EP1606078B1 - Verfahren zum aussenkonturfräsen eines brillenglases - Google Patents

Verfahren zum aussenkonturfräsen eines brillenglases Download PDF

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Publication number
EP1606078B1
EP1606078B1 EP04742330A EP04742330A EP1606078B1 EP 1606078 B1 EP1606078 B1 EP 1606078B1 EP 04742330 A EP04742330 A EP 04742330A EP 04742330 A EP04742330 A EP 04742330A EP 1606078 B1 EP1606078 B1 EP 1606078B1
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EP
European Patent Office
Prior art keywords
lens
face
points
coordinates
meridian
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
EP04742330A
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English (en)
French (fr)
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EP1606078A1 (de
Inventor
Laurent Essilor International GUILLERMIN
Ludovic Jouard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
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Publication date
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Publication of EP1606078A1 publication Critical patent/EP1606078A1/de
Application granted granted Critical
Publication of EP1606078B1 publication Critical patent/EP1606078B1/de
Anticipated expiration legal-status Critical
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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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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

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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)
  • Glass Melting And Manufacturing (AREA)
  • Glass Compositions (AREA)

Claims (8)

  1. Verfahren zum präzisen Zuschneiden eines Brillenglases (1), um es in eine bestimmte Brillenfassung montieren zu können, bei dem man das Brillenglas zwischen zwei Druckstücken (2, 3) in einer vordefinierten Position an einem Referenzkoordinatensystem zu den Druckstücken hält und man das Abschleifen des Brillenglasumfangs (1) entlang einer Linie, deren programmierter Endabschnitt auf dem Brillenglas der Form (8) der Kontur der Brillenfassung entspricht, steuert, dadurch gekennzeichnet, dass es umfasst:
    - ein erstes Ablesen einer Vielzahl von Punkten einer Seite des Brillenglases bei schwachem Einspannen,
    - ein zweites Ablesen einer anderen Vielzahl von Punkten der oben genannten Seite des Brillenglases bei starkem Einspannen, was zum Zuschneiden des Brillenglases erforderlich ist,
    - ausgehend von dem oben genannten zweimaligen Ablesen eine annähernde mathematische Repräsentation der oben genannten Brillenglasseite unter beiden Einspannbedingungen,
    - eine Berechnung mittels der oben genannten mathematischen Repräsentationen der Koordinaten von Punkten der Transformation der Leitung der programmierten Form der Brillenfassung auf der Brillenglasseite, wobei die Transformation auf die Deformation des Brillenglases gemäß einem bekannten Modell beim Übergang vom ersten auf das zweite Einspannen zurückzuführen ist,
    - eine Korrektur jedes einzelnen Punkts der programmierten Abschleiflinie, die durch die Abweichung zwischen den programmierten und den berechneten Koordinaten definiert wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das erste Ablesen das Abtasten der Punkte dieser Seite, die mindestens einem Meridianbogen angehört, in einer dieser Leitung benachbarten Zone umfasst, darunter auch der Schnittpunkt dieses Meridianbogens mit dieser Leitung, um eine mathematische Annäherung der Form dieses Meridianbogens zu ermitteln, und dadurch, dass das zweite Ablesen das Abtasten des bereits abgetasteten Meridianbogens umfasst, um eine mathematische Annäherung der Form dieses Bogens zu ermitteln, die mit der ersten Annäherung korreliert, und dadurch, dass die oben genannte Berechnung und Korrektur darin bestehen, den Wert der Koordinaten des Schnittpunktes der Leitung und des Meridianbogens in der mathematischen Repräsentation des Meridianbogens unter verformender Belastung zu berechnen und den Endabschnitt der Linie der Schleifscheibe um einen Koeffizienten zu korrigieren, der aus der Abweichung zwischen den abgelesenen und den berechneten Koordinaten dieses Schnittpunkts stammt.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das zweite Abtasten nach einem vorläufigen Zuschneiden des Brillenglases realisiert wird.
  4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die mathematische Annäherung eine polynomiale Annäherung ist.
  5. Verfahren nach einem beliebigen der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das Abtasten der Meridianbögen auf vier um 90° um den Mittelpunkt (C) des Brillenglases (1) verschobenen Bögen erfolgt.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der oben genannte Korrekturkoeffizient für jeden Punkt der Linie zwischen zwei nebeneinanderliegenden abgetasteten Meridianbögen durch lineare Interpolation ermittelt wird.
  7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es ein Ablesen der Leitung der Konturlinie der Brillenfassung auf der oben genannten Seite des Brillenglases umfasst.
  8. Verfahren nach den Ansprüchen 5 und 7, dadurch gekennzeichnet, dass der oben genannte Korrekturkoeffizient für die Linie zwischen zwei nebeneinanderliegenden abgetasteten Meridianbögen durch eine Interpolationsformel ermittelt wird, die ausgehend von den beim Abtasten dieser Leitung abgelesenen Daten erstellt wird.
EP04742330A 2003-03-27 2004-03-24 Verfahren zum aussenkonturfräsen eines brillenglases Expired - Lifetime EP1606078B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0303764 2003-03-27
FR0303764A FR2852877B1 (fr) 2003-03-27 2003-03-27 Procede de detourage d'un verre de lunette
PCT/FR2004/000720 WO2004087373A1 (fr) 2003-03-27 2004-03-24 Procede de detourage d'un verre de lunette

Publications (2)

Publication Number Publication Date
EP1606078A1 EP1606078A1 (de) 2005-12-21
EP1606078B1 true EP1606078B1 (de) 2011-08-03

Family

ID=32947206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04742330A Expired - Lifetime EP1606078B1 (de) 2003-03-27 2004-03-24 Verfahren zum aussenkonturfräsen eines brillenglases

Country Status (8)

Country Link
US (1) US7253974B2 (de)
EP (1) EP1606078B1 (de)
JP (1) JP4050766B2 (de)
KR (1) KR100707944B1 (de)
CN (1) CN100443261C (de)
AT (1) ATE518621T1 (de)
FR (1) FR2852877B1 (de)
WO (1) WO2004087373A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5073338B2 (ja) * 2007-03-28 2012-11-14 株式会社ニデック レンズ固定用カップ
CN101391389B (zh) * 2007-09-21 2012-05-23 鸿富锦精密工业（深圳）有限公司 滚圆装置及滚圆方法
FR2940161B1 (fr) * 2008-12-19 2010-12-31 Essilor Int Dispositif et procede d'usinage d'une lentille ophtalmique
FR2950161B1 (fr) * 2009-09-14 2011-10-07 Essilor Int Procede d'elaboration d'une consigne de detourage d'une lentille ophtalmique en vue de son montage sur une monture de lunettes semi-cerclee.
FR2962676B1 (fr) * 2010-07-13 2012-08-03 Essilor Int Procede de detourage d'une lentille ophtalmique de lunettes comportant un film de revetement.
CN102172869B (zh) * 2011-03-30 2013-06-19 铁道第三勘察设计院集团有限公司 基于可视化的轨道板数控磨床优化打磨方法
JP5342665B2 (ja) * 2012-03-12 2013-11-13 ファナック株式会社 渦巻き状計測経路に沿って計測を行うレンズ形状加工方法およびレンズ形状加工装置
TWI739569B (zh) * 2019-09-06 2021-09-11 明達醫學科技股份有限公司 眼鏡鏡片加工裝置之校正方法
CN113971262B (zh) * 2021-10-22 2023-05-05 西南交通大学 一种钻尖容屑槽磨削轨迹计算方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06325697A (ja) * 1993-05-14 1994-11-25 Matsushita Electron Corp カラー・プラズマディスプレイパネル
JP3241241B2 (ja) * 1995-08-09 2001-12-25 三菱重工業株式会社 中空ガスタービン翼
JP3730406B2 (ja) * 1998-04-30 2006-01-05 株式会社ニデック 眼鏡レンズ加工装置
US6325697B1 (en) * 1999-11-24 2001-12-04 Glassline Corporation CNC machine tools
CN1223436C (zh) * 2002-08-07 2005-10-19 刘康 一种光学镜片的研磨方法及装置

Also Published As

Publication number Publication date
ATE518621T1 (de) 2011-08-15
JP4050766B2 (ja) 2008-02-20
KR20060005347A (ko) 2006-01-17
CN100443261C (zh) 2008-12-17
WO2004087373A1 (fr) 2004-10-14
EP1606078A1 (de) 2005-12-21
CN1764518A (zh) 2006-04-26
FR2852877B1 (fr) 2005-05-06
KR100707944B1 (ko) 2007-04-13
FR2852877A1 (fr) 2004-10-01
US7253974B2 (en) 2007-08-07
US20070097525A1 (en) 2007-05-03
JP2006514584A (ja) 2006-05-11

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