EP2253427B1 - Vorrichtung und Verfahren zur Vorbereitung der Montage einer ophthalmischen Brillenlinse - Google Patents

Vorrichtung und Verfahren zur Vorbereitung der Montage einer ophthalmischen Brillenlinse Download PDF

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Publication number
EP2253427B1
EP2253427B1 EP20100290196 EP10290196A EP2253427B1 EP 2253427 B1 EP2253427 B1 EP 2253427B1 EP 20100290196 EP20100290196 EP 20100290196 EP 10290196 A EP10290196 A EP 10290196A EP 2253427 B1 EP2253427 B1 EP 2253427B1
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EP
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Prior art keywords
function
preparation
ophthalmic lens
grindwheel
ophthalmic
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EP20100290196
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English (en)
French (fr)
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EP2253427A1 (de
Inventor
Ahmed Haddadi
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EssilorLuxottica SA
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Essilor International Compagnie Generale dOptique SA
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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
    • B24B9/148—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 electrically, e.g. numerically, controlled
    • 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
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece

Definitions

  • the present invention relates generally to the field of eyewear.
  • It relates more particularly to a method and a device for preparing ophthalmic lenses for mounting on spectacle frames.
  • the technical part of the optician's profession is to mount pairs of ophthalmic lenses (or "job") on glasses frames selected by customers.
  • a machining apparatus may comprise a main grinding wheel for cutting the lenses, a bevel grinding wheel for beveling lenses, and a finisher for creasing, chamfering, polishing and piercing lenses.
  • This lens preparation chain is effective if all the devices work properly. On the other hand, if one of the means of one of the apparatuses has a failure, the whole chain of preparation must be stopped, pending the arrival of a competent technician.
  • documents are known FR 2 915 289 and EP 1 676 683 methods for preparing ophthalmic lenses in which the lens preparation operations are suspended when the machining device detects a problem, for example that the drill bit is broken.
  • the optician is then dependent on the speed of intervention of the technician, so that he can take a considerable delay in his work, not allowing him to deliver on the desired date pairs of glasses ordered by his customers.
  • the present invention provides a device and a method for preparing ophthalmic lenses for continuing to prepare ophthalmic lenses even when a means of one of the apparatuses. of the lens preparation line fails.
  • one of the functions of one of the apparatus of the lens preparation line is defective, it is intended to select, from among the lenses to be prepared, those that can be prepared without using this function. faulty.
  • the sequential chain of lens preparation is thus not interrupted, so that the optician can continue to work.
  • the invention also relates to a device for preparing ophthalmic lenses according to claim 13.
  • an optician In his dispensary, an optician generally has an ophthalmic lens preparation device which allows him, after receiving raw ophthalmic lenses (that is to say not cut off), to prepare these ophthalmic lenses in order to be able to mount them on glasses frames chosen by its customers.
  • such an ophthalmic lens preparation device 1 comprises an edge reading device 100, a centering and clamping device 200, and a machining apparatus 300 controlled by a control unit 2.
  • These three devices 100, 200, 300 form a chain of sequential preparation of ophthalmic lenses, in that the ophthalmic lenses being prepared must successively pass on these three devices before being mountable on the spectacle frames selected by the customers of the optician.
  • This chain of preparation could of course include other devices, such as for example an apparatus for probing ophthalmic lenses. However, for the sake of clarity, this presentation will be limited to these devices 100, 200, 300.
  • eyeglass frames There are three main categories of eyeglass frames that can be selected by the optician's customers, including rimmed eyeglass frames, semi-rimmed (or “arcaded”) eyeglass frames, and pierced eyeglass frames.
  • a rimmed spectacle frame 10 such as that shown on the figure 2 , has two circles 11 (or surrounds) each intended to accommodate an ophthalmic lens. These two circles 11 are connected to each other by a bridge or bridge 12. They are each further equipped with a nose pad adapted to rest on the nose of the wearer (or client) and a branch 14 fit to rest on one of the wearer's ears.
  • the two circles 11 of the spectacle frame 10 each have, along their inner faces, a groove (or bezel) of dihedral section, allowing each circle 11 to accommodate an ophthalmic lens having on its field a rib interlocking (or bevel).
  • a semi-rimmed spectacle frame differs from a rimmed spectacle frame in that it comprises not two closed circles, but two portions of a circle (or arches), and two wires that close these arches to hold the ophthalmic lenses. in place.
  • the two arches of the eyeglass frame each have, along their inner faces, a rib allowing them to accommodate an ophthalmic lens having on its field an interlocking groove.
  • a pierced eyeglass frame is devoid of circles. Its bridge and its branches are on the other hand equipped with lugs adapted to be engaged through holes provided in correspondence on the ophthalmic lenses, so that the lenses and the frame form a rigid assembly.
  • the eyeglass frames are generally delivered to the optician with non-corrective lenses, called presentation lenses.
  • They also have front and rear optical faces of specific shapes, so as to have optical characteristics in accordance with the prescriptions of the customers for whom they were ordered.
  • optical reference lenses are also provided with markings that identify the positions of remarkable points of these lenses, in order to determine the positions of optical reference lenses of these lenses.
  • the knowledge of this optical reference system is indeed essential for the optician to mount the ophthalmic lenses in the spectacle frames so that, once the customer (or "wearer") wearing his pair of glasses, the optical centers of the lenses are precisely located next to the client's pupils.
  • the preparation of the raw ophthalmic lenses therefore consists in reducing their contours to the desired shape, so that they can to be mounted in eyeglass frames selected by customers by correctly performing the optical functions for which they were designed.
  • the contour reading device 100 of the preparation device 1 makes it possible to record the shape of the circles 11 of rimmed spectacle frames 10.
  • This contour reading apparatus 100 is well known to those skilled in the art and is not the object of the invention described. Its architecture and operation are for example described in detail in the patent document EP 0 750 172 .
  • this apparatus comprises an upper cover 101 covering the whole of the apparatus with the exception of a central upper portion in which the spectacle frame 10 is arranged.
  • It comprises a set of two jaws 102, at least one of the jaws 102 is movable relative to each other so that the jaws 102 can be moved towards or away from each other to form a clamping device.
  • Each of the jaws 102 is further provided with two clamps each formed of two pads 103 movable to be adapted to clamp the spectacle frame 10 between them in order to immobilize it.
  • a frame 104 In the space left visible by the central upper opening of the cover 101, a frame 104 is visible.
  • a plate (not visible) can move in translation on the frame 104 along a transfer axis A3.
  • On this plate is rotatably mounted a turntable 105.
  • This turntable 105 is adapted to take two positions on the transfer axis A3, including a first position in which the center of the turntable 105 is disposed between the two pairs of pads 103 fixing the right circle of the spectacle frame 10, and a second position in which the center of the turntable 105 is disposed between the two pairs of studs 103 fixing the left circle of the spectacle frame 10.
  • the turntable 105 has an axis of rotation A4 defined as the axis normal to the front face of the turntable 105 and passing through its center. It is adapted to pivot about this axis relative to the plate.
  • the turntable 105 furthermore comprises an oblong aperture 106 in the form of an arc of a circle through which a probe 110 protrudes.
  • This probe 110 comprises a support rod 111 having an axis perpendicular to the plane of the front face of the turntable 105 and at its free end, a feeler pin 112 with an axis perpendicular to the axis of the support rod 111.
  • This feeler finger 112 is intended to follow by sliding or possibly rolling the bottom edge of the bezel of each circle 11 of the spectacle frame 10.
  • the contour reading apparatus 100 comprises actuating means (not shown) adapted, firstly, to slide the support rod 111 along the lumen 106 in order to modify its radial position with respect to the rotation axis A4 of the turntable 105, a second part, to vary the angular position of the turntable 105 about its axis of rotation A4, and, thirdly, to position the probe finger 112 of the probe 110 at a higher or lower altitude relative to the plane of the front face of the turntable 105.
  • actuating means (not shown) adapted, firstly, to slide the support rod 111 along the lumen 106 in order to modify its radial position with respect to the rotation axis A4 of the turntable 105, a second part, to vary the angular position of the turntable 105 about its axis of rotation A4, and, thirdly, to position the probe finger 112 of the probe 110 at a higher or lower altitude relative to the plane of the front face of the turntable 105.
  • the device for reading outlines 100 finally comprises means for acquiring the position of the end of the probe finger 112 of the probe 110, making it possible to acquire the shapes of the circles of the rimmed spectacle frame 10 locked between the pads. 103.
  • the contour reading device 100 is associated with an image capture apparatus (not shown) which comprises image acquisition means and image processing means.
  • This image capture apparatus thus makes it possible to acquire snapshots of spectacle frames equipped with their presentation lenses, and to process these snapshots to deduce the shapes of the presentation lenses.
  • the center-and-blocking device 200 of the preparation device 1 is designed, firstly, to record the positions of the markings of the ophthalmic lenses 20 to be prepared, and, secondly, to block these ophthalmic lenses by depositing on them accessories blocking.
  • This center-and-blocker device 200 is well known to those skilled in the art and does not make the object of the invention described. Its architecture and operation are for example described in detail in the patent document EP 1 722 924 .
  • the holding mechanism 202 here comprises a set of three jaws 214 concentric clamping each carried by an arm 215 pivoting about an axis. Clamping the jaws 214 is controlled by a motor 217, via a pinion 218 and a ring 219 adapted to drive the arms 215 in rotation.
  • An optical or electromagnetic cell 220 allows the motor 217 to know the position of the ring 219.
  • the centering means here comprise a transparent support plate 221 disposed below the holding mechanism 202, illumination means of the ophthalmic lens 20 disposed above the holding mechanism 202, and acquisition and analysis means light transmitted by said ophthalmic lens 20 through the support plate 221.
  • acquisition and analysis means here comprise a digital camera, image processing means adapted to process the signal obtained at the output of the - digital camera and display means of the processed signal, constituted by the display screen 205.
  • These centering means make it possible in particular to acquire an image of the ophthalmic lens 20 and its markings, and to deduce the position therefrom. optical reference system of the ophthalmic lens 20.
  • the locking means comprise a positioning arm 206, preferably automated, connected to the frame 204 and adapted to take with the help of a clamp a locking accessory disposed on a receptacle 207 and to come and place it in a location determined on the front face of said ophthalmic lens 20, a function of the acquired position of the optical reference system of this lens.
  • the locking accessory thus forms a reference representative of the optical reference position of the ophthalmic lens acquired by the optical centering means. It is intended to be engaged in a corresponding housing of the machining apparatus 300, so that the latter acquires the position of the optical reference of the ophthalmic lens.
  • the machining apparatus 300 of the preparation device 1 makes it possible to machine the ophthalmic lenses 20 as a function of the data acquired by the contour reading device 100 and by the centering-and-clamping device 200.
  • This machining apparatus 300 is well known to those skilled in the art and does not make the object of the invention described. It can be realized in the form of any cutting or removal machine capable of modifying the contour of the ophthalmic lens 20 to adapt it to the shape of the selected frame.
  • the latch 301 is equipped with a lens holder here formed by two shafts 302 and 303 for rotating the ophthalmic lens 20 to be machined. These two shafts 302, 203 are aligned with each other along a blocking axis A7 parallel to the axis A5. A first of the two shafts 302 is fixed in translation along the blocking axis A7. On the contrary, the second of the two shafts 303 is movable in translation along the blocking axis A7 in order to effect the compression in axial compression of the ophthalmic lens 20.
  • the control in rotation of this rocker 301 is achieved by means of a rod 330 whose one end is articulated with respect to the frame to pivot about the reference axis A5, and whose other end is articulated with respect to a nut threaded thread 331 for pivoting about an axis A8 parallel to the reference axis A5.
  • the threaded nut 331 is itself in screwed engagement with a threaded rod 332 output of a motor 333.
  • the start of the motor 333 and translates the threaded nut 331 in a translational movement RES axis A9 orthogonal to the reference axis A5.
  • the rod 330 further comprises a stop 334 on which the flip-flop 301 rests, so that the translational movement RES of the threaded nut 331 makes it possible to drive the rocker 301 in rotation about the reference axis A5.
  • the wheel train carried by the wheel carriage comprises a cylindrical cutting wheel 310 which makes it possible to rough the ophthalmic lens 20 so as to reduce its initially circular contour to a shape close to that desired. It further comprises a cylindrical beveling wheel 311, having a beveling groove 312 for forming on the edge of the ophthalmic lens 20 an interlocking rib for mounting on a circled spectacle frame.
  • the finisher 320 has a pivotal mobility around the wheel axis A6, called ESC retraction mobility. This mobility allows it to move closer to or away from the ophthalmic lens 20.
  • the finisher 320 supports a drilling and milling equipment of the ophthalmic lens 20, and a creasing, chamfering and polishing equipment of this ophthalmic lens 20.
  • the creasing, chamfering and polishing equipment is in the form of a gear train rotatably mounted on the finisher 320 about an axis parallel to the reference axis A5.
  • This drill string comprises a cylindrical polishing grinder 325, a disc-shaped creasing wheel 323, and a frustoconical chamfering grinder 324.
  • the irrigation equipment 340 comprises a water pump 341 whose inlet is connected to a water inlet pipe 343 and the outlet of which is connected to a nozzle 342 for ejecting the water on the water.
  • the inlet pipe 343 is connected, on the one hand, to the local hydraulic network, and on the other hand, to an opening provided at the bottom of the water tank.
  • This watering equipment 340 is thus designed to operate in an open circuit by means of the water of the local hydraulic network, or in a closed circuit thanks to the water pump 341 which pumps the water collected by the water tank for reinjection on the wheels.
  • control unit 2 is here common to the three devices 100, 200, 300 in that it communicates with electronic cards provided on each of these three devices, so as to jointly control them.
  • This control unit 2 is here formed by a desktop computer which comprises an electronic and computer central unit 3, a display screen 4, a keyboard 6 and a mouse 5.
  • the optician generally works on a plurality of ophthalmic lenses 20.
  • This plurality of ophthalmic lenses 20 thus forms a lens flow to be sequentially prepared on the different devices 100, 200, 300 of the preparation device 1.
  • the control unit 2 proceeds to a first step a) of controlling the availability of at least one function of the preparation device 1.
  • the control unit 2 checks the availability of all the aforementioned functions of the preparation device 1.
  • the control unit 2 establishes and stores for this purpose an indicator of the state of availability of each function of the preparation device 1.
  • control unit 2 controls each of the means of each of the devices 100, 200, 300 to determine if they are in operating condition or if they are otherwise faulty.
  • the control unit also controls the machining apparatus 300 to determine the degree of wear of its grinding wheels.
  • control unit 2 controls the probe 110 to move in the three dimensions of the space, and simultaneously controls with the help of its means of acquisition the position of the probe, to verify that the probe actually moves according to the desired trajectory.
  • control unit 2 implements control methods such as those described in the patent documents. FR 2 915 289 and FR 2 894 170 .
  • control unit 2 stores the number of machining cycles performed by each grinding wheel or grinder, and from this it deduces the degree of wear of this grinding wheel or grinder.
  • control unit 2 assigns the value 1 to all the indicators of the states of availability of the functions of the preparation device 1.
  • control unit 2 assigns the value 0 to the indicator (s) of the state of availability of the function (s) executed at the time. using this means.
  • control unit 2 assigns the value 0 to the indicators of the states of availability of the clipping functions. , beveling, creasing, drilling, chamfering and polishing.
  • control unit 2 comprises a software or a database register for finding alternative solutions.
  • control unit 2 comprises a database register which comprises a plurality of records each associated with a function of the preparation device. Each record includes one or more preferred means for executing the associated function, and one or more alternative means for executing this function other than using the preferred means or means, in case this preferred means (s) ( s) will be in default (s).
  • the preferred means for performing the bevelling function of an ophthalmic lens 20 is the beveling wheel 311.
  • An alternative means for performing this bevel function is the milling cutter which, if properly driven, allows make a nesting rib on the field of the ophthalmic lens. In this way, if the beveling wheel is faulty but the milling cutter is in operating condition, the control unit 2 sets the value of the utility status indicator of the bevel function to 1, because it can pilot the cutter to bevel the ophthalmic lens.
  • control unit 2 assigns the value 1 to all the indicators of the states of availability of the functions of the preparation device 1.
  • control unit 2 determines the function (s) preferably performed using this means. It then searches the database for each record corresponding to each of these functions considered.
  • control unit 2 If it finds a corresponding record, the control unit 2 reads in this record the alternative means for executing the function, then it checks that this alternative means is in working condition. If it is in operating condition, the control unit 2 then assigns the value 1 to the indicator of the state of availability of the function considered of the preparation device 1. On the other hand, if this alternative means is not in the operating state and that there is no other alternative means, the control unit 2 assigns the value 0 to the indicator of the state of availability of the function considered of the preparation device 1 .
  • control unit 2 has thus memorized for each function of the trimming device an indicator of the state of availability of this function, equal to 1 or 0 depending on whether this function may or may not be executed by means (preferred or alternative) of one of the apparatus of the preparation device 1.
  • control unit 2 acquires a first instruction to prepare a first ophthalmic lens 20 to be treated.
  • This first preparation instruction also comprises a control instruction of the various means of the machining apparatus 300.
  • this instruction set consists of various instructions allowing the means of the machining apparatus 300 machining the first ophthalmic lens 20 to the desired shape.
  • This piloting instruction is initially incomplete and is completed during the preparation of the first ophthalmic lens 20, depending in particular on the shape of the spectacle frame 10 acquired by the contour reading device 100 and centering data. acquired by the center-and-blocker device 200.
  • This control setpoint is furthermore calculated here as a function of the degree of wear of the grinding wheels and grinding wheels of the machining apparatus 300.
  • a wheel or grinder is generally considered to be faulty. so that the function associated with this wheel or grinder is established as unavailable.
  • the control setpoint is instead calculated differently, so that the function remains available.
  • the control unit 2 calculates a degraded control setpoint for machining the first ophthalmic lens with the aid of this damaged wheel or grindstone.
  • This degraded control setpoint here consists in controlling the damaged grinding wheel or grinding wheel at a reduced speed of rotation relative to the nominal rotational speed of this wheel or grinder.
  • control unit 2 derives from this first preparation instruction the functions of the preparation device 1 necessary for the preparation of the first ophthalmic lens 20.
  • the control unit 2 establishes and stores for this purpose, for each function of the preparation device 1, a parameter relating to the necessary or optional character of this function.
  • control unit 2 assigns the value 1 to the parameters relating to the so-called necessary functions of the preparation device 1.
  • the control unit 2 assigns the value 1 to the milling cutter function of the first ophthalmic lens 20.
  • the control unit 2 assigns the value 1 to the function grinding wheel of the first ophthalmic lens 20.
  • the control unit 2 assigns the value 1 to the parameter relating to the watering function of the wheels. However, if it is made of plastic and it does not have to be watered to be machined "hot”, the control unit 2 leaves this parameter equal to 0.
  • control unit 2 verifies that all the functions necessary for the preparation of the first ophthalmic lens 20 are available.
  • control unit 2 proceeds to the preparation of the first ophthalmic lens 20 in a conventional manner and which is well known to the human being. by means of the three apparatuses 100, 200, 300 of the preparation device 1.
  • the control unit 2 interrupts or abandons the preparation of this first ophthalmic lens 20 without executing any of the preparation functions of this lens, then it re-executes steps a) to d) for a second ophthalmic lens distinct from the first ophthalmic lens 20.
  • This second ophthalmic lens is then chosen so that its preparation does not require the use of the unavailable function of the repair device 1.
  • the control unit 2 detects that at least one of the functions i) acquisition and registration of shapes circles of the spectacle frame and ii) beveling of the lens is unavailable, it interrupts or abandons the preparation of the first ophthalmic lens 20, then it re-executes steps a) to d) for a second ophthalmic lens selected to be intended to be mounted on a spectacle frame pierced or semi-rimmed.
  • the control unit 2 detects that at least one of the functions i) of acquisition and recording of the shapes of the lenses of presentation, ii) creasing, iii) chamfering and iv) polishing is unavailable, it interrupts or gives up the preparation of the first ophthalmic lens 20, then it re-executes steps a) to d) for a second ophthalmic lens chosen to be mounted on a rimmed eyeglass frame.
  • the control unit 2 detects that at least one of the functions i) acquisition and registration of the shapes of the presentation lenses, ii) drilling, iii) chamfering and iv) of polishing is unavailable, it interrupts or abandons the preparation of the first ophthalmic lens 20, then it re-executes steps a) to d) for a second ophthalmic lens selected to be intended to be mounted on a circled spectacle frame.
  • the first ophthalmic lens 20 is made of a material requiring watering millstones during its cutting and if the control unit 2 detects that the watering function is unavailable, it interrupts or gives up the preparation of the first ophthalmic lens 20, then it re-executes steps a) to d) for a second ophthalmic lens chosen to be made in a material that does not require watering grinding wheels.
  • the control unit 2 detects that the function of milling is unavailable, it interrupts or abandons the preparation of the first ophthalmic lens 20, then it re-executes steps a) to d) for a second ophthalmic lens chosen to have a camber and / or surface treatments that do not require the use of strawberry 322.
  • control unit 2 does not interrupt the sequential preparation of the ophthalmic lens flow, even when one of the functions of the preparation device 1 is unavailable.
  • control unit 2 proceeds to a final step e) of control during which it verifies that the function executed by the alternating means or following the degraded control instruction has been correctly executed.
  • This control step may for example be carried out using the image capture apparatus, driven to acquire an image of the machined ophthalmic lens, and to process this image so as to determine whether the geometrical characteristics of the the machined lens correspond to those initially desired.
  • control unit does not acquire the instruction to prepare the only first ophthalmic lens considered, but instead acquires the instructions for the preparation of all the ophthalmic lenses to be prepared. Then, during step c), the control unit determines the functions necessary for the preparation of each of these ophthalmic lenses. Then, during step d), the control unit suspends or sets aside the preparation of all the ophthalmic lenses whose preparation requires the use of an unavailable function, and prepares the remaining ophthalmic lenses, whose preparation requires the use of functions that are all available.

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  • 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)

Claims (13)

  1. Verfahren zum Präparieren von Brillengläsern (20) in Hinblick auf ihre Montage in eine Brillenfassung (10) mithilfe einer Präparationsvorrichtung (1), die sich zur Ausführung von sequenziellen Funktionen eignet, welche zur Vorbereitung der Brillengläser (20) beitragen und die zum einen eine programmierte Steuereinheit (2) umfasst, um die Ausführung dieser Funktionen zu steuern und zum anderen ein Gerät zum Ablesen von Konturen (100) und/oder ein Gerät zum Zentrieren-Einspannen (200) und/oder ein Gerät zum Bearbeiten (300), wobei das Verfahren folgende Schritte umfasst:
    a) Erstellen und Speichern eines Indikators der Verfügbarkeit von mindestens einer geprüften Funktion unter den genannten Funktionen,
    b) Erfassen einer Präparationsvorgabe für mindestens ein Brillenglas (20)
    c) von dieser erfassten Präparationsvorgabe ableiten, welche dieser Funktionen zur Vorbereitung des Brillenglases (20) erforderlich ist/sind,
    d) Überprüfen, ob dieser Indikator angibt, dass jede geprüfte Funktion verfügbar ist und wenn ja, das Brillenglas (20) vorbereiten, oder
    wenn nein, die Vorbereitung jedes Brillenglases (20), bei der die zu seiner Vorbereitung erforderlichen Funktionen die geprüfte Funktion enthalten, unterbrechen oder aufgeben, und zur Vorbereitung von mindestens einem anderen Brillenglas übergehen, bei der die zu seiner Vorbereitung erforderlichen Funktionen diese geprüfte Funktion nicht umfassen.
  2. Präparationsverfahren nach Anspruch 1, bei dem man im Schritt d), wobei die Präparationsvorrichtung (1) eine erste geprüfte Funktion zum Facettieren der Brillengläser (20) und/oder eine zweite geprüfte Funktion zum Einrillen der Brillengläser (20) und/oder eine dritte geprüfte Funktion zum Bohren der Brillengläser (20) und/oder einer vierte geprüfte Funktion zum Anfasen der Brillengläser (20) umfasst,
    - wenn der Indikator anzeigt, dass die erste geprüfte Funktion nicht verfügbar ist, die Vorbereitung jedes in eine Brillenfassung mit Rand zu montierendes Brillenglas (20) unterbricht oder aufgibt, oder
    - wenn der Indikator anzeigt, dass die zweite geprüfte Funktion nicht verfügbar ist, die Vorbereitung jedes in eine Nylor-Brillenfassung zu montierendes Brillenglas (20) unterbricht oder aufgibt, oder
    - wenn der Indikator anzeigt, dass die dritte geprüfte Funktion nicht verfügbar ist, die Vorbereitung jedes in eine randlose Brillenfassung zu montierendes Brillenglas (20) unterbricht oder aufgibt, oder
    - wenn der Indikator anzeigt, dass die vierte geprüfte Funktion nicht verfügbar ist, die Vorbereitung jedes in eine randlose oder Nylor-Brillenfassung zu montierendes Brillenglas (20) unterbricht oder aufgibt.
  3. Präparationsverfahren nach einem der Ansprüche 1 und 2, bei dem, während die Präparationsvorrichtung (1) mindestens ein zur Ausführung der geprüften Funktion entwickeltes, bevorzugtes Mittel (110, 206, 310, 321, 322, 323, 324) umfasst, der Indikator für den Funktionsstatus der geprüften Funktion im Schritt a) als verfügbar etabliert wird, wenn das bevorzugte Mittel (110, 206, 310, 321, 322, 323, 324) dazu fähig ist, die geprüfte Funktion auszuführen.
  4. Präparationsverfahren nach Anspruch 3, bei dem man im Schritt a) den Funktionsstatus und/oder Verschleißstatus des bevorzugten Mittels (110, 206, 310, 321, 322, 323, 324) bestimmt und im Schritt b) die erfasste Präparationsvorgabe vom ermittelten Funktions- und/oder Verschleißstatus abhängt.
  5. Präparationsverfahren nach Anspruch 4, bei dem, während die Präparationsvorrichtung (1) als bevorzugte Mittel eine Schleifscheibe zum Zuschneiden (310) und/oder eine Fräse (322) und/oder eine Schleifscheibe zum Facettieren (311) und/oder eine Schleifscheibe zum Einrillen (323) und/oder einen Bohrer (321) und/oder eine Schleifscheibe zum Abfasen (324) und/oder eine Schleifscheibe zum Polieren (325) umfasst, im Schritt a) der Verschleißstatus von mindestens einem der bevorzugten Mittel (310, 321, 322, 323, 324) ermittelt wird und im Schritt b) die erfasste Präparationsvorgabe eine Steuervorgabe für die Drehgeschwindigkeit des bevorzugten Mittels umfasst, welche vom Verschleißstatus abhängt.
  6. Präparationsverfahren nach einem der Ansprüche 4 und 5, bei dem, während die Präparationsvorrichtung (1) eine Schleifscheibe zum Zuschneiden (310) für die Brillengläser (20) und ein mit einer Wasserpumpe (341) versehenes Mittel zum Benässen (340) der Schleifscheibe (310) umfasst, die im Schritt b) erfasste Präparationsvorgabe das Steuern des Mittels zum Benässen (340) in einem geschlossenen Kreislauf umfasst, wenn die Wasserpumpe (341) in einem betriebsfähigen Zustand ist bzw. das Steuern des Mittels zum Benässen (340) in einem offenen Kreislauf, wenn die Wasserpumpe (341) nicht funktionsfähig ist.
  7. Präparationsverfahren nach einem der Ansprüche 3 bis 6, bei dem, während die Präparationsvorrichtung (1) mindestens ein alternatives Mittel (110, 206, 310, 321, 322, 323, 324) zum Ausführen der geprüften Funktion umfasst, der Indikator für den Funktionsstatus der geprüften Funktion im Schritt a) als verfügbar etabliert wird, wenn mindestens eins der bevorzugten oder alternativen Mittel dazu fähig ist, die geprüfte Funktion auszuführen.
  8. Präparationsverfahren nach Anspruch 7, bei dem, während die Präparationsvorrichtung (1) eine bevorzugte Schleifscheibe zum Zuschneiden (310) umfasst, welche eine Zuschneidefunktion von robusten Brillengläsern (20) ausführt, sowie eine Fräse (322), das alternative Mittel zum Ausführen der Zuschneidefunktion die besagte Fräse (322) umfasst.
  9. Präparationsverfahren nach einem der Ansprüche 7 und 8, bei dem, während die Präparationsvorrichtung (1) eine bevorzugte Fräse (322) zum Ausführen einer Zuschneidefunktion von empfindlichen oder rutschigen Brillengläsern (20) und eine Schleifscheibe zum Zuschneiden (310) umfasst, das alternative Mittel zum Ausführen der Zuschneidefunktion die besagte Schleifscheibe zum Zuschneiden (310) umfasst.
  10. Präparationsverfahren nach einem der Ansprüche 7 bis 9, bei dem, während die Präparationsvorrichtung (1) eine bevorzugte Schleifscheibe zum Facettieren (311) zum Ausführen eines Facettierens der Brillengläser (20) und eine Fräse (322) und/oder eine Schleifscheibe zum Abfasen (324) umfasst, das alternative Mittel zum Ausführen des Facettierens die besagte Fräse (322) und/oder die besagte Schleifscheibe zum Abfasen (324) umfasst.
  11. Präparationsverfahren nach einem der Ansprüche 7 bis 10, bei dem, während die Präparationsvorrichtung (1) eine bevorzugte Schleifscheibe zum Einrillen (323) umfasst, um die Brillengläser (20) einzurillen, sowie und einen Bohrer, das alternative Mittel zum Einrillen den besagten Bohrer (321) umfasst.
  12. Präparationsverfahren nach einem der Ansprüche 7 bis 11, bei dem, während die Präparationsvorrichtung (1) einen bevorzugten Bohrer (321) zum Ausführen einer Bohrfunktion an den Brillengläsern (20) sowie eine Fräse (322) umfasst, das alternative Mittel zum Ausführen der Bohrfunktion die besagte Fräse (322) umfasst.
  13. Präparationsvorrichtung (1) für Brillengläser (20) in Hinblick auf ihre Montage in eine Brillenfassung (10) mit einem Gerät zum Ablesen von Konturen (100) und/oder einem Gerät zum Zentrieren-Einspannen (200) und/oder einem Gerät zum Bearbeiten (300), die mit einer Vielzahl von Mitteln (110, 206, 310, 321, 322, 323, 324) ausgestattet sind, wobei jedes angeordnet ist, um eine Funktion auszuführen, die zur Vorbereitung dieser Brillengläser (20) beiträgt, dadurch gekennzeichnet, dass sie eine elektronische Steuereinheit (2) für diese Mittel (110, 206, 310, 321, 322, 323, 324) umfasst, die sich dazu eignet, das Präparationsverfahren nach einem der Ansprüche 1 bis 12 umzusetzen.
EP20100290196 2009-05-20 2010-04-12 Vorrichtung und Verfahren zur Vorbereitung der Montage einer ophthalmischen Brillenlinse Active EP2253427B1 (de)

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FR0902464A FR2945875B1 (fr) 2009-05-20 2009-05-20 Dispositif et procede de preparation au montage d'une lentille ophtalmique de lunettes

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FR2974424B1 (fr) * 2011-04-21 2013-09-13 Essilor Int Support de lentille ophtalmique

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FR2735858B1 (fr) 1995-06-23 1997-09-12 Essilor Int Calibre etalon pour l'etalonnage d'un appareil de lecture de contour pour monture de lunettes, et procede d'etalonnage correspondant
FR2866718B1 (fr) 2004-02-24 2006-05-05 Essilor Int Dispositif centreur-bloqueur d'une lentille ophtalmique de lunettes, methode de detection automatique et methodes de centrage manuel associees
JP2006189472A (ja) * 2004-12-28 2006-07-20 Nidek Co Ltd 眼鏡レンズ加工装置
FR2894170B1 (fr) 2005-12-05 2009-07-03 Essilor Int Methode d'etalonnage d'une meuleuse
FR2915289B1 (fr) * 2007-04-18 2009-07-03 Essilor Int Dispositif et procede de preparation d'une lentille ophtalmique en vue de son usinage

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