EP1871572B1 - Verfahren zur maschinellen bearbeitung einer fläche einer in der mitte prismaförmigen ophthalmischen linse - Google Patents

Verfahren zur maschinellen bearbeitung einer fläche einer in der mitte prismaförmigen ophthalmischen linse Download PDF

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Publication number
EP1871572B1
EP1871572B1 EP06726064A EP06726064A EP1871572B1 EP 1871572 B1 EP1871572 B1 EP 1871572B1 EP 06726064 A EP06726064 A EP 06726064A EP 06726064 A EP06726064 A EP 06726064A EP 1871572 B1 EP1871572 B1 EP 1871572B1
Authority
EP
European Patent Office
Prior art keywords
machining
tool
ophthalmic lens
face
axis
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.)
Active
Application number
EP06726064A
Other languages
English (en)
French (fr)
Other versions
EP1871572A1 (de
Inventor
Alexandre Gourraud
Loïc QUERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Priority to PL06726064T priority Critical patent/PL1871572T3/pl
Publication of EP1871572A1 publication Critical patent/EP1871572A1/de
Application granted granted Critical
Publication of EP1871572B1 publication Critical patent/EP1871572B1/de
Active legal-status Critical Current
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
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • 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
    • B24B13/0012—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for multifocal lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/04—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 involving grinding wheels controlled by gearing
    • B24B13/046—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 involving grinding wheels controlled by gearing using a pointed tool or scraper-like tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/10—Process of turning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2502—Lathe with program control

Definitions

  • the figure 10 also shows the machining of the layer 7 by the tool 8 while the crude 5 'has rotated 180 ° relative to its position of the figure 9 , during his continuous training in rotation.
  • This figure 10 shows that the tool 8, to continue the machining of the layer 7 at the machining line 20, has moved parallel to the axis of rotation 4 'of a distance depending on the asymmetry from the surface 6.
  • the figure 21 shows the progression of the tool 8 which finishes machining the layer 7 only countdown until the tool 8 arrives at the position of the figure 22 in which the machining of the layer 7 is completed.
  • the height of the pass f of the residual volume 33 corresponds to the pass depth defining the layer 7 and is much greater than the height f of the residual volume of the process according to the invention (see FIG. figure 23 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
  • Turning (AREA)
  • Laser Beam Processing (AREA)
  • Milling Processes (AREA)

Claims (12)

  1. Drehbearbeitungsverfahren einer Fläche (3) einer ophthalmischen Linse (1), umfassend einen Hauptbearbeitungsschritt, während welchem die Position eines Bearbeitungswerkzeuges (8) synchronisiert ist mit der winkelmäßige Position der ophthalmischen Line (1), die rotativ um eine Rotationsachse (4) angetrieben ist, transversal verlaufend zur genannten Fläche (3), so dass an der Fläche eine asymmetrische Fläche mit Bezug auf die Rotationsachse (4) der ophthalmischen Linse (1) durch Bearbeitung bereitgestellt wird, wobei das Verfahren dadurch gekennzeichnet ist, das es einen zusätzlichen Bearbeitungsschritt zur Bildung einer Aussparung (22) herum um die Rotationsachse (4) der ophthalmischen Linse (1) umfasst und dadurch, dass das zur Ausarbeitung der Aussparung (22) bestimmte Werkzeug lediglich in Berührung mit der ophthalmischen Linse (1) während eines winkelmäßigen Teiles der Rotation der ophthalmischen Linse (1) steht.
  2. Bearbeitungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass der zusätzliche Bearbeitungsschritt vorangehend ausgeführt wird zu dem Hauptbearbeitungsschritt.
  3. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Aussparung (22) einen Teil oder Abschnitt der asymmetrischen Fläche definiert.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der zusätzliche Bearbeitungsschritt mittels eines Bearbeitungswerkzeuges (8) ausgeführt wird.
  5. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der zusätzliche Bearbeitungsschritt ausgeführt wird mittels eines Werkzeuges, welches distinkt ist von dem Bearbeitungswerkzeug (8).
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der zusätzliche Bearbeitungsschritt ausgeführt wird ohne Synchronisation der Position eines zur Ausarbeitung der Aussparung (22) bestimmten Werkzeuges mit der winkelmäßigen Position der Rotationsmäßigen angetriebenen ophthalmischen Linse (1).
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Bearbeitung der Aussparung (22) ausgeführt wird unter Versetzung eines Werkzeuges in Richtung der Rotationsachse der ophthalmischen Linse (1).
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass das Fortschreiten des Werkzeuges angehalten wird wenn die Mitte des Werkzeuges an der Rotationsachse der ophthalmischen Linse (1) positioniert ist.
  9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Aussparung (22) einen Rand umfasst, der über die Rotationsachse der ophthalmischen Linse (1) verläuft.
  10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass ein Restvolumen an Material ausgelegt ist, um in Umkehrrichtung bearbeitet zu werden durch das Bearbeitungswerkzeug (8) während dem Hauptbearbeitungsschritt, wobei das Restvolumen im Wesentlichen zentriert vorliegt mit Bezug auf die Rotationsachse der ophthalmischen Linse (1).
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass das Restvolumen bearbeitet wird während dem Hauptbearbeitungsschritt.
  12. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass der Hauptbearbeitungsschritt angehalten wird vor der Bearbeitung des Restvolumens.
EP06726064A 2005-03-17 2006-03-10 Verfahren zur maschinellen bearbeitung einer fläche einer in der mitte prismaförmigen ophthalmischen linse Active EP1871572B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06726064T PL1871572T3 (pl) 2005-03-17 2006-03-10 Sposób obróbki powierzchni soczewki okulistycznej pryzmatowanej w środku

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0502651A FR2883215B1 (fr) 2005-03-17 2005-03-17 Procede d'usinage d'une face de lentille optalmique prismee au centre
PCT/FR2006/000533 WO2006097606A1 (fr) 2005-03-17 2006-03-10 Procede d’usinage d’une face de lentille ophtalmique prismee au centre

Publications (2)

Publication Number Publication Date
EP1871572A1 EP1871572A1 (de) 2008-01-02
EP1871572B1 true EP1871572B1 (de) 2009-11-25

Family

ID=35229614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06726064A Active EP1871572B1 (de) 2005-03-17 2006-03-10 Verfahren zur maschinellen bearbeitung einer fläche einer in der mitte prismaförmigen ophthalmischen linse

Country Status (13)

Country Link
US (1) US8215210B2 (de)
EP (1) EP1871572B1 (de)
JP (1) JP5020226B2 (de)
CN (1) CN101142054B (de)
AT (1) ATE449667T1 (de)
AU (1) AU2006224447B2 (de)
BR (1) BRPI0609013B1 (de)
CA (1) CA2601536C (de)
DE (1) DE602006010680D1 (de)
FR (1) FR2883215B1 (de)
PL (1) PL1871572T3 (de)
PT (1) PT1871572E (de)
WO (1) WO2006097606A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263831A1 (de) 2009-06-15 2010-12-22 Essilor International (Compagnie Générale D'Optique) Verfahren zur Bearbeitung einer optischen Linsenoberfläche

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871123A (en) * 1927-12-27 1932-08-09 American Optical Corp Surfacing process and apparatus for same
US3662040A (en) * 1970-01-08 1972-05-09 Uroptics International Inc Technique for lathe grinding multifocal contact lenses
GB2117300B (en) * 1982-03-22 1985-09-04 Sira Institute Method and apparatus for producing aspherical surfaces
US4852436A (en) * 1987-11-16 1989-08-01 Hughes Aircraft Company Cam-controlled turning machine
SU1759563A1 (ru) * 1990-07-26 1992-09-07 Центральное Конструкторское Бюро Уникального Приборостроения Научно-Технического Объединения Ан Ссср Устройство дл обработки асферических поверхностей точением
JP3026824B2 (ja) * 1990-07-31 2000-03-27 株式会社メニコン 非球面レンズの製造装置
RU2004996C1 (ru) * 1990-12-13 1993-12-30 Новосибирский институт инженеров геодезии, аэрофотосъемки и картографии Устройство дл обработки асферических поверхностей
US5148632A (en) * 1991-06-14 1992-09-22 Corning Incorporated Cavity forming in plastic body
FR2706800B1 (de) * 1993-06-25 1995-11-03 Essilor Int
US5440798A (en) * 1994-01-18 1995-08-15 Gentex Optics, Inc. Method of making concave aspheric bifocal mold component
CN2291992Y (zh) * 1995-05-29 1998-09-23 汪胜生 高速散光眼镜片研磨抛光机床
DE19529786C1 (de) * 1995-08-12 1997-03-06 Loh Optikmaschinen Ag Verfahren und Werkzeug zur Erzeugung einer konkaven Oberfläche an einem Brillenglasrohling
US5931068A (en) * 1998-09-09 1999-08-03 Council, Jr.; Buford W. Method for lathing a lens
JP2003094201A (ja) * 2001-09-21 2003-04-03 Ricoh Co Ltd 軸非対称非球面加工機、軸非対称非球面加工法及び軸非対称非球面加工物
JP2005001100A (ja) * 2003-02-21 2005-01-06 Seiko Epson Corp 非球面加工方法及び非球面形成方法
US7160174B2 (en) * 2005-06-01 2007-01-09 Asphericon Gmbh Method for processing and measuring rotationally symmetric workpieces as well as grinding and polishing tool
JP2006326833A (ja) * 2006-07-10 2006-12-07 Seiko Epson Corp 非球面加工方法
JP2008023687A (ja) * 2006-07-25 2008-02-07 Fujinon Corp 軸非対称非球面の作製方法

Also Published As

Publication number Publication date
FR2883215B1 (fr) 2008-11-07
JP5020226B2 (ja) 2012-09-05
DE602006010680D1 (de) 2010-01-07
EP1871572A1 (de) 2008-01-02
AU2006224447B2 (en) 2011-01-20
WO2006097606A8 (fr) 2007-10-18
JP2008532783A (ja) 2008-08-21
CN101142054B (zh) 2010-08-11
AU2006224447A1 (en) 2006-09-21
ATE449667T1 (de) 2009-12-15
PL1871572T3 (pl) 2010-05-31
BRPI0609013A2 (pt) 2010-11-16
BRPI0609013A8 (pt) 2018-07-31
FR2883215A1 (fr) 2006-09-22
US8215210B2 (en) 2012-07-10
WO2006097606A1 (fr) 2006-09-21
CA2601536A1 (fr) 2006-09-21
PT1871572E (pt) 2010-01-26
CA2601536C (fr) 2014-09-16
US20080190254A1 (en) 2008-08-14
BRPI0609013B1 (pt) 2019-07-30
CN101142054A (zh) 2008-03-12

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