HK100695A - Device for machining an ophthalmic lens with in particular aspheric surfaces - Google Patents

Device for machining an ophthalmic lens with in particular aspheric surfaces

Info

Publication number
HK100695A
HK100695A HK100695A HK100695A HK100695A HK 100695 A HK100695 A HK 100695A HK 100695 A HK100695 A HK 100695A HK 100695 A HK100695 A HK 100695A HK 100695 A HK100695 A HK 100695A
Authority
HK
Hong Kong
Prior art keywords
machining
turning tool
spindle
ophthalmic lens
pivot axis
Prior art date
Application number
HK100695A
Inventor
Peter Dr Hagmann
Peter Hoefer
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of HK100695A publication Critical patent/HK100695A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements
    • 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

Abstract

A device for producing an ophthalmic lens with, in particular, aspherical surfaces by machining in a continuous operation, with a spindle 5, which is rotatably mounted in a headstock 15 and to which a lens blank 2 rotatable with the spindle 5 about the spindle axis 9 can be fastened, a turning tool 1 which is pivotable about a pivot axis 3 perpendicular to the spindle axis 9, and a setting device 14 by means of which the pivoting radius of the turning tool relative to the pivot axis 3 can be set as a function of the pivoting angle during the machining operation and which has a piezoelectric drive 4 and/or 21 which transmits a linear adjusting movement to the turning tool 1 in the radial direction relative to the pivot axis 3 during the machining operation for setting the pivoting radius of the turning tool 1. <IMAGE>
HK100695A 1990-01-24 1995-06-22 Device for machining an ophthalmic lens with in particular aspheric surfaces HK100695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH22590 1990-01-24

Publications (1)

Publication Number Publication Date
HK100695A true HK100695A (en) 1995-06-30

Family

ID=4182140

Family Applications (1)

Application Number Title Priority Date Filing Date
HK100695A HK100695A (en) 1990-01-24 1995-06-22 Device for machining an ophthalmic lens with in particular aspheric surfaces

Country Status (7)

Country Link
EP (1) EP0439425B1 (en)
AT (1) ATE88125T1 (en)
DE (1) DE59100077D1 (en)
DK (1) DK0439425T3 (en)
ES (1) ES2041201T3 (en)
GR (1) GR3008402T3 (en)
HK (1) HK100695A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687598A1 (en) * 1992-02-26 1993-08-27 Cmvm International MACHINE AND METHOD FOR GENERATING ANY OPTICAL OR OPHTHALMIC LENS SURFACE BY GRINDING.
DE4412370A1 (en) * 1994-04-12 1995-10-19 Schneider Gmbh & Co Kg Method and device for producing aspherical lens surfaces
US6523443B1 (en) * 1995-10-14 2003-02-25 Carl-Zeiss-Stiftung, Heidenheim/Brenz Process for manufacturing optical surfaces and shaping machine for carrying out this process
ES2193229T3 (en) * 1996-01-29 2003-11-01 Gerard Muller DEVICE FOR THE MANUFACTURE OF CONTACT LINES.
GB2314452A (en) * 1996-06-17 1997-12-24 Rank Taylor Hobson Ltd Electromechanical actuator
US6122999A (en) * 1997-04-17 2000-09-26 Novartis Ag Lathe apparatus and method
JP4322324B2 (en) * 1997-04-17 2009-08-26 ノバルティス アクチエンゲゼルシャフト Lathe apparatus and method
WO2003101666A2 (en) * 2002-05-29 2003-12-11 Massachusetts Institute Of Technology Rotary fast tool servo system and methods
US7765905B2 (en) 2002-05-29 2010-08-03 Massachusetts Institute Of Technology Magnetic micropositioner and method of providing the same
US7437980B2 (en) 2002-05-29 2008-10-21 Massachusetts Institute Of Technology Flux-biased electromagnetic fast tool servo systems and methods
US7275468B2 (en) 2002-05-29 2007-10-02 Massachusetts Institute Of Technology Rotary fast tool servo system and methods
US7574947B2 (en) 2002-05-29 2009-08-18 Massachusetts Institute Of Technology Rotary fast tool servo system and methods
WO2005043266A2 (en) 2003-10-31 2005-05-12 Massachusetts Institute Of Technology Variable reluctance fast positioning system and methods
DE102004020990B4 (en) * 2004-04-23 2008-05-21 Schott Ag Apparatus and method for producing microstructures
WO2005108004A1 (en) * 2004-04-23 2005-11-17 Schott Ag Device and method for the production of microstructures
DE602006002724D1 (en) 2006-05-12 2008-10-23 Satisloh Gmbh Method and apparatus for creating an optical surface on a workpiece, e.g. Ophthalmic lenses
DE102006031079B4 (en) 2006-07-05 2010-04-08 Siemens Ag Machine tool with a piezoelectric actuator
DE102007031703A1 (en) * 2007-07-06 2009-01-08 Satisloh Gmbh Machine for processing optical workpieces, in particular plastic spectacle lenses
CN102059620A (en) * 2010-07-19 2011-05-18 长春理工大学 Numerical control aspherical processing method adopting tangent method and machine tool
EP2684643A3 (en) * 2012-05-22 2014-04-16 Schneider GmbH & Co. KG Device and method for processing an optical workpiece

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3492894A (en) * 1967-10-02 1970-02-03 Heald Machine Co Machine tool
US4307046A (en) * 1979-07-16 1981-12-22 Neefe Charles W Method of laser machining contact lenses
DE3110624C2 (en) * 1981-03-18 1983-12-29 Titmus Eurocon Kontaktlinsen Gmbh & Co Kg, 8750 Aschaffenburg Apparatus for manufacturing a contact lens
JPS60114457A (en) * 1983-11-26 1985-06-20 Nippon Kogaku Kk <Nikon> Spherical face forming grinder
DE8513146U1 (en) * 1985-05-04 1988-04-28 Alfing Kessler Sondermaschinen Gmbh, 7080 Aalen, De
DE3820085C1 (en) * 1988-06-13 1989-07-27 Reichert-Jung Optische Werke Ag, Wien, At Microtome, especially ultramicrotome
JP2797333B2 (en) * 1988-09-16 1998-09-17 セイコーエプソン株式会社 Method and apparatus for manufacturing contact lens

Also Published As

Publication number Publication date
EP0439425B1 (en) 1993-04-14
DK0439425T3 (en) 1993-05-24
ES2041201T3 (en) 1993-11-01
GR3008402T3 (en) 1993-10-29
DE59100077D1 (en) 1993-05-19
ATE88125T1 (en) 1993-04-15
EP0439425A1 (en) 1991-07-31

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)