EP1066919A1 - Endbearbeitungswerkzeug für optische Oberfläche, insbesondere für optische Linze - Google Patents

Endbearbeitungswerkzeug für optische Oberfläche, insbesondere für optische Linze Download PDF

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Publication number
EP1066919A1
EP1066919A1 EP00401626A EP00401626A EP1066919A1 EP 1066919 A1 EP1066919 A1 EP 1066919A1 EP 00401626 A EP00401626 A EP 00401626A EP 00401626 A EP00401626 A EP 00401626A EP 1066919 A1 EP1066919 A1 EP 1066919A1
Authority
EP
European Patent Office
Prior art keywords
support
working member
tool according
smoothing tool
elastically deformable
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.)
Granted
Application number
EP00401626A
Other languages
English (en)
French (fr)
Other versions
EP1066919B1 (de
Inventor
Joel Bernard
Jean-Marc Padiou
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
Publication of EP1066919A1 publication Critical patent/EP1066919A1/de
Application granted granted Critical
Publication of EP1066919B1 publication Critical patent/EP1066919B1/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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form

Definitions

  • the present invention relates generally to tools of the type of those used for smoothing an optical surface.
  • smoothing is meant here, in the usual way, both the polishing as the smoothing of such a surface.
  • the tools used to ensure such smoothing comprise, on the one hand, a support, which is rigid, and, on the other hand, a member of work, which is integral with the previous support.
  • the present invention relates more particularly to the case where this organ is generally annular in shape and at least partially resilient deformable.
  • a smoothing tool comprising such a working member is located by example described in the German utility model No 298 03 158.
  • annular shape it is possible to give the organ of work of sufficient dimensions and rigidity to be able to generate the desired smoothing effect, while minimizing, by its recess central, its overall volume, and, therefore, the amount of material elastically deformable which is actually to be deformed.
  • the elastically deformable part of this organ of work advantageously allows it to adapt as well as possible to the surface to smooth while ensuring optimal balancing of contact pressure corresponding.
  • the present invention generally relates to a provision allowing better control of this working organ.
  • a smoothing tool for optical surface of the kind comprising, on the one hand, a support, which is rigid, and, on the other hand, a working member, which is annular in shape, and which is at less partially elastically deformable, this smoothing tool being of a generally characterized in that the support forms, in hollow, a annular housing, and in that the working member is attached to this support to the bottom of this annular housing, making however obviously protruding beyond the support.
  • the support implemented includes at its root the working organ, and it is thus even to maintain and guide this working organ, for the benefit working conditions of the latter.
  • this support facilitates obtaining a uniform distribution of the contact pressure between this working member and the worked optical surface.
  • the smoothing 10 comprises, overall, on the one hand, a support 11, which is rigid, and, on the other hand, a working member 12, which is integral with the support 11.
  • the support 11 is carried by a pin 13 suitable for allow rotational training.
  • the support 11 forms a part of revolution around this axis of rotation A.
  • the working member 12 is shaped general annular, having as its axis the axis of rotation A, and, according to arrangements described in more detail later, it is at least partly elastically deformable.
  • the support 11 forms, recessed, on its surface transverse 14 opposite spindle 13, that is to say on its free surface, a annular housing 15, and the working member 12 is attached to this support 11 in favor of the bottom 16 of this annular housing 15, making however obviously protruding beyond the support 11, that is to say beyond the surface transverse 14 thereof.
  • the annular housing 15 of the support 11 has as its axis the axis of rotation A.
  • the transverse surface 14 of the support 11 extends substantially perpendicular to this axis of rotation A.
  • annular housing 15 presented by the support 11 is delimited by two lateral surfaces 17, 18, one internal, the other external, which are coaxial, being both centered on the axis of rotation A, and which, in practice, are both generally cylindrical, extending both substantially perpendicular to the bottom 16.
  • the support 11 has, recessed, on at least one of the lateral surfaces 17, 18 of its annular housing 15, at least one groove unloading 19.
  • This discharge groove 19 extends in the middle zone of the lateral surfaces 17, 18, concerning more than half the height of these, and, in the embodiment shown, its bottom 20 is cylindrical, being centered on the axis of rotation A.
  • the working member 12 is itself delimited by lateral surfaces 21, 22 cylindrical, one internal, the other external, and it covers the entire bottom 16 of the annular housing 15 of the support 11.
  • D1 be the internal diameter of the working member 12, D2 its diameter external, and E1 its thickness.
  • this width E2 is greater than the thickness E1 of the member work 12, so that it remains on both sides of this working organ 12, at the outlet of the annular housing 15 of the support 11, a set J.
  • the working member 12 is in three parts.
  • This elastically deformable core 12A is for example in elastomer.
  • Its elasticity is chosen according to the deformation capacity desired and support effort to support in operation.
  • this elastically deformable core 12A is between 30 and 80 shore A degrees, preferably being included between 50 and 60 shore A degrees.
  • the elastically deformable core 12A extends beyond the support 11.
  • the working member 12 then comprises between its elastically deformable core 12A and its working surface 24, the latter being formed by its free surface opposite the bottom 16 of the annular housing 15, a surface layer 12B, which is itself elastically deformable, but whose elasticity is lower than that of elastically deformable core 12A above.
  • the layer of surface 12B is responsible for giving the assembly all the necessary rigidity to allow the desired smoothing.
  • this surface layer 12B is made of polyurethane.
  • the hardness of the surface layer 12B is at least equal to 50 shore A degrees.
  • it is between 80 and 90 shore A degrees.
  • the height of the surface layer 12B parallel to the axis of rotation A is adapted according to the flexibility desired.
  • the working member 12A comprises, finally, at its free end, an abrasive film 12C, which forms the work surface 24.
  • this 12C abrasive film is polyester, and it has grains abrasives with a grain size between 0.25 and 45 ⁇ m.
  • these abrasive grains can be provided by a carrier fluid, such as a liquid, gel or aerosol for example, and be dragged by a sheet of support, in fabric or foam for example, or by a grid, being by example flocked on this support sheet or on this grid.
  • a carrier fluid such as a liquid, gel or aerosol for example
  • the three constituent parts of the working member 12 that is to say the elastically deformable core 12A, the surface layer 12B, and the abrasive film 12C, are joined to each other by gluing, and, even, this working member 12 is itself secured by gluing to the support 11.
  • the dimensions of the working member 12 are chosen sufficiently large vis-à-vis those of the defects to be smoothed so that these do not influence the shape components to be respected for the surface optics worked, and small enough for the tool to adapt locally to the shape of the part, so that the gap between the deformations of the working surface 24 and the surface to be treated is as small as possible.
  • the elasticity of the surface layer 12B can vary from that from the elastically deformable core 12A to that of a metal.
  • this surface layer 12B is formed from a thin and flexible metallic film.
  • the surface layer 12B is purely and simply deleted.
  • the present invention is not limited to the embodiment more particularly described and represented, but encompasses any variant of execution.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
  • Surface Treatment Of Glass (AREA)
  • Surface Treatment Of Optical Elements (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP00401626A 1999-07-02 2000-06-08 Endbearbeitungswerkzeug für optische Oberfläche, insbesondere für optische Linze Expired - Lifetime EP1066919B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908564A FR2795667B1 (fr) 1999-07-02 1999-07-02 Outil de lissage pour surface optique, en particulier pour lentille ophtalmique
FR9908564 1999-07-02

Publications (2)

Publication Number Publication Date
EP1066919A1 true EP1066919A1 (de) 2001-01-10
EP1066919B1 EP1066919B1 (de) 2002-10-30

Family

ID=9547650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401626A Expired - Lifetime EP1066919B1 (de) 1999-07-02 2000-06-08 Endbearbeitungswerkzeug für optische Oberfläche, insbesondere für optische Linze

Country Status (6)

Country Link
US (1) US6514133B1 (de)
EP (1) EP1066919B1 (de)
JP (1) JP2001054847A (de)
AT (1) ATE226866T1 (de)
DE (1) DE60000673T2 (de)
FR (1) FR2795667B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002337052A (ja) * 2001-05-16 2002-11-26 Olympus Optical Co Ltd ポリッシャ及びポリッシャを用いた研磨方法
DE102016119746B4 (de) * 2016-10-17 2024-02-08 Matuschek Meßtechnik GmbH Schleifscheibe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549372A (en) * 1980-04-02 1985-10-29 De Beers Industrial Diamond Division (Proprietary) Limited Grinding wheel
JPH0985605A (ja) * 1995-09-28 1997-03-31 Nikon Corp 研磨工具
JPH09239666A (ja) * 1996-03-06 1997-09-16 Nikon Corp スム−ジング工具

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970835A (en) * 1930-10-02 1934-08-21 Carborundum Co Abrasive article and method of making the same
US2110619A (en) * 1936-01-04 1938-03-08 Norton Co Grinding wheel mounting
US2065941A (en) * 1936-03-21 1936-12-29 Norton Co Mounted grinding wheel
US2065942A (en) * 1936-03-21 1936-12-29 Norton Co Grinding wheel
US2235446A (en) * 1939-07-10 1941-03-18 Milton H Birger Surfacing means
US2716312A (en) * 1953-03-09 1955-08-30 Elmer W Speicher Truing device for face-type diamond abrasive wheels
US3034625A (en) * 1958-01-29 1962-05-15 Demag Zug Gmbh Axially displaceable coupling, brake and like friction means
JPS58196061A (ja) * 1982-05-10 1983-11-15 Sharp Corp 薄膜半導体装置の電極形成方法
JPH0710502B2 (ja) * 1986-03-20 1995-02-08 大見工業株式会社 回転剥離具
JPH01171749A (ja) * 1987-12-23 1989-07-06 Olympus Optical Co Ltd レンズ面洗浄方法
JPH03221362A (ja) * 1990-01-19 1991-09-30 Matsushita Electric Ind Co Ltd トーリック面研磨装置
JPH068147A (ja) * 1992-06-29 1994-01-18 Tohoku Kako Kk 弾性砥石の支持方法及び砥石支持具
DE4328985C2 (de) * 1993-08-28 1995-12-07 Thielenhaus Ernst Kg Maschine zum Feinschleifen von vorbearbeiteten, ringscheibenförmigen metallischen Werkstücken
DE4328987C1 (de) * 1993-08-28 1995-02-16 Thielenhaus Ernst Kg Verwendung einer Schleifvorrichtung zum Feinschleifen von Kraftfahrzeugbremsen
DE29803158U1 (de) 1998-02-23 1998-08-06 Schneider GmbH + Co. KG, 35239 Steffenberg Mehrspindel-Poliermaschine mit verschiedenen Polierwerkzeugen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549372A (en) * 1980-04-02 1985-10-29 De Beers Industrial Diamond Division (Proprietary) Limited Grinding wheel
JPH0985605A (ja) * 1995-09-28 1997-03-31 Nikon Corp 研磨工具
JPH09239666A (ja) * 1996-03-06 1997-09-16 Nikon Corp スム−ジング工具

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *

Also Published As

Publication number Publication date
US6514133B1 (en) 2003-02-04
JP2001054847A (ja) 2001-02-27
ATE226866T1 (de) 2002-11-15
FR2795667A1 (fr) 2001-01-05
FR2795667B1 (fr) 2001-10-12
DE60000673D1 (de) 2002-12-05
EP1066919B1 (de) 2002-10-30
DE60000673T2 (de) 2003-07-03

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