EP1601496B1 - Verfahren zur maschinellen bearbeitung einer ophthalmischen linse und bearbeitungsvorrichtung zur durchführung des verfahrens - Google Patents

Verfahren zur maschinellen bearbeitung einer ophthalmischen linse und bearbeitungsvorrichtung zur durchführung des verfahrens Download PDF

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Publication number
EP1601496B1
EP1601496B1 EP04717673.0A EP04717673A EP1601496B1 EP 1601496 B1 EP1601496 B1 EP 1601496B1 EP 04717673 A EP04717673 A EP 04717673A EP 1601496 B1 EP1601496 B1 EP 1601496B1
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EP
European Patent Office
Prior art keywords
axis
template
rocker
blank
machining
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Expired - Fee Related
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EP04717673.0A
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English (en)
French (fr)
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EP1601496A1 (de
Inventor
Laurent Guillermin
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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
    • 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes
    • 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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; 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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
    • B24B17/02—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only
    • B24B17/025—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only for grinding rotating workpieces (three dimensional)
    • B24B17/026—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only for grinding rotating workpieces (three dimensional) for the periphery of plane workpieces, e.g. cams, lenses

Definitions

  • the present invention relates to a method and a machine for machining an ophthalmic lens, according to the preamble of claims 1 and 8.
  • FR 2 734 505 discloses a method and a machine according to the preamble of claims 1 and 8.
  • the production of an ophthalmic lens is generally performed by grinding a blank. This machining makes it possible to give the blank the shape of the desired lens so that the latter can be mounted in a spectacle frame circle.
  • a template which takes the shape of the circle of the frame in which the glass must take place.
  • the template is mounted on the grinder as well as the blank to be machined.
  • the grinder then copies the shape of the template.
  • the copying is done mechanically.
  • the machining path is generated by the template which moves on a key whose radius is substantially the same as that of the grinding wheels.
  • a digital grinder is then associated with a reader which, before machining the blank, digitizes the shape of the circle of the frame corresponding to the glass that is to be made. The data thus recorded is transmitted to the grinder.
  • the latter generally has three numerical axes and can therefore precisely control the trajectory during machining.
  • a digital grinder is a machine significantly more expensive than a template grinder, especially because of the player associated with it.
  • this reader is on the one hand sensitive and fragile and on the other hand difficult to repair.
  • the present invention therefore aims to provide a method of producing a spectacle lens or an ophthalmic lens which uses only reliable tools that can be easily repaired while also providing control at the machining level. digital grinders.
  • This method makes it possible to use a tool placed on the first axis of the grinder to "read" the template taking place at the second axis.
  • This tool is used as a probe and allows the means used to control the grinder to know the exact shape of the template used. Knowing this form, these control means can act on the various tools of the grinder to produce an ophthalmic lens having the same contour as the template.
  • the tool used to come into contact with the template is for example a wheel used subsequently for machining the blank.
  • the grinding wheel is preferably left free in rotation about its axis during steps b) and c) above.
  • the tool used can also be a specific tool used as a probe.
  • An embodiment of the method according to the invention provides that for step d), one comes after each recording to move the tool and the template away from each other, then turn the template in a predetermined incrementation, and then postpone contacting the template with the tool to make the next recording.
  • Such a grinder is known to those skilled in the art.
  • An advantage of the method according to the invention comes from the fact that it can be implemented with a grinder of the prior art.
  • a grinder is usually used in conjunction with a reading system that digitizes the shape of a mounting circle. With the implementation of the method according to the invention, this reading system becomes useless. It is therefore possible to obtain a machine for machining ophthalmic lenses at a lower cost while still enjoying the advantages of a digital machine.
  • steps b) to d) corresponding to the reading of the template the template rests on the tool placed on the first axis , that the template is rotated about its axis and that the relative position of the two axes is measured by detecting the movements of the rocker about its axis.
  • This detection can be done for example by using an angular displacement sensor placed on the pivot axis of the rocker.
  • the present invention also relates to a machine for machining an ophthalmic lens according to claim 8.
  • the first axis of this machine also carries a probing tool intended to come into contact with a jig mounted between the two shafts of the second axis, and the drive means of the movable nut comprise an encoder for precisely knowing the position of the nut on its fourth axis.
  • the probing tool has for example the shape of a smooth disk in the form of a grinding wheel mounted on the first axis.
  • the present invention also relates to another machine for machining an ophthalmic lens of the aforementioned type, characterized in that a pressure sensor is provided between the stop and the counter-stop of the rod and rocker.
  • the present invention allows the use of a digital grinder of a type known as a template reader and as a grinder.
  • a digital grinder of a type known as a template reader and as a grinder.
  • the following description presents a grinder that can be used for the implementation of the present invention and then a method according to the invention is explained in connection with the described grinder.
  • FIG 1 is partially and schematically represented a machine 1 for machining an ophthalmic lens 2. It is a grinder for contouring the lens 2, whose contour is intended to match, after grinding, with that of one of the circles of a spectacle frame (not shown).
  • the grinder 1 comprises two support shafts 4, 4 'vis-à-vis between which is held by pinching the lens 2. These support shafts 4, 4' are jointly driven in rotation by a first motor (not shown) around a first common axis A1. However, only one of them could be trained, while the other would be free to rotate.
  • This rocker 5 is pivotally mounted on a frame (not shown) of the grinder 1, about a second axis A2 parallel to the first axis A1.
  • the grinder 1 further comprises a grinding wheel 6 located at the right of the support shafts 4, 4 'and driven in rotation about a third axis A3 parallel to the preceding A1, A2.
  • the movement of the rocker 5 aims to move the support shafts 4, 4 'closer to or away from the grinding wheel 6, so as to give the outline of the lens 2 the desired shape, this shape being generally non-cirrular.
  • the first motor is for example mounted on the rocker 5, the rotational movement of this first motor being transmitted to the support shafts 4, 4 'by motor shafts of axis A2, via transmission belts.
  • This transmission could however be achieved by means of a gear mechanism.
  • This grinder is numerically controlled. It comprises, according to an embodiment illustrated on the figure 1 a link 12 mounted articulated on the one hand by a first end 13 to the frame about a second axis A2 of the latch 5 and, secondly, by a second end 14 around a fourth axis A4 parallel to the previous A1, A2, A3, to a nut 15 itself mounted to move in translation along a fifth axis A5, commonly called restitution axis, perpendicular to the first axis A1.
  • the translational mobility of the nut 15 is illustrated on the figure 1 by the double arrow referenced X.
  • the nut 15 is threaded and is engaged by screwing with a threaded rod 16 extended along the fifth axis A5 and around which it is rotated by a second motor M2.
  • a contact sensor 17 for example electromagnetic, optical or, more simply, electrical type.
  • the lens 2 bears against the grinding wheel 6 under the effect of the weight of the lever 5 conjugated to the tensile force of a spring (not shown) tending to bias the lever 5 towards the grinding wheel 6.
  • a control unit programmed for this purpose coordinates these operations and controls in particular the second motor M2.
  • the angular position of the lens 2 around the first axis A1 and the angular position of the link 12 about the second axis A2 are known at every moment.
  • the angular position of the link 12 corresponds, at each instant, to the final position of the lever 5, corrected for the angular difference between the link 12 and the latch 5 when they are in contact.
  • the machining of the lens 2 is decreed completed when the support of the rocker 5 against the link 12 has been detected on a complete turn of the lens 2 around the first axis A1, the contour of the lens 2 having now reaches the desired shape of the circle of the previously mentioned mount.
  • This template 2 ' is a template such as those used in the template grinders of the prior art, mentioned in the preamble of this document.
  • a template 2 ' has an outline whose shape corresponds with that of one of the circles of an eyeglass frame.
  • this template 2 ' has two parallel flat faces and not convex and / or concave faces such as the ophthalmic lens 2 to be produced.
  • the rocker 5 is lowered until the jig 2' comes into contact with the wheel 6.
  • This contact position is then identified with the rod 12.
  • the motor M2 is actuated to move the nut 15 on the threaded rod 16 until the contact 17 placed on the rod 12 comes to meet the counter-stop 17 'provided on the rocker 5.
  • the position corresponding to this contact is identified by an encoder 18 associated with the motor M2. This position is stored in the control unit associated with the grinder.
  • the nut 15 is then moved downwards (the up / down orientations are made here with reference to the drawing) This also corresponds to the usual orientation of a grinder such as that shown in the drawing but it could be of course have a different orientation) and the rocker 5 is raised upward so that the template 2 'is no longer in contact with the wheel 6.
  • the template 2' is then rotated about the axis A1 by the support shafts 4, 4 'of a predetermined angular value, for example 0.5 °.
  • the template 2 ' is then again brought into contact with the grinding wheel 6 and this position is recorded by moving the rod 12 via the nut 15 driven by the motor M2.
  • the driving unit of the grinder thanks to the values provided by the encoder 18, can calculate the contour of the template 2 '. The latter can then be removed from the axis A1 and an ophthalmic lens blank 2 takes its place.
  • the machining of this blank to obtain the ophthalmic lens 2 is performed in a conventional manner as it is machined with a digital grinder.
  • the data used for this grinding are the data calculated after reading the template 2 '. As usually done, it probes the front and rear faces of the blank set up on the axis A1.
  • the blank is then machined and possibly bevelled along a path calculated from the data recorded during the reading phase of the template 2 '.
  • This first machining operation provides for example the right lens of the corresponding spectacle frame. In the same way, thanks to the recorded and memorized data, one carries out the machining and possibly beveling of the left glass.
  • the method according to the invention makes it possible to use a digital grinder as a template reader. It is therefore no longer necessary to associate with such a grinder a specific reader which digitizes the shape of an eyeglass frame. Thanks to the economy of the reader generally associated with a digital grinder, it is possible at a much lower cost, with a method according to the invention, to benefit from all the advantages of digital. Indeed, the driving unit knowing the shape to be given to the blank to be machined can perform all the machining operations to obtain a fully finished spectacle lens (with bevel, etc ).
  • the method according to the invention can be implemented with a conventional digital grinder without modifying it.
  • a grinder can also be adapted to the method according to the invention.
  • a wheel set 6 instead of performing the reading of a template with the grinding wheel 6 which subsequently performs the machining of the blank, it is conceivable to equip a wheel set 6 with a disc 19 shown in FIG. dotted on the figure 3 .
  • This disc is for example a smooth disc of geometry identical to that of a grinding wheel 6. It can also provide on this disc the presence of at least one sensor (not shown) to detect the contact with the template 2 '.
  • This sensor is then advantageously a pressure sensor.
  • Such a pressure sensor can of course also take place between the rod 12 and the rocker 5 in addition to or instead of the sensor. In the case where two sensors are present, one of them (the pressure sensor for example) can be used for the phase concerning the reading of the template 2 'and the other (the sensor for example) can be used at during the machining of the blank.
  • the frame is supplied without a template.
  • This is for example frames known under the trademark "NYLORS” or frames used with pierced lenses for which each glass is pierced on the one hand to receive a branch and on the other hand to be connected to the other glass of glasses by a "nose".
  • NNLORS the trademark of pierced lenses
  • presentation glasses that are provided with such frames.
  • template the expression "template” in this document therefore also relates to such presentation glasses.
  • the present invention is not limited to the process described above by way of non-limiting example and to the variants mentioned. It also relates to all embodiments within the reach of the skilled person within the scope of the claims below.
  • the present invention may be implemented with a grinder of a type different from that described and shown in the drawing.
  • the reading of the template can also be done in a different way.
  • the template is placed on its axis, instead usually intended to receive a blank to be machined.
  • the wheel train is moved so that the tool for reading the shape of the template is facing it.
  • the flip-flop is then moved so that the template comes into contact with the tool used for reading.
  • the template is then rotated about its axis. This axis is carried by the rocker.
  • the axes of the rocker and the wheel train are fixed axes on the frame of the grinder.
  • the rocker will oscillate about its axis according to the variations of radius of the jig.
  • the rocker will oscillate about its axis according to the variations of radius of the jig.

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

Claims (10)

  1. Verfahren zur maschinellen Bearbeitung einer ophthalmischen Linse (2) mit Hilfe einer digitalen Schleifmaschine (1) oder dergleichen, die eine einerseits eine erste Achse (A3), auf die mindestens eine Schleifscheibe (6) montiert ist, und andererseits eine zweite Achse (A1) aufweist, um die herum zwei einander gegenüberliegende Trägerwellen (4, 4') angetrieben werden, zwischen denen ein maschinell zu bearbeitender Rohling durch Einklemmen gehalten wird, um die gewünschte ophthalmische Linse (2) zu erhalten, dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    a) Aufbringen einer Schablone (2') auf die zweite Achse (A1) zwischen den Trägerwellen (4, 4'), wobei die Schablone (2') der zu erhaltenden Linse entspricht,
    b) Inkontaktbringen der Schablone (2') mit einem auf der ersten Achse (A3) angeordneten Werkzeug (6; 19),
    c) Speichern der relativen Stellung der zwei Achsen (A1, A3),
    d) Wiederholen der Schritte b) und c), um ein einzelnes oder durchgehendes Ablesen der ganzen Schablone (2') durchzuführen,
    e) Bestimmen der Form der Schablone (2') durch Berechnung,
    f) Entfernen der Schablone (2'),
    g) Anordnen eines maschinell zu bearbeitenden Rohlings,
    h) maschinelle Bearbeitung des Rohlings, und
    i) mögliche maschinelle Bearbeitung eines zweiten Rohlings.
  2. Maschinelles Bearbeitungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Werkzeug, das verwendet wird, um mit der Schablone (2') in Kontakt zu kommen, eine Schleifscheibe (6) ist, die zur maschinellen Bearbeitung des Rohlings verwendet wird.
  3. Maschinelles Bearbeitungsverfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Schleifscheibe (6) während der Schritte b) und c) frei um ihre Achse (A3) drehbar gelassen wird.
  4. Maschinelles Bearbeitungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Werkzeug, das verwendet wird, um mit der Schablone (2') in Kontakt zu kommen, ein spezifisches Werkzeug (19) ist, das als Taster verwendet wird.
  5. Maschinelles Bearbeitungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass für den Schritt d) nach jeder Speicherung das Werkzeug (6, 19) und die Schablone (2') voneinander entfernt werden, dann die Schablone (2') gemäß einer vorbestimmten Inkrementierung gedreht wird, dann die Schablone (2') wieder mit dem Werkzeug (6, 19) in Kontakt gebracht wird, um die folgende Speicherung durchzuführen.
  6. Maschinelles Bearbeitungsverfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die verwendete Schleifmaschine (1) von der Art ist, die aufweist:
    eine erste Achse (A3), auf die mindestens eine Schleifscheibe (6) montiert ist,
    eine zweite Achse (A1) parallel zur ersten Achse (A3) und auf die zwei Wellen (4, 4') zentriert sind, die in gegenseitiger Verlängerung angeordnet und dazu bestimmt sind, zwischen sich einen maschinell zu bearbeitenden Rohling zu halten,
    Antriebseinrichtungen für mindestens eine der zwei Wellen (4, 4'),
    eine Kippvorrichtung (5), die um eine dritte Achse (A2) parallel zu den zwei ersten (A3, A1) schwenkbar montiert ist und die Wellen (4, 4') trägt, die dazu bestimmt sind, den maschinell zu bearbeitenden Rohling zu halten und anzutreiben,
    einen Schwingarm (12), der zwischen einem Ende der die Kippvorrichtung (5) tragenden dritten Achse (A2) und einer Muffe (15) montiert ist, die auf eine vierte Achse (A5) lotrecht zu den drei vorhergehenden beweglich montiert ist,
    Antriebseinrichtungen (M2) der beweglichen Muffe (15), und
    ein Anschlag- und Gegenanschlagsystem (17, 17'), das einerseits auf den Schwingarm (12) und andererseits auf die Kippvorrichtung (5) montiert ist, um die Bewegung des von der Kippvorrichtung (5) getragenen Rohlings in Richtung der Schleifscheibe (6) zu begrenzen.
  7. Maschinelles Bearbeitungsverfahren nach Anspruch 6, dadurch gekennzeichnet, dass während der Schritte b) bis d) entsprechend dem Ablesen der Schablone (2') die Schablone (2') auf dem auf der ersten Achse (A3) angeordneten Werkzeug (6, 19) ruht, dass die Schablone (2') um ihre Achse (A1) in Drehung versetzt wird, und dass die relative Stellung der zwei Achsen (A1, A3) gemessen wird, indem die Verschiebungen der Kippvorrichtung (5) um ihre Achse (A2) erfasst werden.
  8. Maschine (1) zur maschinellen Bearbeitung einer ophthalmischen Linse (2) von der Art, die aufweist:
    eine erste Achse (A3), auf die mindestens eine Schleifscheibe (6) montiert ist,
    eine zweite Achse (A1) parallel zur ersten, auf die zwei Wellen (4, 4') zentriert sind, die in gegenseitiger Verlängerung angeordnet und dazu bestimmt sind, zwischen sich einen maschinell zu bearbeitenden Rohling zu halten,
    Antriebseinrichtungen für mindestens eine der zwei Wellen (4, 4'),
    eine Kippvorrichtung (5), die um eine dritte Achse (A2) parallel zu den zwei ersten schwenkbar montiert ist und die Wellen (4, 4') trägt, die dazu bestimmt sind, den maschinell zu bearbeitenden Rohling zu halten und anzutreiben,
    einen Schwingarm (12), der zwischen einem Ende der die Kippvorrichtung (5) tragenden dritten Achse (A2) und einer Muffe (15) montiert ist, die auf eine vierte Achse (A5) lotrecht zu den drei vorhergehenden beweglich montiert ist,
    Antriebseinrichtungen (M2) der beweglichen Muffe (15), und
    ein Anschlag- und Gegenanschlagsystem (17, 17'), das einerseits auf den Schwingarm (12) und andererseits auf die Kippvorrichtung (5) montiert ist, um die Bewegung des von der Kippvorrichtung (5) getragenen Rohlings in Richtung der Schleifscheibe (6) zu begrenzen,
    dadurch gekennzeichnet, dass die erste Achse (A3) ebenfalls ein Tastwerkzeug (19) trägt, das dazu bestimmt ist, mit einer zwischen den zwei Wellen (4, 4') der zweiten Achse (1) montierten Schablone (2') in Kontakt zu kommen, und dass die Antriebseinrichtungen (M2) der beweglichen Muffe (15) einen Codierer (18) aufweisen, der es ermöglicht, die Stellung der Muffe (15) auf ihrer vierten Achse (A5) genau zu kennen.
  9. Maschine nach Anspruch 8, dadurch gekennzeichnet, dass das Tastwerkzeug (19) die Form einer glatten Scheibe hat, die die Form einer auf die erste Achse (A3) montierten Schleifscheibe aufgreift.
  10. Maschine (1) nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, dass ein Druckfühler zwischen dem Anschlag (17) und dem Gegenanschlag (17') des Schwingarms (12) und der Kippvorrichtung (5) vorgesehen ist.
EP04717673.0A 2003-03-07 2004-03-05 Verfahren zur maschinellen bearbeitung einer ophthalmischen linse und bearbeitungsvorrichtung zur durchführung des verfahrens Expired - Fee Related EP1601496B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0302869A FR2851947B1 (fr) 2003-03-07 2003-03-07 Procede d'usinage d'une lentille ophtalmique.
FR0302869 2003-03-07
PCT/FR2004/000531 WO2004080652A1 (fr) 2003-03-07 2004-03-05 Procede d’usinage d’une lentille ophtalmique et machine d’usinage pour mettre en oeuvre la methode precedente

Publications (2)

Publication Number Publication Date
EP1601496A1 EP1601496A1 (de) 2005-12-07
EP1601496B1 true EP1601496B1 (de) 2014-10-29

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EP (1) EP1601496B1 (de)
JP (1) JP2006519706A (de)
KR (1) KR20050103971A (de)
CN (1) CN1758988A (de)
FR (1) FR2851947B1 (de)
WO (1) WO2004080652A1 (de)

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CN102463512B (zh) * 2010-11-12 2013-09-11 深圳市蓝思达科技有限公司 双砂轮仿形机
WO2014173781A1 (en) * 2013-04-23 2014-10-30 Essilor International (Compagnie Generale D'optique) Method for controlling a manufacturing device used in an optical lens manufacturing process
CN108188866A (zh) * 2018-03-21 2018-06-22 望江县天长光学仪器有限公司 一种镜片抛光机
JP7020711B2 (ja) * 2020-05-07 2022-02-16 株式会社タクボ精機製作所 眼鏡レンズ形状データ取得方法及びレンズ加工装置

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CA1264556A (en) * 1985-05-08 1990-01-23 Georges Zoueki Lens and pattern holder
ES2017183A6 (es) * 1989-10-27 1991-01-01 Indo Int Sa Maquina biseladora para lentes.
FR2734505B1 (fr) * 1995-05-24 1997-08-01 Essilor Int Gabarit de calibrage pour l'etalonnage d'une meuleuse pour lentille ophtalmique, et procede d'etalonnage correspondant

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WO2004080652A1 (fr) 2004-09-23
EP1601496A1 (de) 2005-12-07
JP2006519706A (ja) 2006-08-31
CN1758988A (zh) 2006-04-12
KR20050103971A (ko) 2005-11-01
FR2851947B1 (fr) 2006-09-22
FR2851947A1 (fr) 2004-09-10

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