, in a precise manner an adhesive sticker 150 on an ophthalmic lens 103 before edging to allow effective maintenance during trimming operations. .
  • the acorn can be attached to the adhesive sticker
  • the ophthalmic lens present on the ophthalmic lens and the latter can be easily cut out or protruded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Eyeglasses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The invention relates to a method for assisting a user in taping an adhesive label (150) to a surface of an ophthalmic lens (103) with an initial contour (400) prior to edge grinding, the method comprising: - holding of the ophthalmic lens (103) with its initial contour (400) by a holder, - determining, from geometric data for the final contour of the ophthalmic lens (103) to be produced, of a position of the final contour inside the initial contour (400) of the ophthalmic lens (103), - creating a visual aid for the user enabling the latter to apply the adhesive label (150) to the ophthalmic lens (103) with its initial contour (400) prior to edge grinding, such that the adhesive label (150) can be applied inside the final contour.

Description

Description Description
Titre de l'invention : Procédé pour assister un utilisateur à l’application d’une vignette adhésive sur une face d’une lentille ophtalmique avec un contour initial avant une opération de débordage et dispositif de mise en œuvre du procédé Title of the invention: Method for assisting a user in the application of an adhesive sticker on one side of an ophthalmic lens with an initial outline before an edging operation and device for implementing the method
[1 ] [DOMAINE TECHNIQUE [1] [TECHNICAL FIELD
[2] La présente invention concerne un procédé pour assister un utilisateur à [2] The present invention relates to a method for assisting a user in
l’application d’une vignette adhésive sur une face d’une lentille ophtalmique avec un contour initial avant une opération de débordage et un dispositif de mise en oeuvre du procédé. the application of an adhesive sticker on one face of an ophthalmic lens with an initial contour before an edging operation and a device for carrying out the method.
[3] ETAT DE L'ART [3] STATE OF THE ART
[4] La présente invention se rapporte au domaine du débordage des verres ou [4] The present invention relates to the field of edging glasses or
lentilles, tout particulièrement des verres ou lentilles ophtalmiques. lenses, especially ophthalmic glasses or lenses.
[5] Une lentille ophtalmique résulte d'une succession d'opérations de moulage et/ou de surfaçage / polissage qui déterminent la géométrie des deux surfaces optiques convexe et concave dudit verre, puis des traitements de surface appropriés. [5] An ophthalmic lens results from a succession of molding and / or surfacing / polishing operations which determine the geometry of the two convex and concave optical surfaces of said glass, then appropriate surface treatments.
[6] La dernière étape de finition d'une lentille ophtalmique est une opération de [6] The last stage of finishing an ophthalmic lens is an operation of
débordage qui consiste à usiner la tranche ou périphérie de la lentille de façon à la conformer aux dimensions requises pour adapter la lentille à une monture de lunette dans laquelle il est destiné à prendre place. edging which consists in machining the edge or periphery of the lens so as to conform it to the dimensions required to adapt the lens to a spectacle frame in which it is intended to take place.
[7] Le débordage, également appelé détourage, est réalisé généralement sur une meuleuse comprenant des meules diamantées qui effectuent l'usinage tel que défini ci-dessus. [7] Edging, also called trimming, is generally carried out on a grinder comprising diamond grinding wheels which perform the machining as defined above.
[8] A cet effet, la lentille est maintenue, lors de cette opération, par des organes de blocage intervenant axialement, par rapport à l’axe optique de la lentille. [8] For this purpose, the lens is held, during this operation, by locking members acting axially, relative to the optical axis of the lens.
[9] Le mouvement relatif de la lentille par rapport à la meule est contrôlé, [9] The relative movement of the lens with respect to the grinding wheel is controlled,
généralement numériquement, afin de réaliser la forme souhaitée de façon très précise. [10] On comprend donc qu’il est tout à fait impératif que la lentille soit fermement maintenue lors de ce mouvement. En effet, tout défaut de blocage peut se traduire en un défaut d’usinage et du contour final, ce qui peut avoir pour conséquence que la lentille usinée ne peut pas être montée dans la monture de lunette à laquelle elle est dédiée. usually digitally, in order to achieve the desired shape very precisely. [10] It is therefore understood that it is absolutely imperative that the lens be firmly held during this movement. Indeed, any blocking defect can result in a machining defect and of the final contour, which can result in the machined lens cannot be mounted in the spectacle frame to which it is dedicated.
[11 ] Pour cela, avant l'opération de débordage, on effectue une opération de [11] For this, before the overflow operation, we perform an operation of
glantage de la lentille, c'est à dire que l'on vient positionner sur la surface convexe de la lentille un moyen de maintien également appelé un gland. Ce gland est collé sur la lentille par l’intermédiaire d’un adhésif double face appelé pad disposé sur la surface du gland. sliding of the lens, that is to say that a retaining means also called an acorn is positioned on the convex surface of the lens. This glans is glued to the lens by means of a double-sided adhesive called a pad placed on the surface of the glans.
[12] La lentille ainsi équipée est positionnée sur l'un des organes axiaux de [12] The lens thus equipped is positioned on one of the axial members of
blocage précités, le second organe de blocage axial venant alors serrer la lentille sur sa face concave par l'intermédiaire d'une butée, généralement en aforementioned blocking, the second axial blocking member then clamping the lens on its concave face via a stop, generally in
élastomère. elastomer.
[13] Lors de l'usinage, un effort de couple tangentiel est généré sur la lentille, ce qui peut engendrer une rotation de la lentille par rapport au gland si le dispositif de maintien du verre n'est pas assez efficace. Ce phénomène est à éviter car la bonne disposition axiale de la lentille (bon axage) dans la monture est essentielle pour les lentilles traitant l’astigmatisme et / ou la presbytie. [13] During machining, a tangential torque force is generated on the lens, which can cause the lens to rotate relative to the acorn if the lens holder is not efficient enough. This phenomenon should be avoided because the correct axial arrangement of the lens (correct alignment) in the frame is essential for lenses treating astigmatism and / or presbyopia.
[14] Pour éviter ce phénomène de désaxage sur les lentilles glissantes, et en particulier sur les lentilles comportant en surface un traitement de surface (topcoat en anglais pour l’homme de l’art) anti-salissure, généralement hydrophobe ou oléophobe, une vignette adhésive également appelé sticker ou patin de maintien, par exemple un adhésif simple, est disposée entre l’ensemble formé par le gland et le pad d’une part et la surface convexe de la lentille d’autre part. Cette vignette adhésive est donc différente et à ne pas confondre avec le pad formant une surface adhésive du gland lui-même. Généralement les glands de maintien son pré-équipés de tels pads. [14] To avoid this phenomenon of misalignment on sliding lenses, and in particular on lenses comprising on the surface a surface treatment (topcoat in English for those skilled in the art) anti-soiling, generally hydrophobic or oleophobic, a adhesive sticker also called sticker or retaining pad, for example a simple adhesive, is arranged between the assembly formed by the glans and the pad on the one hand and the convex surface of the lens on the other hand. This adhesive sticker is therefore different and not to be confused with the pad forming an adhesive surface of the glans itself. Usually the holding tassels are pre-equipped with such pads.
[15] Cependant, cette vignette adhésive est généralement apposée sur la surface convexe de la lentille à la main et sa position optimale doit dépendre de la forme et de la position du centre de la lentille ophtalmique finie, c’est-à-dire ayant le contour final pour être montée dans une monture adaptée, choisie par un porteur final. [15] However, this adhesive sticker is usually affixed to the convex surface of the lens by hand and its optimal position should depend on the shape and position of the center of the finished ophthalmic lens, i.e. having the final contour to be mounted in a suitable frame, chosen by a final wearer.
[16] Or, un mauvais positionnement de la vignette adhésive peut avoir des [16] However, a bad positioning of the adhesive sticker can have
conséquences négatives : Negative consequences :
- Le collage de la vignette adhésive au mauvais endroit peut faire que la vignette adhésive sorte de la forme finale après taillage et peut avoir pour conséquence : - Sticking the adhesive sticker in the wrong place can cause the adhesive sticker to come out of the final shape after cutting and may have the following consequences:
- Un contact de la vignette adhésive avec les outils de débordage pouvant engendrer une usure ou une casse des dits outils, en particulier lors de l’usage d’une fraise ou d’un foret. - Contact of the adhesive sticker with the edging tools which may cause wear or breakage of said tools, in particular when using a milling cutter or a drill.
- Un décollement de la vignette adhésive durant le débordage, ou une non découpe de la vignette adhésive dépassant du contour final, entraînant une infiltration d’eau sous la vignette adhésive pendant le débordage, ce qui peut engendrer une perte totale d’adhésion de la vignette. - A detachment of the adhesive sticker during edging, or not cutting the adhesive sticker protruding from the final contour, causing water to infiltrate under the adhesive sticker during edging, which can cause a total loss of adhesion of the thumbnail.
- Si la vignette n’est de plus pas située assez exactement à l’emplacement de blocage du gland, certaines zones du pad peuvent être en contact direct avec la lentille, conduisant à un maintien moins robuste de la lentille dans les organes de maintien. - If the sticker is not located exactly enough at the glans blocking location, some areas of the pad may be in direct contact with the lens, leading to less robust retention of the lens in the retainers.
[17] Or, cette opération de collage de la vignette adhésive est difficile pour un opérateur qui ne connaît pas à priori la forme finale de la lentille ophtalmique et donc la position où le gland devrait préférentiellement bloquer la lentille avant l’opération de débordage et donc la position, voir l’orientation dans le cas d’une vignette non-circulaire. [17] However, this gluing operation of the adhesive sticker is difficult for an operator who does not know a priori the final shape of the ophthalmic lens and therefore the position where the glans should preferably block the lens before the edging operation and therefore the position, see the orientation in the case of a non-circular sticker.
[18] La présente invention propose une solution simple, efficace et économique à ce problème. [18] The present invention provides a simple, efficient and economical solution to this problem.
[19] EXPOSE DE L'INVENTION [19] DISCLOSURE OF THE INVENTION
[20] A cet effet, l’invention a pour objet un procédé pour assister un utilisateur à l’application d’une vignette adhésive sur une face d’une lentille ophtalmique avec un contour initial avant débordage comprenant : [20] To this end, the invention relates to a method for assisting a user in the application of an adhesive sticker on one face of an ophthalmic lens with an initial contour before edging comprising:
- le maintien de la lentille ophtalmique avec son contour initial par un support, - the maintenance of the ophthalmic lens with its initial outline by a support,
- la détermination à partir de données géométriques du contour final à réaliser de la lentille ophtalmique d’un positionnement du contour final à l’intérieur du contour initial de la lentille ophtalmique, - la formation d’une aide visuelle pour l’utilisateur lui permettant d’appliquer la vignette adhésive sur la lentille ophtalmique avec son contour initial avant débordage de sorte que la vignette adhésive puisse être appliquée à l’intérieur du contour final. - determining from geometric data of the final contour to be produced of the ophthalmic lens of a positioning of the final contour inside the initial contour of the ophthalmic lens, the formation of a visual aid for the user allowing him to apply the adhesive sticker on the ophthalmic lens with its initial contour before edging so that the adhesive sticker can be applied inside the final contour.
[21 ] Grâce à l’invention, la vignette adhésive (ou patin de maintien) peut être [21] Thanks to the invention, the adhesive sticker (or retaining pad) can be
positionnée de façon précise sans risque d’entrer en contact avec les outils de débordage lors de la taille de la lentille pour obtenir sa forme finale. precisely positioned without the risk of contacting the edging tools while trimming the lens to its final shape.
[22] L’invention peut en outre comprendre un ou plusieurs des aspects suivants pris seuls ou en combinaison : [22] The invention may further include one or more of the following aspects taken alone or in combination:
[23] Le procédé peut comprendre en plus la détermination à l’intérieur dudit [23] The method may further include determining within said
positionnement du contour final d’une position théorique du gland de blocage pour bloquer la lentille ophtalmique avant débordage, et l’aide visuelle positioning of the final contour of a theoretical position of the locking glans to block the ophthalmic lens before edging, and the visual aid
correspond à une zone centrée sur la position théorique du gland de blocage lors de l’opération de débordage et adaptée pour indiquer cette position. corresponds to a zone centered on the theoretical position of the blocking acorn during the overflow operation and adapted to indicate this position.
[24] L’aide visuelle possède par exemple une forme permettant d’indiquer une orientation et un centrage de la vignette adhésive à appliquer en particulier au cas où la vignette adhésive possède un contour non circulaire. [24] The visual aid has, for example, a shape making it possible to indicate an orientation and a centering of the adhesive sticker to be applied in particular in the case where the adhesive sticker has a non-circular outline.
[25] L’aide visuelle possède notamment une forme correspondant au contour de la vignette adhésive à apposer. [25] The visual aid notably has a shape corresponding to the outline of the adhesive sticker to be affixed.
[26] Dans le cas spécifique où la vignette adhésive possède par exemple un [26] In the specific case where the adhesive sticker has for example a
contour elliptique non circulaire, l’aide visuelle indique l’orientation de la vignette adhésive à apposer correspondant à l’orientation du gland de blocage lors de l’opération de débordage. non-circular elliptical contour, the visual aid indicates the orientation of the adhesive sticker to be affixed corresponding to the orientation of the blocking acorn during the overflow operation.
[27] Selon un exemple de réalisation, l’étape de formation d’une aide visuelle peut comprendre la formation d’une image d’aide visuelle. Il s’agit donc d’une aide visuelle immatérielle, non intrusif et sans contact qui ne risque pas d’abîmer la lentille ophtalmique. [27] According to an exemplary embodiment, the step of forming a visual aid may include forming a visual aid image. It is therefore an immaterial, non-intrusive and non-contact visual aid which does not risk damaging the ophthalmic lens.
[28] Le procédé comprend par exemple la capture avec une caméra en temps réel des images de la lentille ophtalmique avec son contour initial, maintenu par le support et l’affichage en temps réel de ces images sur un écran de visualisation en superposant à ces images prises l’aide visuelle ou en incrustant dans ces images prises l’aide visuelle.. [28] The method comprises for example the capture with a camera in real time of the images of the ophthalmic lens with its initial outline, maintained by the support and the display in real time of these images on a display screen by superimposing the visual aid on these images taken or by embedding the visual aid in these images taken.
[29] Un affichage du contour final de la lentille ophtalmique superposé aux dites images peut également être réalisé. [29] A display of the final outline of the ophthalmic lens superimposed on said images can also be achieved.
[30] Selon un autre mode de réalisation la formation d’une image d’aide visuelle comprend la projection d’une image d’une aide visuelle sur la lentille [30] According to another embodiment, forming a visual aid image comprises projecting an image of a visual aid onto the lens
ophtalmique, en particulier avec un laser ou un projecteur d’images. ophthalmic, in particular with a laser or image projector.
[31 ] L’invention concerne également un procédé de débordage d’une lentille [31] The invention also relates to a method for edging a lens
ophtalmique comprenant ophthalmic comprising
- la fourniture d’une lentille ophtalmique, - the supply of an ophthalmic lens,
- la fourniture d’un gland, - the supply of an acorn,
- la fourniture d’une vignette adhésive, - the supply of an adhesive sticker,
- la formation d’une aide visuelle pour assister un utilisateur à l’application d’une vignette adhésive sur une face d’une lentille ophtalmique avec un contour initial selon un procédé tel que décrit ci-dessus, comprenant de plus - forming a visual aid to assist a user in applying an adhesive sticker to one face of an ophthalmic lens with an initial contour according to a method as described above, further comprising
- le marouflage de la vignette adhésive sur la lentille ophtalmique avec son contour initial avant débordage sensiblement centrée et orientée en fonction de l’aide visuelle, - the masking of the adhesive sticker on the ophthalmic lens with its initial contour before edging substantially centered and oriented according to the visual aid,
- la fixation du gland sur la vignette adhésive, ainsi que - the fixation of the glans on the adhesive sticker, as well as
- le débordage de la lentille ophtalmique maintenue au moyen dudit gland dans une machine de détourage. the edging of the ophthalmic lens held by means of said acorn in a trimming machine.
[32] L’invention concerne aussi un dispositif de mise en oeuvre d’un procédé tel que décrit ci-dessus, comprenant [32] The invention also relates to a device for implementing a method as described above, comprising
- un support pour maintenir la lentille ophtalmique avec son contour initial, - a support to hold the ophthalmic lens with its initial outline,
- une unité de traitement configurée pour déterminer à partir de données géométriques du contour final à réaliser de la lentille ophtalmique un - a processing unit configured to determine from geometric data of the final contour to be produced of the ophthalmic lens a
positionnement du contour final à l’intérieur du contour initial de la lentille ophtalmique, positioning of the final contour inside the initial contour of the ophthalmic lens,
- une unité de formation d’une aide visuelle commandée par l’unité de traitement et configurée pour permettre à un utilisateur d’appliquer la vignette adhésive sur la lentille ophtalmique avec un contour initial avant débordage de sorte que la vignette adhésive puisse être appliquée à l’intérieur du contour final. [33] L’unité de traitement est par exemple configurée pour déterminer à l’intérieur du positionnement du contour final la position théorique d’un gland de blocage pour bloquer la lentille ophtalmique lors de l’opération de débordage, et l’unité de formation de l’aide visuelle est configurée pour former une aide visuelle centrée sur la position d’un gland de blocage, et adaptée pour indiquer cette position. - a visual aid forming unit controlled by the processing unit and configured to allow a user to apply the adhesive label to the ophthalmic lens with an initial contour before edging so that the adhesive label can be applied to inside the final outline. [33] The processing unit is for example configured to determine within the positioning of the final contour the theoretical position of a blocking acorn to block the ophthalmic lens during the edging operation, and the unit of Visual aid training is configured to form a visual aid centered on the position of a blocking acorn, and adapted to indicate that position.
[34] L’aide visuelle peut avoir une forme correspondant à un contour de la vignette adhésive. [34] The visual aid may have a shape corresponding to an outline of the adhesive sticker.
[35] L’unité de formation de l’aide visuelle possède par exemple une forme [35] The visual aid training unit, for example, has a form
configurée pour permettre d’indiquer une orientation et un centrage de la vignette adhésive à appliquer, au cas où la vignette adhésive posséderait un contour non circulaire. configured to allow to indicate an orientation and a centering of the adhesive sticker to be applied, in case the adhesive sticker has a non-circular outline.
[36] Le dispositif comprend par exemple une caméra configurée pour prendre en temps réel des images de la lentille ophtalmique avec son contour initial maintenu par le support et l’unité de formation de l’aide visuelle comprend un écran de visualisation configuré pour un affichage en temps réel des images en y superposant l’aide visuelle ou en incrustant dans ces images prises l’aide visuelle. [36] The device comprises for example a camera configured to take real-time images of the ophthalmic lens with its initial outline maintained by the support and the visual aid training unit comprises a viewing screen configured for display. images in real time by superimposing the visual aid on them or by embedding the visual aid in these images taken.
[37] L’unité de formation de l’aide visuelle est notamment configurée pour un affichage de la zone correspondant à la position du contour final de la lentille ophtalmique superposé aux dites images. [37] The visual aid training unit is notably configured for a display of the zone corresponding to the position of the final contour of the ophthalmic lens superimposed on said images.
[38] D'autres caractéristiques et avantages de l'invention ressortiront de la [38] Other characteristics and advantages of the invention will emerge from the
description suivante, donnée à titre d'exemple et sans caractère limitatif, en regard des dessins annexés sur lesquels : following description, given by way of example and without limitation, with reference to the appended drawings in which:
[39] [Fig.1 ] est un exemple d’une lentille ophtalmique sur lequel une vignette [39] [Fig.1] is an example of an ophthalmic lens on which a sticker
adhésive a été déposée avec un gland de blocage. adhesive was filed with a blocking tassel.
[40] [Fig.2] est une vue générale en perspective d'un exemple de réalisation d’un dispositif centreur- bloqueur pour la mise ne œuvre d’un procédé selon l'invention [40] [Fig.2] is a general perspective view of an exemplary embodiment of a centering-blocker device for the implementation of a method according to the invention
[41 ] [Fig.3] est un schéma optique simplifié du dispositif de la figure 2 ; [41] [Fig.3] is a simplified optical diagram of the device of Figure 2;
[42] [Fig.4] est un schéma synoptique d’un exemple du procédé selon l’invention, [43] [Fig.5] est un exemple d’un premier écran affiché par le dispositif centreur - bloqueur ; [42] [Fig.4] is a block diagram of an example of the method according to the invention, [43] [Fig.5] is an example of a first screen displayed by the centering - blocking device;
[44] [Fig.6] est un exemple d’un second écran affiché par le dispositif centreur - bloqueur ; [44] [Fig.6] is an example of a second screen displayed by the centering device - blocker;
[45] [Fig.7] est un exemple d’un troisième écran affiché par le dispositif centreur - bloqueur. [45] [Fig.7] is an example of a third screen displayed by the centralizer - blocker device.
[46] DESCRIPTION DETAILLEE [46] DETAILED DESCRIPTION
[47] Sur toutes les figures, les éléments ayant des fonctions identiques portent les mêmes numéros de référence. [47] In all the figures, the elements having identical functions bear the same reference numbers.
[48] Les réalisations suivantes sont des exemples. Bien que la description se [48] The following realizations are examples. Although the description is
réfère à un ou plusieurs modes de réalisation, ceci ne signifie pas refers to one or more embodiments, this does not mean
nécessairement que chaque référence concerne le même mode de réalisation, ou que les caractéristiques s'appliquent seulement à un seul mode de réalisation. De simples caractéristiques de différents modes de réalisation peuvent également être combinées ou interchangées pour fournir d'autres réalisations. necessarily that each reference relates to the same embodiment, or that the characteristics apply only to a single embodiment. Simple features of different embodiments can also be combined or interchanged to provide other embodiments.
[49] Sur la figure 1 est représenté le résultat du montage devant être réalisé en particulier par un opérateur avant une opération de débordage à l’aide du procédé et du dispositif selon l’invention. Sur la figure 1 est représentée une lentille ophtalmique 103 avec son contour initial 400. Sur cette lentille [49] In Figure 1 is shown the result of the assembly to be performed in particular by an operator before an overflow operation using the method and the device according to the invention. In Figure 1 is shown an ophthalmic lens 103 with its initial outline 400. On this lens
ophtalmique a été apposée, sur sa surface convexe 401 , une vignette adhésive 150 ainsi qu’un gland de blocage 152. ophthalmic has been affixed, on its convex surface 401, an adhesive sticker 150 as well as a blocking acorn 152.
[50] Pour y parvenir, on a représenté sur la figure 2 schématiquement un mode de réalisation d'un dispositif centreur-bloqueur 100 selon l'invention permettant d’assister un utilisateur à l’application d’une vignette adhésive 150 sur une face d’une lentille ophtalmique 103 avant l’opération de débordage. [50] To achieve this, there is shown schematically in Figure 2 an embodiment of a centering-blocker device 100 according to the invention to assist a user in the application of an adhesive sticker 150 on one side. of an ophthalmic lens 103 before the edging operation.
[51 ] On peut préciser que la vignette adhésive 150 est par exemple autocollante double face, par exemple des adhésifs de type Rikipad Z-6018 distribués par VIGteQnos ©. [51] It may be specified that the adhesive sticker 150 is for example double-sided self-adhesive, for example adhesives of the Rikipad Z-6018 type distributed by VIGteQnos ©.
[52] Ce dispositif centreur-bloqueur 100 comporte en particulier un pupitre de [52] This centering-blocking device 100 comprises in particular a control panel.
travail 101 sur lequel est disposé un mécanisme de centrage 102 d'une lentille ophtalmique 103. Il peut s'agir d'une lentille unifocale, bifocale, trifocale ou encore d'une lentille ophtalmique à addition progressive de puissance, aussi communément appelée lentille progressive. work 101 on which is disposed a centering mechanism 102 of an ophthalmic lens 103. It may be a unifocal, bifocal, trifocal or lens. also an ophthalmic lens with progressive addition of power, also commonly called a progressive lens.
[53] Dans la présente demande, les termes " verre " ou lentille ophtalmique [53] In the present application, the terms "glass" or ophthalmic lens
désignent un substrat en verre organique ou minéral, traité ou non, selon qu'il comporte un ou plusieurs revêtements de nature diverse ou qu'il reste nu. denote an organic or inorganic glass substrate, treated or not, depending on whether it comprises one or more coatings of various kinds or whether it remains bare.
[54] Dans le cas présent, il s’agit d’une lentille ophtalmique avant détourage ou débordage avec un contour initial circulaire 400, par exemple avec un diamètre de 80mm. La lentille ophtalmique 103 peut avoir subie un ou plusieurs [54] In the present case, it is an ophthalmic lens before trimming or edging with a circular initial contour 400, for example with a diameter of 80mm. The ophthalmic lens 103 may have undergone one or more
traitements de surface, surface treatments,
[55] Les lentilles ophtalmiques plus particulièrement concernées par la présente invention sont des verres qui comportent un revêtement de surface hydrophobe et/ou oléophobe et préférentiellement des verres comportant à la fois un revêtement de surface hydrophobe et/ou oléophobe déposé sur un revêtement anti-reflets mono ou multicouche, préférentiellement sur les deux faces optiques desdites lentille ophtalmique. [55] The ophthalmic lenses more particularly concerned by the present invention are glasses which comprise a hydrophobic and / or oleophobic surface coating and preferably glasses comprising both a hydrophobic and / or oleophobic surface coating deposited on an anti- mono or multilayer reflections, preferably on the two optical faces of said ophthalmic lens.
[56] En effet, les revêtements hydrophobes et/ou oléophobes sont généralement appliqués sur des verres comportant un revêtement anti-reflets, en particulier en matière minérale, afin de réduire leur tendance marquée à la salissure, par exemple vis-à-vis des dépôts graisseux. [56] In fact, hydrophobic and / or oleophobic coatings are generally applied to glasses comprising an anti-reflective coating, in particular in mineral material, in order to reduce their marked tendency to soiling, for example vis-à-vis glasses. fatty deposits.
[57] Comme indiqué précédemment, les revêtements hydrophobes et/ou [57] As indicated above, hydrophobic and / or
oléophobes sont obtenus par application, sur la surface du revêtement anti reflets, de composés diminuant l'énergie de surface du verre ce qui implique généralement que l’application direct d’un gland de blocage sur la lentille ophtalmique pour le débordage ne permet pas un maintien suffisant. oleophobes are obtained by applying, to the surface of the anti-reflective coating, compounds which reduce the surface energy of the glass, which generally implies that the direct application of a blocking gland on the ophthalmic lens for the edging does not allow a sufficient maintenance.
[58] La vignette adhésive 150 a notamment pour fonction d’élever l'énergie de surface perçue par le gland de blocage de façon temporaire lors du débordage permettant ainsi un maintien efficace lors d’une opération de débordage ou de détourage. En particulier la vignette adhésive 150, ayant une surface de contact avec la lentille ophtalmique 103 beaucoup plus importante que le gland de blocage 152, a quant à elle une adhérence en glissement avec la surface de la lentille 103 plus importante que celle possible au gland de blocage 152, et en particulier une adhérence augmentée lors de l’application d’un effort tangentiel tel que celui appliqué lors du débordage. Par ailleurs, la vignette adhésive 150 a généralement une adhérence, en arrachement, plus faible que celle du pad du gland de blocage 152, afin de pouvoir être retirée de la surface de la lentille ophtalmique 103 suite au débordage. [58] The purpose of the adhesive sticker 150 is in particular to raise the surface energy perceived by the blocking acorn temporarily during edging, thus allowing effective maintenance during an edging or trimming operation. In particular the adhesive sticker 150, having a contact surface with the ophthalmic lens 103 much larger than the blocking glans 152, for its part has a sliding adhesion with the surface of the lens 103 greater than that possible for the glans of blocking 152, and in particular increased grip during the application of a tangential force such as than that applied during overflow. Furthermore, the adhesive sticker 150 generally has a lower tear-off adhesion than that of the blocking glans pad 152, in order to be able to be removed from the surface of the ophthalmic lens 103 following the edging.
[59] Le dispositif centreur-bloqueur 100 comporte en outre un écran de [59] The centering-blocker device 100 further comprises a
visualisation 105 fixé sur le bâti 104 de manière à être orienté pour être visible de l'utilisateur travaillant au pupitre de travail 101. display 105 fixed on the frame 104 so as to be oriented to be visible to the user working at the work desk 101.
[60] Le mécanisme de centrage 102 du pupitre de travail 101 comporte ici par exemple un jeu de trois mors 114 à serrage concentrique portés chacun par un bras 115 pivotant autour d'un axe (non visible sur la figure 2) fixe par rapport au pupitre de travail 101. Les bras sont agencés de manière que leur rotation conjointe autour de leur axe respectif permet le rapprochement des trois mors 114. [60] The centering mechanism 102 of the work desk 101 comprises here for example a set of three jaws 114 with concentric clamping each carried by an arm 115 pivoting around an axis (not visible in FIG. 2) fixed with respect to the work desk 101. The arms are arranged so that their joint rotation about their respective axis allows the three jaws 114 to come together.
[61 ] Le serrage des mors 114 est commandé par un moteur 117 dont l'axe est solidaire d'un pignon 118 engrenant sur une couronne 119 adaptée à entraîner les bras 115 en rotation autour de leur axe. [61] The clamping of the jaws 114 is controlled by a motor 117 whose axis is integral with a pinion 118 meshing with a ring 119 adapted to drive the arms 115 in rotation about their axis.
[62] Les bras 115 comportent en effet chacun une portion dentée semi- circulaire (non représentée) engrenant avec la périphérie externe de la couronne 119. [62] The arms 115 in fact each comprise a semi-circular toothed portion (not shown) meshing with the outer periphery of the ring 119.
[63] La rotation du pignon 118, sous l'action du moteur 117, entraîne ainsi en [63] The rotation of the pinion 118, under the action of the motor 117, thus drives in
rotation la couronne 119 pour provoquer le serrage ou le desserrage des mors 114, en fonction du sens dans lequel est entraînée la couronne 119. Un codeur incrémental, par exemple un codeur rotatif, permet au moteur 117 de connaître la position de la couronne 119. rotation of the crown 119 to cause the clamping or loosening of the jaws 114, depending on the direction in which the crown 119 is driven. An incremental encoder, for example a rotary encoder, allows the motor 117 to know the position of the crown 119.
[64] L'ensemble formé par les bras 115 portant les mors 114, et par la couronne [64] The assembly formed by the arms 115 carrying the jaws 114, and by the crown
119 est disposé au-dessus d'une plaque support 121 adaptée à laisser passer la lumière. 119 is arranged above a support plate 121 adapted to allow light to pass.
[65] Par ailleurs, comme le montre la figure 2, le dispositif centreur-bloqueur 100 comporte un bras de positionnement 106, préférentiellement automatisé, relié au bâti 104, et adapté à prendre à l'aide d'une pince par exemple un gland de blocage 152 disposé sur un réceptacle 107 et à venir le déposer à un [65] Furthermore, as shown in Figure 2, the centering-blocker device 100 comprises a positioning arm 106, preferably automated, connected to the frame 104, and adapted to take using pliers for example an acorn blocking 152 disposed on a receptacle 107 and to come and deposit it at a
emplacement déterminé par calcul sur la face avant de ladite lentille ophtalmique 103, et en particulier sur la face avant recouverte de la vignette adhésive 150 susmentionnée. location determined by calculation on the front face of said ophthalmic lens 103, and in particular on the front face covered with the aforementioned adhesive sticker 150.
[66] Dans cette optique, le dispositif centreur-bloqueur 100 est configuré pour détecter la position d'un repère de centrage et/ou d'axage de la lentille [66] With this in mind, the centering-blocker device 100 is configured to detect the position of a centering mark and / or of the axis of the lens.
ophtalmique 103. ophthalmic 103.
[67] Pour cela, comme le montre schématiquement la figure 3, le dispositif [67] For this, as shown schematically in Figure 3, the device
centreur-bloqueur 101 comprend avantageusement : centering-blocker 101 advantageously comprises:
- un support de la lentille ophtalmique 103, - a support for the ophthalmic lens 103,
- de part et d'autre dudit support, d'une part, des moyens d'éclairement de la lentille ophtalmique 103 installée sur ledit moyen d'accueil et, d'autre part - on either side of said support, on the one hand, means for illuminating the ophthalmic lens 103 installed on said receiving means and, on the other hand
- des moyens d'acquisition et d'analyse de la lumière transmise par ladite lentille ophtalmique 103. - Acquisition and analysis means of the light transmitted by said ophthalmic lens 103.
[68] Le support est constitué ici par exemple par une plaque support 121 [68] The support is constituted here for example by a support plate 121
transparente à la lumière et/ou par le mécanisme de centrage 102. transparent to light and / or by the centering mechanism 102.
[69] Selon l'exemple représenté, les moyens d'éclairement comprennent en [69] According to the example shown, the illumination means comprise in
particulier une source de lumière S qui émet un faisceau lumineux divergent 1 en direction d'un système de renvoi comportant un miroir 126 incliné à 45° et une lentille convergente 123 adaptée à former un flux lumineux 2 à rayons parallèles en direction de la lentille ophtalmique 103 déposée sur la plaque support 121 avec sa face avant, pourvue du ou des repères de centrage et/ou d'axage, tournée vers ladite lentille convergente 123. particular a light source S which emits a divergent light beam 1 in the direction of a deflection system comprising a mirror 126 inclined at 45 ° and a converging lens 123 adapted to form a luminous flux 2 with parallel rays in the direction of the ophthalmic lens 103 deposited on the support plate 121 with its front face, provided with the centering and / or axis mark (s), facing said converging lens 123.
[70] Les moyens d'acquisition et d'analyse comprennent ici une caméra [70] The acquisition and analysis means here include a camera
numérique C, des moyens de traitement d'image 200 configurés pour traiter le signal obtenu en sortie de la caméra numérique C et des moyens d'affichage du signal traité constitué notamment par l'écran de visualisation 105. Lesdits moyens d'acquisition et d'analyse comprennent entre la plaque support 121 et la caméra numérique C un système optique de renvoi du faisceau lumineux transmis par et autour de la lentille ophtalmique 103 comportant notamment une plaque dépolie 122 formant écran et un miroir 125 incliné à 45°. La caméra numérique C recueille, via le renvoi angulaire optique opéré par le miroir incliné 125, les images ou ombres projetées sur l’écran dépoli 122. [71 ] Avantageusement, dans le dispositif centreur-bloqueur 100, ledit support de la lentille ophtalmique, lesdits moyens d'éclairement et lesdits moyens d'acquisition et d'analyse sont fixes les uns par rapport aux autres. digital C, image processing means 200 configured to process the signal obtained at the output of digital camera C and means for displaying the processed signal constituted in particular by the display screen 105. Said acquisition means and d The analysis comprises between the support plate 121 and the digital camera C an optical system for returning the light beam transmitted by and around the ophthalmic lens 103 comprising in particular a frosted plate 122 forming a screen and a mirror 125 inclined at 45 °. The digital camera C collects, via the optical angular return operated by the inclined mirror 125, the images or shadows projected on the frosted screen 122. [71] Advantageously, in the centering-blocking device 100, said support for the ophthalmic lens, said illumination means and said acquisition and analysis means are fixed with respect to one another.
[72] En outre, comme le montre la figure 3, il comporte un trajet optique unique entre lesdits moyens d'éclairement et lesdits moyens d'acquisition et d'analyse, ce qui présente l'avantage de réduire l'encombrement et les coûts de fabrication du dispositif et surtout de permettre d'obtenir une précision pérenne de mesure. [72] In addition, as shown in Figure 3, it comprises a single optical path between said illumination means and said acquisition and analysis means, which has the advantage of reducing the size and costs. manufacturing of the device and especially to obtain a lasting precision of measurement.
[73] Le dispositif centreur-bloqueur 100 décrit ci-dessus permet la mise en oeuvre d'un procédé pour assister un utilisateur à l’application d’une vignette adhésive 150 sur une face d’une lentille ophtalmique 103 avec son contour initial 400, notamment circulaire, avant débordage. [73] The centering-blocker device 100 described above allows the implementation of a method to assist a user in the application of an adhesive sticker 150 on one face of an ophthalmic lens 103 with its initial contour 400 , in particular circular, before overflow.
[74] Ce procédé comporte les étapes suivantes (voir figure 4) : [74] This process comprises the following steps (see figure 4):
[75] Lors d’une étape 300, on fixe la lentille ophtalmique 103 avec son contour initial circulaire 400 dans un support formé plus particulièrement par le [75] During a step 300, the ophthalmic lens 103 is fixed with its initial circular outline 400 in a support formed more particularly by the
mécanisme de centrage 102 ou la plaque de support 121. Cette opération peut être suivie en temps réel par l’utilisateur sur l’écran de visualisation 105 du pupitre de travail 101. En effet, la lentille ophtalmique 103 est éclairée par des rayons de lumière parallèle 2 et le contour initial 400 de la lentille ophtalmique 103 est visible sur l’écran dépoli 122 et est pris en image par la caméra C. L’(es) image(s) acquis(es) est / sont transmise(s) sur l’écran de visualisation 105 par les moyens 200 de traitement d’image. Plus spécifiquement, les moyens 200 de traitement d’image peuvent détecter le contour initial de la lentille ophtalmique 103 et remplacer par exemple dans les images transmises à l’écran de visualisation 105 tous les pixels en dehors du contour initial détecté par des pixels d’une couleur prédéfinie comme par exemple le noir. centering mechanism 102 or the support plate 121. This operation can be followed in real time by the user on the display screen 105 of the work desk 101. Indeed, the ophthalmic lens 103 is illuminated by rays of light parallel 2 and the initial outline 400 of the ophthalmic lens 103 is visible on the frosted screen 122 and is imaged by the camera C. The acquired image (s) is / are transmitted on the display screen 105 by the image processing means 200. More specifically, the image processing means 200 can detect the initial contour of the ophthalmic lens 103 and replace, for example, in the images transmitted to the display screen 105 all the pixels outside the initial contour detected by pixels of a predefined color such as black, for example.
[76] Par ailleurs, lors de la fixation de la lentille ophtalmique 103 sur le [76] Furthermore, when fixing the ophthalmic lens 103 on the
mécanisme de centrage 102 ou la pose sur la plaque de support 121 , l’utilisateur a par exemple renseigné via une interface d’entrée (non représentée) les moyens 200 de traitement avec des données géométriques et caractéristiques de la lentille ophtalmique 103, en particulier la forme du contour final 402 (visible sur fig. 5 et 6) à réaliser à l’intérieur du contour initial 400 et la position et orientation par rapport à ce dernier. [77] Lors d’une étape 302, on détermine à partir de données géométriques du contour final 402 à réaliser de la lentille ophtalmique 103 une projection ou un positionnement du contour final 402 à l’intérieur du contour initial 400 de la lentille ophtalmique 103. Les données géométriques du contour final 402, ou données monture, sont obtenues soit d’une base de données, soit, directement ou indirectement, de la mesure d’un contour d’un cerclage de la monture de lunettes ou de la mesure d’un contour d’un verre de lunette de présentation initialement monté dans ladite monture. Par ailleurs, la détermination de la projection ou du positionnement du contour final 402 à l’intérieur du contour initial 400 de la lentille ophtalmique 103 est obtenue soit d’une base de donnée ou d’un fichier, ayant été déterminés dans une étape précédente, soit par calcul, au moyen d’un centering mechanism 102 or placing it on the support plate 121, the user has for example informed via an input interface (not shown) the processing means 200 with geometric data and characteristics of the ophthalmic lens 103, in particular the shape of the final contour 402 (visible in FIGS. 5 and 6) to be produced inside the initial contour 400 and the position and orientation with respect to the latter. [77] During a step 302, a projection or positioning of the final contour 402 inside the initial contour 400 of the ophthalmic lens 103 is determined from geometric data of the final contour 402 to be produced of the ophthalmic lens 103. The geometric data of the final contour 402, or frame data, are obtained either from a database or, directly or indirectly, from the measurement of a contour of a rim of the spectacle frame or from the measurement of 'an outline of a presentation spectacle lens initially mounted in said frame. Furthermore, the determination of the projection or of the positioning of the final contour 402 inside the initial contour 400 of the ophthalmic lens 103 is obtained either from a database or from a file, having been determined in a previous step. , either by calculation, by means of a
processeur, en prenant en compte lesdites données monture, des données de port et des données de centrage de la lentille ophtalmique. Les données de port expriment ici des grandeurs mesurées en condition de port, réelle ou virtuelle, de la monture par le porteur, ou utilisateur final. Les données de port sont par exemple liées à la position de la pupille du porteur par rapport à la position du contour de la lentille ophtalmique en condition de port. Ce sont par exemple les données dites de hauteur, d’écart pupillaire (PD), données boxing. Les données de centrage du verre expriment ici les données correspondant à la position de la pupille du porteur par rapport à la géométrie des surfaces optiques du verre de lunette. Ces données de centrage sont en général associées à un centre optique de la lentille ophtalmique, ou une marque de montage, une zone de vision de près, une zone de vision de loin... etc. Ces données de montage peuvent être issues d’une base de données ou d’un fichier ou être extraites au moyen de la machine de centrage, en identifiant, automatiquement ou manuellement, soit des micro cercles, soit des marquages à l’encre sur la lentille ophtalmique 103 à déborder, tels qu’une croix de montage ou un marqueur de centre optique... etc. processor, taking into account said frame data, port data and data for centering the ophthalmic lens. The wearing data here expresses quantities measured under wearing conditions, real or virtual, of the frame by the wearer, or end user. The wearing data are for example linked to the position of the pupil of the wearer relative to the position of the outline of the ophthalmic lens in the wearing condition. These are for example the so-called height, pupillary distance (PD) data, boxing data. The lens centering data here expresses the data corresponding to the position of the wearer's pupil with respect to the geometry of the optical surfaces of the spectacle lens. These centering data are generally associated with an optical center of the ophthalmic lens, or a fitting mark, a near vision zone, a far vision zone, etc. These assembly data can come from a database or a file or be extracted by means of the centering machine, by identifying, automatically or manually, either micro circles or ink markings on the ophthalmic lens 103 to protrude, such as a mounting cross or an optical center marker ... etc.
[78] Puis lors d’une étape 304, on crée une aide visuelle pour l’utilisateur lui [78] Then in step 304, a visual aid is created for the user.
permettant d’appliquer la vignette adhésive 150 sur la lentille ophtalmique 103 avec son contour initial 400 avant débordage de sorte que la vignette adhésive 150 puisse être appliquée à l’intérieur du contour final 402 et à la position exacte du blocage. On affiche donc les images par exemple sur l’écran de visualisation 105 en superposant ou en y incrustant à ces images prises par la caméra C le contour final 402 de la lentille ophtalmique 103 comme aide visuelle. L’étape de formation d’une aide visuelle comprend donc la formation d’une image d’aide visuelle qui peut être affiché sur l’écran ou, selon un autre mode de réalisation, être projeté comme image par un projecteur d’images ou un laser sur la lentille ophtalmique 103. making it possible to apply the adhesive sticker 150 on the ophthalmic lens 103 with its initial outline 400 before edging so that the adhesive sticker 150 can be applied inside the final outline 402 and at the exact position of the blocking. The images are therefore displayed for example on the viewing screen 105 by superimposing or overlaying thereon these images taken by the camera C the final contour 402 of the ophthalmic lens 103 as a visual aid. The step of forming a visual aid therefore comprises forming a visual aid image which can be displayed on the screen or, according to another embodiment, be projected as an image by an image projector or a laser on the ophthalmic lens 103.
[79] La figure 5 montre un exemple d’un affichage d’un écran de visualisation 105 préliminaire à l’étape d’utilisation de l’aide visuelle de l’invention. Sur cette figure 5, les moyens 200 de traitement ont affiché une photo prise par la caméra C et remplacé les pixels en dehors du contour initial 400 par des pixels noirs. A l’intérieur du contour initial 400, les moyens 200 de traitement ont projeté un contour final 402 de la lentille ophtalmique 103 à réaliser. Ainsi, l’utilisateur est en mesure de vérifier par exemple que le positionnement du contour final de la lentille ophtalmique , du point de centrage, correspondant à un point de la lentille ophtalmique destiné à être face à la pupille du porteur en condition de port de la lentille ophtalmique, qui ont été déterminés par la machine sont en adéquation avec l’image de la lentille ophtalmique et en particulier de quelconques marques de montage visibles sur la lentille ophtalmique. Par ailleurs il est possible de vérifier que le positionnement du contour final de la lentille ophtalmique est bien inclus dans le contour initial de la lentille ophtalmique. Ici le point de centrage correspond à la croix blanche visible sur la photo. [79] Figure 5 shows an example of a display of a viewing screen 105 preliminary to the step of using the visual aid of the invention. In this FIG. 5, the processing means 200 have displayed a photo taken by the camera C and replaced the pixels outside the initial outline 400 with black pixels. Within the initial contour 400, the processing means 200 have projected a final contour 402 of the ophthalmic lens 103 to be produced. Thus, the user is able to verify, for example, that the positioning of the final contour of the ophthalmic lens, of the centering point, corresponding to a point of the ophthalmic lens intended to face the pupil of the wearer in the wearing condition of the ophthalmic lens, which were determined by the machine, match the image of the ophthalmic lens and in particular any mounting marks visible on the ophthalmic lens. Furthermore, it is possible to verify that the positioning of the final contour of the ophthalmic lens is indeed included in the initial contour of the ophthalmic lens. Here the centering point corresponds to the white cross visible in the photo.
[80] Selon un mode de réalisation de l’invention, l’opérateur, ou un opticien [80] According to one embodiment of the invention, the operator, or an optician
manipulant le centreur bloqueur selon l’invention peut activer la fonction d’aide visuelle en sélectionnant sur l’écran de visualisation un bouton correspondant. Alternativement, la fonction aide visuelle peut être systématique ou manipulating the centralizer and blocker according to the invention can activate the visual aid function by selecting a corresponding button on the display screen. Alternatively, the visual aid function can be systematic or
préprogrammée. L’écran de visualisation change alors pour celui de la figure 6. Sur cet écran est alors affiché en continu des images prises par la caméra, en temps réel, sans nécessairement que les moyens 200 de traitement suppriment artificiellement les moyens de supports de la lentille ophtalmique. Les moyens de traitement 200 déterminent à l’intérieur de la projection ou le positionnement du contour final 402 la position théorique d’un gland de blocage 152 qui sera utilisé pour bloquer la lentille ophtalmique 103 avant débordage et détermine la position d’une aide visuelle indiquant à l’utilisateur une zone correspondant à la position souhaitée de collage de la vignette. [81 ] Dans certains cas, la vignette adhésive 150 possède un contour elliptique non circulaire avec un trou central, et les moyens 200 de traitement montrent sur l’écran de visualisation une aide visuelle sous forme d’un contour de vignette 406 et du trou central 404 incrustés dans l’image qui indique à l’intérieur du contour final 402 l’orientation de la vignette adhésive 150 à apposer. Ainsi, tout en regardant l’écran de visualisation 105, l’utilisateur est en mesure d’apposer de façon précise par marouflage la vignette adhésive 150. Dans ce cas, on comprend bien que l’aide visuelle est « en quelque sorte » immatérielle et réalisée par incrustation d’informations visuelles (ici l’image du contour 406 de la vignette et/ ou du contour final 402) qui sont affichées sur l’écran en même temps que le prise de vue de la caméra C de la lentille ophtalmique 103. Cette incrustation peut se faire en remplaçant certains pixels affichés par une couleur déterminée, par exemple du rouge ou du noir. preprogrammed. The display screen then changes to that of FIG. 6. On this screen are then continuously displayed images taken by the camera, in real time, without necessarily the processing means 200 artificially removing the lens support means. ophthalmic. The processing means 200 determine inside the projection or the positioning of the final contour 402 the theoretical position of a blocking acorn 152 which will be used to block the ophthalmic lens 103 before edging and determines the position of a visual aid indicating to the user an area corresponding to the desired position for pasting the sticker. [81] In some cases, the adhesive sticker 150 has a non-circular elliptical outline with a central hole, and the processing means 200 shows on the display screen a visual aid in the form of a sticker outline 406 and the hole central 404 embedded in the image which indicates inside the final outline 402 the orientation of the adhesive sticker 150 to be affixed. Thus, while looking at the display screen 105, the user is able to affix the adhesive sticker 150 in a precise manner by masking. In this case, it is clearly understood that the visual aid is “in a way” immaterial. and produced by overlaying visual information (here the image of the contour 406 of the thumbnail and / or of the final contour 402) which are displayed on the screen at the same time as the shooting of the camera C of the ophthalmic lens 103. This overlay can be done by replacing certain displayed pixels by a determined color, for example red or black.
[82] Selon une alternative non représentée, l’aide visuelle comprend un dispositif de marquage effaçable ou temporaire sur la lentille ophtalmique 103 avec son contour initial 400 qui indique le contour final 402 et/ou une zone 404 [82] According to an alternative not shown, the visual aid comprises an erasable or temporary marking device on the ophthalmic lens 103 with its initial outline 400 which indicates the final outline 402 and / or an area 404
correspondant à la position du gland de blocage 152 lors de l’opération de débordage et/ou un contour de vignette 406. Il s’agit donc d’un marquage physique temporaire par apposition de matière. corresponding to the position of the blocking acorn 152 during the edging operation and / or a sticker outline 406. It is therefore a temporary physical marking by affixing material.
[83] De manière générale l’aide visuelle comporte des indicateurs de centrage de la vignette adhésive 150 et des indicateurs d’orientation de ladite vignette adhésive 150. Ainsi, dans l’exemple ci-dessus, le contour elliptique est à la fois un indicateur de l’orientation de la vignette adhésive 150, mais aussi un indicateur permettant de positionner de façon optimale le centre de la vignette adhésive. Ce deuxième aspect est renforcé par la présence d’une représentation 404 du trou présent au milieu de la vignette adhésive 150. [83] In general, the visual aid comprises indicators for centering the adhesive sticker 150 and indicators for the orientation of said adhesive sticker 150. Thus, in the example above, the elliptical outline is both a indicator of the orientation of the adhesive sticker 150, but also an indicator for optimally positioning the center of the adhesive sticker. This second aspect is reinforced by the presence of a 404 representation of the hole in the middle of the adhesive sticker 150.
[84] Cependant, au lieu de former une aide visuelle de contour similaire ou [84] However, instead of forming a visual aid of similar outline or
identique à la vignette utilisée, il est possible de former tout autre aide visuelle permettant un centrage et une orientation de l’aide visuelle. A titre d’exemples d’alternatives, l’aide visuel peut comporter une série de repères permettant dans un temps d’orienter correctement la vignette adhésive 150 selon son axe principal ou axe long (par le grand axe de l’ellipse si la vignette est elliptique), puis une autre série de repères permettant dans un second temps de positionner le centre de la vignette à la position souhaitée. Par exemple ce peut être la formation d’un ou plusieurs traits parallèles 411 à un axe long de tailles variées permettant de déduire un centre 413 comme cela est représenté à titre identical to the sticker used, it is possible to form any other visual aid allowing centering and orientation of the visual aid. As examples of alternatives, the visual aid can include a series of markers allowing the adhesive sticker 150 to be correctly oriented in time according to its main axis or long axis (by the major axis of the ellipse if the sticker is elliptical), then another series of marks allowing in a second time to position the center of the sticker to the desired position. For example, this may be the formation of one or more lines 411 parallel to a long axis of various sizes making it possible to deduce a center 413 as shown by way of illustration.
d’exemple sur la figure 7. example in Figure 7.
[85] Ce peut être la formation de traits 415 selon un axe long et de traits 417 [85] It can be the formation of lines 415 along a long axis and lines 417
selon un axe court, les deux dits axes se croisant, les dits traits 415 et 417 pouvant comporter des indicateurs de fin de trait tels que flèches ou points. along a short axis, the two said axes intersecting, the said lines 415 and 417 possibly comprising end of line indicators such as arrows or points.
Alternativement il peut n’y avoir qu’une marque de centre de vignette au lieu de celle correspondant au contour de trou 404, par exemple au moyen d’un cercle et une ou plusieurs marques indiquant une direction d’axe long par rapport au centre, par exemple des traits (voir également figure 7). Alternativement ce peut être une combinaison totale ou partielle de plusieurs des exemples ci-dessus ou encore d’autres moyens alternatifs. Alternatively there may be only one sticker center mark instead of the one corresponding to the hole outline 404, for example by means of a circle and one or more marks indicating a direction of long axis with respect to the center. , for example lines (see also figure 7). Alternatively, it may be a total or partial combination of several of the above examples or even other alternative means.
[86] Selon certaines alternatives, le contour final 402 de la lentille ophtalmique est affiché lors de la formation de l’aide visuelle, par exemple par affichage sur un écran de visualisation. Selon d’autres alternatives, l’aide visuelle est formée ou affichée seule, sans présence du contour final de la lentille ophtalmique. [86] According to some alternatives, the final outline 402 of the ophthalmic lens is displayed during training of the visual aid, for example by display on a viewing screen. According to other alternatives, the visual aid is formed or displayed on its own, without the presence of the final outline of the ophthalmic lens.
[87] On comprend donc que la présente invention permet d’apposer au final, par exemple par un opérateur et par marouflage, de façon précise une vignette adhésive 150 sur une lentille ophtalmique 103 avant débordage pour permettre un maintien efficace lors des opérations de détourage. [87] It is therefore understood that the present invention makes it possible to affix at the end, for example by an operator and by marouflage, in a precise manner an adhesive sticker 150 on an ophthalmic lens 103 before edging to allow effective maintenance during trimming operations. .
[88] Après ledit marouflage, le gland peut être fixé sur la vignette adhésive [88] After said smoothing, the acorn can be attached to the adhesive sticker
présente sur la lentille ophtalmique et celle-ci peut être détourée ou débordée de manière aisée. present on the ophthalmic lens and the latter can be easily cut out or protruded.

Claims

Revendications Claims
[Revendication 1 ] [Procédé pour assister un utilisateur à l’application par marouflage d’une vignette adhésive (150) sur une face d’une lentille [Claim 1] [A method of assisting a user in applying an adhesive sticker (150) by masking to one side of a lens
ophtalmique (103) avec un contour initial (400) avant débordage comprenant : ophthalmic (103) with an initial contour (400) before edging comprising:
- le maintien de la lentille ophtalmique (103) avec son contour initial (400) par un support (102 ; 121 ), - maintaining the ophthalmic lens (103) with its initial outline (400) by a support (102; 121),
- la détermination à partir de données géométriques du contour final (402) à réaliser de la lentille ophtalmique (103) d’un positionnement du contour final (402) à l’intérieur du contour initial (400) de la lentille ophtalmique (103), - determining from geometric data of the final contour (402) to be produced of the ophthalmic lens (103) of a positioning of the final contour (402) within the initial contour (400) of the ophthalmic lens (103) ,
- la formation d’une une aide visuelle pour l’utilisateur lui permettant d’appliquer par marouflage la vignette adhésive (150) sur la lentille - the formation of a visual aid for the user allowing him to apply the adhesive sticker (150) to the lens by masking
ophtalmique (103) avec son contour initial (400) avant débordage de sorte que la vignette adhésive (150) puisse être appliquée par marouflage à l’intérieur du contour final (402). ophthalmic (103) with its initial contour (400) before edging so that the adhesive sticker (150) can be applied by masking inside the final contour (402).
[Revendication 2] Procédé selon la revendication 1 , comprenant en plus la détermination à l’intérieur dudit positionnement du contour final (402) d’une position théorique du gland de blocage (152) pour bloquer la lentille [Claim 2] The method of claim 1, further comprising determining within said final contour positioning (402) a theoretical position of the blocking acorn (152) to block the lens
ophtalmique (103) avant débordage, et l’aide visuelle correspondant à une zone (402) centrée sur la position théorique du gland de blocage (152) lors de l’opération de débordage et adaptée pour indiquer cette position. ophthalmic (103) before overflowing, and the visual aid corresponding to an area (402) centered on the theoretical position of the blocking glans (152) during the overflow operation and adapted to indicate this position.
[Revendication 3] Procédé selon l’une quelconque des revendications 1 ou 2, dans lequel l’aide visuelle possède une forme permettant d’indiquer une orientation et un centrage de la vignette adhésive à appliquer. [Claim 3] A method according to any one of claims 1 or 2, wherein the visual aid is shaped to indicate an orientation and a centering of the adhesive sticker to be applied.
[Revendication 4] Procédé selon la revendication 3, dans lequel l’aide [Claim 4] The method of claim 3, wherein the aid
visuelle possède une forme correspondant au contour de la vignette adhésive à apposer (406). visual has a shape corresponding to the outline of the adhesive sticker to be affixed (406).
[Revendication 5] Procédé selon l’une quelconque des revendications 1 à 4, dans le cas où la vignette adhésive (150) possède un contour elliptique non circulaire, dans lequel l’aide visuelle indique l’orientation de la vignette adhésive à apposer (406) correspondant à l’orientation du gland de blocage (152) lors de l’opération de débordage. [Claim 5] A method according to any one of claims 1 to 4, in the case where the adhesive sticker (150) has a non-circular elliptical outline, in which the visual aid indicates the orientation of the adhesive sticker to be affixed ( 406) corresponding to the orientation of the locking acorn (152) during the overflow operation.
[Revendication 6] Procédé selon l’une quelconque des revendications 1 à[Claim 6] A method according to any one of claims 1 to
5, dans lequel l’étape de formation d’une aide visuelle comprend la formation d’une image d’aide visuelle. 5, wherein the step of forming a visual aid comprises forming a visual aid image.
[Revendication 7] Procédé selon l’une quelconque des revendications 1 à [Claim 7] A method according to any one of claims 1 to
6, comprenant la capture avec une caméra (C) en temps réel des images de la lentille ophtalmique (103) avec son contour initial (400), maintenu par le support (102 ; 121 ) et l’affichage en temps réel de ces images sur un écran de visualisation (105) en superposant à ces images prises l’aide visuelle ou en incrustant dans ces images prises l’aide visuelle. 6, comprising the capture with a camera (C) in real time of the images of the ophthalmic lens (103) with its initial outline (400), maintained by the support (102; 121) and the real time display of these images on a display screen (105) by superimposing these images taken the visual aid or by embedding in these images taken the visual aid.
[Revendication 8] Procédé selon la revendication 7, comprenant l’affichage du contour final (402) de la lentille ophtalmique (103) superposé aux dites images. [Claim 8] A method according to claim 7, comprising displaying the final outline (402) of the ophthalmic lens (103) superimposed on said images.
[Revendication 9] Procédé selon la revendication 6, dans lequel la [Claim 9] A method according to claim 6, wherein the
formation d’une image d’aide visuelle comprend la projection d’une image d’une aide visuelle sur la lentille ophtalmique (103), en particulier avec un laser ou un projecteur d’images. Visual aid imaging includes projecting a visual aid image onto the ophthalmic lens (103), particularly with a laser or image projector.
[Revendication 10] Procédé de débordage d’une lentille ophtalmique (103) comprenant [Claim 10] A method of edging an ophthalmic lens (103) comprising
- la fourniture d’une lentille ophtalmique (103), - the supply of an ophthalmic lens (103),
- la fourniture d’un gland (152), - the supply of an acorn (152),
- la fourniture d’une vignette adhésive (150), - the supply of an adhesive sticker (150),
- la formation d’une aide visuelle pour assister un utilisateur à l’application d’une vignette adhésive (150) sur une face d’une lentille ophtalmique (103) avec un contour initial (400) selon l’une quelconque des revendications 1 à 7, comprenant de plus - forming a visual aid to assist a user in applying an adhesive sticker (150) to a face of an ophthalmic lens (103) with an initial outline (400) according to any one of claims 1 to 7, further comprising
- le marouflage de la vignette adhésive (150) sur la lentille ophtalmique (103) avec son contour initial (400) avant débordage sensiblement centrée et orientée en fonction de l’aide visuelle, - the masking of the adhesive sticker (150) on the ophthalmic lens (103) with its initial outline (400) before overflow substantially centered and oriented according to the visual aid,
- la fixation du gland (152) sur la vignette adhésive (150), ainsi que le débordage de la lentille ophtalmique (150) maintenue au moyen dudit gland (152) dans une machine de détourage. - the fixing of the glans (152) on the adhesive sticker (150), as well as the overflow of the ophthalmic lens (150) held by means of said acorn (152) in a trimming machine.
[Revendication 11 ] Dispositif (100) de mise en œuvre d’un procédé selon l’une quelconque des revendications 1 à 10, comprenant - un support (102, 121 ) pour maintenir la lentille ophtalmique (103) avec son contour initial (400), [Claim 11] Device (100) for implementing a method according to any one of claims 1 to 10, comprising - a support (102, 121) for maintaining the ophthalmic lens (103) with its initial outline (400),
- une unité (200) de traitement configurée pour déterminer à partir de données géométriques du contour final (402) à réaliser de la lentille - a processing unit (200) configured to determine from geometric data of the final contour (402) to be produced of the lens
ophtalmique (103) un positionnement du contour final (402) à l’intérieur du contour initial (400) de la lentille ophtalmique (103), ophthalmic (103) positioning of the final contour (402) inside the initial contour (400) of the ophthalmic lens (103),
- une unité de formation d’une aide visuelle commandée par l’unité de traitement (200) et configurée pour permettre à un utilisateur d’appliquer par marouflage la vignette adhésive (150) sur la lentille ophtalmique (103) avec un contour initial (400) avant débordage de sorte que la vignette adhésive (150) puisse être appliquée à l’intérieur du contour final (402). - a unit for forming a visual aid controlled by the processing unit (200) and configured to allow a user to apply by masking the adhesive sticker (150) on the ophthalmic lens (103) with an initial outline ( 400) before edging so that the adhesive sticker (150) can be applied inside the final contour (402).
[Revendication 12] Dispositif selon la revendication 11 , dans lequel l’unité de traitement (200) est configurée pour déterminer à l’intérieur du positionnement du contour final (402) la position théorique d’un gland de blocage (152) pour bloquer la lentille ophtalmique (103) lors de l’opération de débordage, et l’unité de formation de l’aide visuelle est configurée pour former une aide visuelle (406) centrée sur la position d’un gland de blocage (152), et adaptée pour indiquer cette position. [Claim 12] A device according to claim 11, wherein the processing unit (200) is configured to determine within the positioning of the final contour (402) the theoretical position of a locking acorn (152) for locking. the ophthalmic lens (103) during the edging operation, and the visual aid forming unit is configured to form a visual aid (406) centered on the position of a locking glans (152), and adapted to indicate this position.
[Revendication 13] Dispositif selon l’une quelconque des revendications 11 à 12, lequel l’aide visuelle (406) a une forme correspondant à un contour de la vignette adhésive (150). [Claim 13] Device according to any one of claims 11 to 12, wherein the visual aid (406) has a shape corresponding to an outline of the adhesive sticker (150).
[Revendication 14] Dispositif selon l’une quelconque des revendications 11 à 12, dans lequel l’unité de formation de l’aide visuelle a une forme configurée pour permettre d’indiquer une orientation et un centrage de la vignette adhésive à appliquer par marouflage. [Claim 14] Device according to any one of claims 11 to 12, wherein the visual aid forming unit has a shape configured to allow indication of an orientation and a centering of the adhesive sticker to be applied by marouflage. .
[Revendication 15] Dispositif selon l’une quelconque des revendications 11 à 14, dans lequel il comprend une caméra (C) configurée pour prendre en temps réel des images de la lentille ophtalmique (103) avec son contour initial (400) maintenu par le support (102, 121 ) et l’unité de formation de l’aide visuelle comprend un écran de visualisation (105) configuré pour un affichage en temps réel des images en y superposant ou incrustant l’aide visuelle. [Revendication 16] Dispositif selon l’une quelconque des revendications 11 à 15, dans lequel l’unité de formation de l’aide visuelle est configurée pour un affichage de la zone (404) correspondant à la position du contour final (402) de la lentille ophtalmique (103) superposée aux dites images ou incrustée dans celles-ci. [Claim 15] Device according to any one of claims 11 to 14, in which it comprises a camera (C) configured to take real time images of the ophthalmic lens (103) with its initial outline (400) maintained by the lens. support (102, 121) and the visual aid training unit includes a display screen (105) configured for real-time display of images by overlaying or embedding the visual aid thereon. [Claim 16] Apparatus according to any one of claims 11 to 15, wherein the visual aid training unit is configured to display the area (404) corresponding to the position of the final contour (402) of the ophthalmic lens (103) superimposed on said images or embedded in them.
EP20708123.3A 2019-03-15 2020-03-10 Method for assisting a user in the application of an adhesive label to a surface of an ophthalmic lens with an initial contour before an edging operation and device for implementing the method Active EP3938142B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19305319 2019-03-15
PCT/EP2020/056372 WO2020187651A1 (en) 2019-03-15 2020-03-10 Method for assisting a user in applying an adhesive label to the surface of an ophthalmic lens with an initial contour prior to an edge grinding operation, and device for implementing the method

Publications (2)

Publication Number Publication Date
EP3938142A1 true EP3938142A1 (en) 2022-01-19
EP3938142B1 EP3938142B1 (en) 2023-01-18

Family

ID=66001143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20708123.3A Active EP3938142B1 (en) 2019-03-15 2020-03-10 Method for assisting a user in the application of an adhesive label to a surface of an ophthalmic lens with an initial contour before an edging operation and device for implementing the method

Country Status (6)

Country Link
US (1) US20220152771A1 (en)
EP (1) EP3938142B1 (en)
KR (1) KR20210135493A (en)
CN (1) CN113439009B (en)
BR (1) BR112021014604A2 (en)
WO (1) WO2020187651A1 (en)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114238A1 (en) * 2001-03-22 2002-10-02 Loh Optikmaschinen Ag Arrangement for blocking and tensioning optical lenses to be processed on the edge, in particular spectacle lenses
US20050173046A1 (en) * 2002-08-26 2005-08-11 Marc Savoie Method, apparatus and adhesive composition for ophthalmic lens blocking
US6942746B2 (en) * 2003-12-11 2005-09-13 Optima, Inc. Lens blocking system
FR2866719B1 (en) * 2004-02-24 2006-05-19 Essilor Int METHOD FOR MANUALLY CONTROLLING AN OPHTHALMIC LENS OF LENSES IN A CENTER-BLOCKER AND ASSOCIATED CENTER-BLOCKING DEVICE
CN100587553C (en) * 2004-03-31 2010-02-03 株式会社拓普康 Automatic fixture mounting device for spectacle lens and method for automatically mounting fixture
FR2878977B1 (en) * 2004-12-03 2007-02-16 Essilor Int METHOD AND DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF AN OPHTHALMIC LENS USING A PAIR OF GRIPPING NOSE AND BLOCKING
FR2878976B1 (en) * 2004-12-03 2007-04-27 Essilor Int METHOD AND DEVICE FOR BLOCKING AN OPHTHALMIC LENS BY DISSOCIATION OF CENTERING AND IMMOBILIZATION REFERENCE FUNCTIONS
FR2890190B1 (en) * 2005-08-31 2007-09-28 Essilor Int METHOD FOR CENTERING AN UNDECUTED OPHTHALMIC LENS WITH THE CENTERING POINT OFFSET IN RELATION TO THE GEOMETRIC CENTER
EP2028529B1 (en) * 2007-12-28 2020-09-09 Essilor International Method of calculating an optical system according to a given spectacle frame
FR2962676B1 (en) * 2010-07-13 2012-08-03 Essilor Int METHOD FOR DETOURING AN OPHTHALMIC LENS OF LENSES COMPRISING A COATING FILM
US9308617B2 (en) * 2011-03-16 2016-04-12 Satisloh North America, Inc. Securing structure for optic device
FR2983316B1 (en) * 2011-11-30 2014-06-27 Essilor Int PROCESS FOR PREPARING AN OPHTHALMIC LENS
FR2987572B1 (en) * 2012-03-02 2014-04-18 Essilor Int SYSTEM COMPRISING A POSITIONING AND CENTERING PION FOR AN OPHTHALMIC LENS, A SUBJECTOR AND A TOOL FOR POSITIONING THE ASSEMBLY ON THE POSITIONING AND CENTERING PION
KR102210773B1 (en) * 2012-12-11 2021-02-02 에씰로 앙터나시오날 Method of taping an optical lens member
FR3008914B1 (en) * 2013-07-26 2015-09-04 Essilor Int METHOD AND MACHINE FOR ETCHING OPTICAL LENSES
FR3010802B1 (en) * 2013-09-18 2015-10-16 Luneau Technology Operations METHOD FOR ACQUIRING AND MEASURING GEOMETRIC DATA OF A DEMONSTRATION GLASS ADAPTED TO A GLASSES FRAME
FR3013620B1 (en) * 2013-11-26 2015-12-25 Essilor Int METHOD FOR BEVELING AN OPHTHALMIC LENS
FR3024246B1 (en) * 2014-07-25 2016-08-05 Essilor Int METHOD FOR PRODUCING A DETOURING SETTING OF AN OPTICAL LENS

Also Published As

Publication number Publication date
CN113439009B (en) 2023-07-21
CN113439009A (en) 2021-09-24
BR112021014604A2 (en) 2021-10-05
WO2020187651A1 (en) 2020-09-24
US20220152771A1 (en) 2022-05-19
EP3938142B1 (en) 2023-01-18
KR20210135493A (en) 2021-11-15

Similar Documents

Publication Publication Date Title
EP1722924B1 (en) Device for centring/clamping an ophthalmic spectacle lens, associated manual centring methods and automatic detection method
EP1817562B9 (en) Device for automatically measuring characteristics of an ophthalmic lens
WO2006059000A1 (en) Method and device for automatically preparing an ophthalmic lens to be mounted
EP2210703B1 (en) Eyeglass lens processing apparatus
EP2430492B1 (en) Product with a flexible ophthalmic lens and process to bring it onto a spectacle lens
EP2091689B1 (en) Device for determining the position and/or transverse dimension of a drill hole in a lens for the presentation of spectacles with a rimless frame
EP1722923B1 (en) Method for manually centering an ophthalmic lens in a centering/locking device and associated centering/locking device
EP1352708B1 (en) Method and apparatus for polishing an eyeglass lens comprising non-contacting measurement
EP2091690B9 (en) Method for determining the position of a drill hole to be formed in an ophthalmic lens
EP2196845B1 (en) Method for preparing an ophthalmic lens in order to mount it on a curved spectacle frame
EP3938142B1 (en) Method for assisting a user in the application of an adhesive label to a surface of an ophthalmic lens with an initial contour before an edging operation and device for implementing the method
FR3008914A1 (en) METHOD AND MACHINE FOR ETCHING OPTICAL LENSES
WO2006061477A1 (en) Method and device for automatic mounting preparation for an ophthalmic lens with the aid of a pair of gripping, transferring and locking noses
FR2878972A1 (en) METHOD AND DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF AN OPHTHALMIC LENS
WO2006061475A1 (en) Method for locking an ophthalmic lens for the trimming thereof and device for automatic mounting preparation of an ophthalmic lens
FR2838513A1 (en) METHOD FOR TAKING THE SHAPE OF A CONTOUR OF A PRE-MACHINED OPHTHALMIC LENS
EP2253427B1 (en) Apparatus and method for preparing assembly of an ophthalmic eyeglass lens
WO2006013245A1 (en) Device and method for characterising an ophthalmic lens
FR2510767A1 (en) METHOD AND DEVICE FOR CENTERING A LENS
WO2005092571A1 (en) Method for manually centering an ophthalmic lens of spectacles with intermittent display of an opaque sign for correcting the prismatic deflection error induced by the lens
FR2878969A1 (en) DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF OPHTHALMIC LENSES COMPRISING IMMOBILIZATION AND TRANSFER MEANS
FR2878974A1 (en) ORGAN FOR HANDLING AND PALPING AN OPHTHALMIC LENS OF GOGGLES AND DEVICE FOR AUTOMATICALLY PREPARING THE MOUNTING OF OPHTHALMIC LENSES COMPRISING SUCH A BODY

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210819

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220916

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020007689

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1544415

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230215

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230118

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1544415

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230518

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230418

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230518

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230419

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602020007689

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230331

26N No opposition filed

Effective date: 20231019

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230310

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230118

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230310

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240327

Year of fee payment: 5

Ref country code: GB

Payment date: 20240327

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240321

Year of fee payment: 5

Ref country code: FR

Payment date: 20240325

Year of fee payment: 5