EP1606079B1 - Maschine zum schleifen von optischen linsen - Google Patents

Maschine zum schleifen von optischen linsen Download PDF

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Publication number
EP1606079B1
EP1606079B1 EP04742359A EP04742359A EP1606079B1 EP 1606079 B1 EP1606079 B1 EP 1606079B1 EP 04742359 A EP04742359 A EP 04742359A EP 04742359 A EP04742359 A EP 04742359A EP 1606079 B1 EP1606079 B1 EP 1606079B1
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EP
European Patent Office
Prior art keywords
axis
tool
relative
translation
lens
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.)
Expired - Lifetime
Application number
EP04742359A
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English (en)
French (fr)
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EP1606079A1 (de
Inventor
Jean-Marc Meunier
Laurent Sroka
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.)
Luneau Technology Operations SAS
Original Assignee
Briot International SA
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Filing date
Publication date
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Publication of EP1606079A1 publication Critical patent/EP1606079A1/de
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Publication of EP1606079B1 publication Critical patent/EP1606079B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools

Definitions

  • the present invention relates to a machine for grinding optical glasses of the type described in the preamble of claim 1.
  • the main purpose of the invention is to overcome these drawbacks, that is to say to have a machine that allows to simply perform the bevelling, creasing and / or drilling of optical glasses with a quality of constant operation regardless of the curvature of the lens, and which is compact.
  • the subject of the invention is a grinding machine of the aforementioned type, characterized in that the control means are adapted to retract the tool-holding shaft by controlling said angle of inclination.
  • the known machines of the aforementioned type require complex mechanisms for moving the tool holder assembly relative to the lens holder.
  • Another object of the invention is to obtain a grinding machine of the aforementioned type, whose structure is simplified.
  • the machine of the aforementioned type comprises means for relative displacement of the tool shaft relative to the translational lens support in translation along the third axis when the tool is in position.
  • said relative displacement means comprise relative translation means of the tool-carrying shaft relative to the second axis in a first direction, parallel to the second axis, means for pseudo-translation of the lens support relative to the second axis in a second direction perpendicular to the second axis, and synchronization means of said translation means and pseudo-translation.
  • the grinding machine shown on the Figures 1 to 5 is intended to produce a beveled and beveled optical glass, as well as creasing and drilling operations from a generally circular lens blank.
  • This grinding machine comprises a frame 11, a grinding assembly 13, a lens holder 15, a tool holder assembly 17 and a control unit 19.
  • the grinding assembly 13 comprises a wheel set 21 rotatably mounted about a first horizontal axis A-A 'in a grinding wheel carrier 22 and rotated by a grinding motor (not shown).
  • the set of wheels 21 is composed of several grinding wheels 21A to 21D juxtaposed.
  • the grinding wheels are associated with a type of glass to be grinded and at different stages of the grinding process: a grinding wheel 21A for roughing mineral glasses, a grinding wheel 21B for roughing synthetic glasses, a finishing grinding wheel with 21C beveling provided with a circular groove 23, and a grinding wheel 21 D with beveling.
  • This wheel set 21 may optionally be equipped with non-beveling finishing or polishing wheels.
  • This set of wheels 21 is integrally mounted on a grinding wheel shaft 25, itself rotatably mounted in the support 22 around the first axis A-A '.
  • the lower portion 27 of the grinding wheel support 22 is slidably mounted in an axial direction parallel to the first axis A-A 'on a sliding bar 29.
  • Means (not shown) allow translation of the grinding assembly 13 in this axial direction by sliding the grinding wheel support 22 along the slide bar 29.
  • the lens holder 15 comprises a carriage 31 mounted to pivot on the frame 11 and provided with two half-shafts 33A and 33B adapted to grip the lens blank 35, a motor 37 for rotating the lens blank 35 , and means 39 for positioning the carriage 31 radially relative to the first axis A-A '.
  • the carriage is articulated by a longitudinal edge 41 around a tilting shaft 43 arranged parallel to the first axis A-A '.
  • the two half-shafts 33A and 33B are mounted along the other longitudinal edge 45 of the carriage 31. These half-shafts 33A and 33B are arranged along a second horizontal axis BB 'which, during grinding, is parallel to the first axis A-A '. Moreover, these half-shafts 33A and 33B are provided with free ends 47A and 47B facing one another, adapted to grip the lens blank 35.
  • the drive motor 37 of the lens blank 35 drives in rotation about the second axis B-B 'the half-shaft 33B and the half-shaft 33A by a transmission mechanism (not shown).
  • the radial positioning means 39 of the carriage 31 with respect to the first axis AA ' comprise a drive mechanism 51 and a guide rod or key 53.
  • the drive mechanism 51 comprises a worm 55 driving in cooperation with a nut 57.
  • the screw 55 is rotatably mounted on the frame 11 and disposed in a radial direction perpendicular to the axial direction. In the example shown on the Figure 2 the drive screw 55 is vertical.
  • This drive screw 55 is rotated by a motor 59 integral with the frame 11.
  • the tool-holder assembly 17 comprises a support 71 provided with a projecting connecting arm 73, a tool-holding shaft 75, a motor 77 driving in rotation with the tool-holding shaft 75, and means 79 for actuating the tool shaft 75.
  • the support 71 is of generally cylindrical shape. It is rotatably mounted on the grinding wheel support 22 about a horizontal pivot axis DD 'perpendicular to the first axis A-A'.
  • the tool shaft 75 is rotatably mounted about a third axis CC 'at the free end of the connecting arm 73. In the example illustrated in FIG. Figures 1 to 5 the tool shaft 75 remains in the vertical plane passing through the first axis A-64 '.
  • This shaft 75 carries a counter-bevel grinding wheel 81, a grinding wheel 83, and a drilling forest 85.
  • the counter-beveling wheel 81 has a diameter much smaller than that of the wheels 21A to 21D of the wheel set. As illustrated on the Figure 5 , this counter-beveling grinding wheel externally has a cylindrical median surface 87, framed by two frustoconical surfaces 89 and 91 converging away from this surface. As illustrated on the Figure 5 it is a surface 89 having a relatively small apex half-angle, for example of the order of 35 °, and an opposing surface 91 having a relatively large apex half-angle, e.g. °.
  • the creasing wheel 83 comprises a single cylindrical central surface 92 of small width.
  • the width of the cylindrical central surface is between 0.5 and 1.6 mm.
  • the drilling forest 85 is mounted at the free end of the tool shaft 75 and is aligned along the third axis C-C '.
  • the rotational drive motor 77 of the tool shaft 75 is connected to this shaft 75 by transmission means comprising in particular a pulley 93 and a belt 95 ( Figure 1 ).
  • the actuating means 79 of the tool shaft 75 comprise ( Figure 1 ) an actuating motor 101 whose output shaft 103 is provided at its end with a worm 105. This worm 105 cooperates with a toothed tangent wheel integral with the support 71.
  • These actuating means 79 rotate the support 71 about the pivot axis over an angular displacement of at least 30 °, and preferably 180 °.
  • the angle formed between the third axis CC 'and the first axis AA' or the second axis BB ' varies at least between 0 and 30 ° and preferably between 0 and 180 °.
  • the control unit 19 makes it possible to control, on the one hand, the displacement of the wheel support 22 in the axial direction and, on the other hand, the displacement of the carriage 31 around the articulation shaft 43.
  • this unit control 19 coordinates the relative movement of the lens holder relative to the wheel set.
  • this control unit is provided with synchronization means (not shown) for simultaneously controlling the axial displacement of the wheel support 22 and the movement of the carriage 31 around the articulation shaft, according to a predefined control law .
  • the support 71 is oriented in such a way that the arm 73 and the tool shaft 75 are in a retracted position under the grinding wheel train 21.
  • the space above the grinding wheels 21A to 21D is totally cleared.
  • the blank 35 is wedged between the two ends 47A and 47B of the half-shafts 33A and 33B by an adapter suitably positioned on the blank.
  • the motor for rotating the grinding wheels 21A to 21D is actuated.
  • the mill train 21 is then rotated about the first axis A-A 'by this motor.
  • the control unit 19 controls the axial displacement means of the wheel support 22 and the radial displacement means 39 of the carriage 31 for positioning the lens blank 35 in contact with the roughing wheel 21A.
  • the rotational driving motor 37 of the lens blank 35 with respect to the second axis B-B ' is then actuated to rotate this blank 35 about this second axis B-B'.
  • the distance between the first axis AA 'and the second axis BB' is adjusted according to the angular position of the blank 35 around the second axis B-B ', depending on the shape of the frame. glasses on which the lens will be mounted after its treatment.
  • the lens is then fed to the 21C bevelled finishing wheel.
  • the blank then has its definitive outline.
  • a drilling operation is then performed.
  • the wheel support 22 is positioned at the end of the axial stroke.
  • This limit switch corresponds to a position of the grinding wheel support 22 at the far right of the Figure 1 .
  • the carriage 31 is moved away from the grinding wheel 21 by displacing the guide rod 53 upwards to a radial end of travel.
  • the actuating motor 101 of the tool holder assembly 17 is then activated.
  • the rotation of the output shaft 103 of this motor 101 rotates the endless screw 105 about an axis parallel to the first axis A-A '.
  • This worm 105 cooperates with the toothed wheel provided on the support 71.
  • the support 71 is then rotated about its pivot axis D-D '.
  • This rotational movement of the support 71 causes the tool shaft 75 to pivot about the pivot axis DD 'in the vertical plane passing through the axis A-A' of the retracted position represented on the Figure 3 located under the grinding wheel, at an active position shown on the Figure 4 , located above the grinding wheel.
  • the control unit 19 determines the angle formed by the tangent to the external or internal surface of the lens blank 35 at the piercing point of this blank 35 and the direction perpendicular to the second axis BB 'which passes through this piercing point. This angle is designated by ⁇ on the Figure 5 .
  • the angle ⁇ depends on the curvature of the lens blank 35.
  • the actuating motor 101 of the tool holder assembly 17 is deactivated when the angle formed by the third axis CC 'and the second axis BB' is equal to this angle ⁇ .
  • the axial displacement means of the support 22 and the radial displacement means 51 of the carriage 31 are then controlled to bring the end of the forest 85 into contact with the piercing point ( Figure 4 ).
  • the forest 85 is then perpendicular to the outer surface of the lens blank 35, regardless of the curvature of this blank.
  • the rotational drive motor 77 of the tool shaft 75 is then activated.
  • the axial displacement means of the support and the radial displacement means 39 of the carriage 31 are then controlled by the synchronization means of the control unit 19 to move in translation the tool-holding shaft 75 along the third axis CC 'in maintaining the inclination of this third axis CC 'relative to the second axis BB' constant and equal to ⁇ , during the entire drilling operation. More specifically, during drilling, the support 22 moves to the left and the carriage 31 moves downwards so that the piercing point moves exactly along the axis C-C '.
  • the angle formed by the third axis CC 'and the second axis BB' is controlled before a bevelling operation so that the angle of attack between the surface of the counter-beveling wheel 81 and the sharp edge machining the lens blank 35 is equal to a predetermined value regardless of the curvature of this blank.
  • the angle of inclination of the third axis CC 'relative to the second axis BB' is controlled before a creasing operation so that the median plane P of the creasing wheel 85 is for example parallel to the tangent to the convex surface of the lens blank at the sharp edge, or parallel to an intermediate direction between the tangents of the convex and concave surfaces.
  • This machine makes it possible to carry out all these operations in an economical and efficient way.

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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 (11)

  1. Maschine zum Schleifen von optischen Gläsern, umfassend:
    - ein Schleifwerk (21), das drehbar um eine erste Achse (A-A') montiert ist;
    - eine Linsen-Trägervorrichtung (15), die mit Mitteln (37) zum Drehantrieb (35) der Linse um eine zweite Achse (B-B') ausgerüstet ist, die zumindest während des Schleifens im Wesentlichen parallel zur ersten Achse (A-A') liegt,
    - Mittel (13, 39) zur relativen axialen und radialen Positionierung der Linsen-Trägervorrichtung (15) in Bezug auf das Schleifwerk (21);
    - eine Werkzeugträger-Anordnung (17), die mindestens ein Werkzeug (81; 83; 85), das mit einer um eine dritte Achse (C-C') rotierenden Merkzeugträgerwelle (75) verbunden ist, Mittel (79) zur Betätigung der Werkzeugträgerwelle (75), die geeignet sind, das Werkzeug (81; 83; 85) zwischen einer verstauten Stellung und einer aktiven Stellung in der Nähe der zweiten Achse (B-B) zu bewegen, umfasst, wobei die dritte Achse (C-C') eine variable Neigung in Bezug auf die zweite Achse (B-B') aufweist,
    wobei die Werkzeugträger-Anordnung (17) au-βerdern Mittel (79) zur steuerung des Neigungswinkels (α) der dritten Achse (C-C') in Bezug auf die zweite Achse (B-B'), wenn das Werkzeug (81; 83; 85) zu der Linse (35) beabstandet ist, über einen Wert, der von dem Wert der Krümmung der Linse abhängt,
    in der die Steuermittel (79) geeignet sind, die Werkzeugträgerwelle (75) durch Steuerung des Neigungswinkels (α) zu verstauen,
    dadurch gekennzeichnet, dass die Steuermittel (79) geeignet sind, die Welle (75) unter das Sehleifwerk (21) zu verstauen, wobei sie vor letzterem vorbei geführt wird.
  2. Schleifmaschine nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel (13, 39) zur relativen translatorischen Bewegung der Merkzeugträgerwelle (75) in Bezug auf die Linsen-Trägervorrichtung (15) gemäß der dritten Achse (C-C') aufweist, wenn das Werkzeug (81; 83; 85) in aktiver Stellung ist.
  3. Schleifmaschine nach Anspruch 2, dadurch gekennzeichnet, dass die Mittel (13, 39) zur relativen Bewegung Mittel (13) zur relativen translatorischen Bewegung der Werkzeugträgerwelle (75) in Bezug auf die zweite Achse (B-B') gemäß einer ersten Richtung, insbesondere gemäß einer Richtung parallel zur zweiten Achse (B-B'), Mittel (53) zur relativen Pseudo-Translation der Werkzeugträgerwelle (75) in Bezug auf die zweite Achse (B-B') gemäß einer zur ersten Richtung unterschiedilchen zweiten Ricthtung, insbesondere gemäβ einer Richtung senkrecht zur zweiten Achse (B-B') und Mittel (19) zur Synchronisation der Mittel (39) zur translatorischen Bewegung und zur Pseudo-Translation umfasst.
  4. Schleifmaschine nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass dass Schleifwerk (22) einen Schleifscheibenträger (22) aufweiset, der mit Mitteln (27, 29) zur axialen translatorischen Bewegung ausgerüstet ist, und dass die Werkzeugträger-Anordnung (17) translatorisch mit dem Schleifscheibenträger (22) verbunden ist.
  5. Schleifmaschine nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Linsen-Trägervorrichtung (15) mit Mitteln (39) zur radialen Pseudo-Translation ausgerüstet ist.
  6. Schleifmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Werkzeugträger Anordnung (17) drehbar auf dem Schleifscheibenträger (22) um eine Achse (D-D') senkrecht zur ersten Wachse (A-A') montiert ist.
  7. Schleifmaschine nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Steuermittel (79) den Neigungswinkel (α) der dritten Achse (C-C') in Bezug auf die zweite Achse (B-B') zwischen 0 und 30° in der aktiven Stellung der (75) steuern,
  8. Schleifmaschine nach einem beliebigen der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mindestens ein Werkzeug eine Zusatzschleifscheibe (81) zum Gegenfasen ist.
  9. Schleifmaschine nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Werkzeug ein Rillenschleifer (83) ist.
  10. Schleifmaschine nach einem beliebigen des vor hergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Werkzeug ein Bohrwerkzeug (85) ist.
  11. Schleifmaschine nach einem beliebigen der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sie Mittel (13, 39) zur relativen translatorischen Bewegung der Merkzeugträgerwelle (75) in Bezug auf die Linsen-Trägervorrichtung (15) gemäß einer dritten Achse (C-C') umfasst, wenn das Werkzeug (81; 83; 85) in aktiver Stellung ist, und dass die Mittel zur relative Bewegung (13, 39) Mittel (13) zur relativen translatorischen Bewegung der Werkzeugträgerwelle (75) in Bezug auf die zweite Achse (B-B') gemäß einer ersten Richtung, parallel zur zweiten Achse (B-B'), Mittel zur Pseudo-Translation der Linsen-Trägervorrichtung (15) in Bezug auf die zweite Achse (B-B') gemäß einer zweiten Richtung, senkrecht zur zweiten Achse (B-B') und Mittel (19) zur Synchronisation, der Mittel zur translatorischen Bewegung (13) und zur Pseudo-Translation (39) umfassen.
EP04742359A 2003-03-27 2004-03-25 Maschine zum schleifen von optischen linsen Expired - Lifetime EP1606079B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0303792A FR2852878B1 (fr) 2003-03-27 2003-03-27 Machine de meulage de verres optiques.
FR0303792 2003-03-27
PCT/FR2004/000754 WO2004087374A1 (fr) 2003-03-27 2004-03-25 Machine de meulage de verres optiques

Publications (2)

Publication Number Publication Date
EP1606079A1 EP1606079A1 (de) 2005-12-21
EP1606079B1 true EP1606079B1 (de) 2011-12-21

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Family Applications (1)

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EP04742359A Expired - Lifetime EP1606079B1 (de) 2003-03-27 2004-03-25 Maschine zum schleifen von optischen linsen

Country Status (5)

Country Link
US (1) US7281967B2 (de)
EP (1) EP1606079B1 (de)
CN (1) CN100519070C (de)
FR (1) FR2852878B1 (de)
WO (1) WO2004087374A1 (de)

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FR2870471B1 (fr) * 2004-05-18 2006-08-25 Briot Internat Sa Procede de rainage ou de contre-biseautage de la peripherie d'une lentille ophtalmique
JP2008512266A (ja) * 2004-09-08 2008-04-24 ナショナル オプトロニクス インコーポレイテッド レンズにドリル作業する装置及びその方法
FR2876936B1 (fr) * 2004-10-21 2008-06-13 Briot Internat Sa Machine de percage de verres optiques et procede associe
FR2884163B1 (fr) * 2005-04-07 2007-07-06 Briot Internat Sa Machine de meulage de verres optiques munie d'une meule de finition inclinee et verre optique correspondant
FR2885545B1 (fr) * 2005-05-13 2007-08-10 Briot Internat Sa Outil d'etalonnage et machine de meulage comportant un tel outil
JP2007181889A (ja) * 2006-01-05 2007-07-19 Nidek Co Ltd 眼鏡レンズ加工システム
FR2900853B1 (fr) * 2006-05-10 2009-01-23 Essilor Int Procede et dispositif de detourage d'une lentille glissante par decoupage de ladite lentille
FR2904703B1 (fr) * 2006-08-04 2008-12-12 Essilor Int Paire de lunettes ophtalmiques et procede de formation d'une nervure peripherique d'emboitement sur le chant d'une lentille
FR2906746B1 (fr) * 2006-10-10 2009-05-22 Essilor Int Dispositif d'usinage de lentilles ophtalmiques comprenant une pluralite d'outils d'usinage disposes sur un module orientable
FR2912335B1 (fr) * 2007-02-13 2009-04-17 Essilor Int Machine de detourage d'une lentille de lunettes,pourvue d'un porte-outils tournant sur lequel sont montes plusieurs outils de travail
KR101079037B1 (ko) * 2008-09-30 2011-11-02 주식회사 휴비츠 드릴링 장치를 구비한 안경렌즈 가공장치
JP5372628B2 (ja) * 2009-07-08 2013-12-18 株式会社ニデック 眼鏡レンズ加工装置及び該装置に使用されるヤゲン加工具
FR2962676B1 (fr) * 2010-07-13 2012-08-03 Essilor Int Procede de detourage d'une lentille ophtalmique de lunettes comportant un film de revetement.
JP5976270B2 (ja) 2010-09-30 2016-08-23 株式会社ニデック 眼鏡レンズ加工装置
FR2972382B1 (fr) * 2011-03-10 2013-04-26 Briot Int Machine de meulage de verres optiques et procede de meulage associe
FR3002871B1 (fr) * 2013-03-08 2015-03-13 Essilor Int Dispositif de detourage de lentilles ophtalmiques
BE1020915B1 (nl) * 2013-07-02 2019-09-16 Optidrive Nv Methode en installatie voor het afschuinen van hoeken.
FR3008914B1 (fr) * 2013-07-26 2015-09-04 Essilor Int Procede et machine de gravure de lentilles optiques
US20160258097A1 (en) * 2015-03-06 2016-09-08 Hg LAUNDRY SYSTEMS, LLC Washing machine with positive pressure moisture extraction
CN106002535B (zh) * 2015-03-31 2020-05-22 尼德克株式会社 眼镜镜片加工装置
US10576600B2 (en) * 2016-12-20 2020-03-03 Huvitz Co., Ltd. Apparatus for processing edge of eyeglass lens
JP6998159B2 (ja) * 2017-09-07 2022-01-18 株式会社ディスコ 切削ブレード供給装置
CN108356644A (zh) * 2018-01-19 2018-08-03 维达力实业(深圳)有限公司 保护镜片的打磨刀具
CN109759604B (zh) * 2019-02-27 2020-09-15 丹阳市雷登智能科技有限公司 镜片切边方法
CN110480509B (zh) * 2019-09-07 2020-10-09 广州瞳鑫邈视光电有限公司 一种机头驱动机构
CN112936001A (zh) * 2019-12-10 2021-06-11 苏州阿奎睿思机器人科技有限公司 光学精密加工单元

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FR2725047B1 (fr) * 1994-09-27 1997-01-31 Essilor Int Procede et dispositif pour obvier a la fragilite des aretes d'une lentille ophtalmique, et lentille ophtalmique correspondante
DE10013649A1 (de) * 2000-03-18 2001-09-27 Wernicke & Co Gmbh Zusatzschleifwerkzeug an einer Brillenglasrandschleifmaschine
JP2001277086A (ja) * 2000-03-31 2001-10-09 Topcon Corp レンズ周縁加工装置
JP2003011057A (ja) * 2001-07-02 2003-01-15 Toshiba Mach Co Ltd 旋回軸を有するｎｃ工作機械

Also Published As

Publication number Publication date
FR2852878A1 (fr) 2004-10-01
CN1764517A (zh) 2006-04-26
FR2852878B1 (fr) 2006-09-29
WO2004087374A1 (fr) 2004-10-14
EP1606079A1 (de) 2005-12-21
US20060217036A1 (en) 2006-09-28
US7281967B2 (en) 2007-10-16
CN100519070C (zh) 2009-07-29

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