ATE211422T1 - LATHE AND METHOD - Google Patents

LATHE AND METHOD

Info

Publication number
ATE211422T1
ATE211422T1 AT98106802T AT98106802T ATE211422T1 AT E211422 T1 ATE211422 T1 AT E211422T1 AT 98106802 T AT98106802 T AT 98106802T AT 98106802 T AT98106802 T AT 98106802T AT E211422 T1 ATE211422 T1 AT E211422T1
Authority
AT
Austria
Prior art keywords
cutting tool
workpiece
axis
adjacent
bed
Prior art date
Application number
AT98106802T
Other languages
German (de)
Inventor
Armando Durazo
Drew Morgan
Charles Mannor
Original Assignee
Novartis Erfind Verwalt Gmbh
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 Novartis Erfind Verwalt Gmbh filed Critical Novartis Erfind Verwalt Gmbh
Application granted granted Critical
Publication of ATE211422T1 publication Critical patent/ATE211422T1/en

Links

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
    • B24B13/06—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
    • 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
    • B24B13/0025—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for contact 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

In one form, the disclosure describes a lathe apparatus and method for manufacturing a product with a non-axisymmetric shape from a workpiece, such as a toric contact lens, comprises a spindle for rotating the workpiece about an axis of rotation, a cutting tool, a two-axis bed for supporting the cutting tool and for moving the cutting tool along a predetermined path adjacent the workpiece as the spindle rotates the workpiece, and a mechanism for oscillating the cutting tool along an oscillating axis as the two-axis bed moves the cutting tool along the predetermined path, wherein the oscillation axis is oriented at a non-zero angle with respect to the axis of rotation. Preferably, the non-zero angle is about 45 DEG . In a second form, a lathe apparatus comprises a rotary bed for arcuately moving a cutting tool adjacent a workpiece and a mechanism for translationally reciprocating the cutting tool as the cutting tool is arcuately moved adjacent the workpiece. <IMAGE>
AT98106802T 1997-04-17 1998-04-15 LATHE AND METHOD ATE211422T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83740797A 1997-04-17 1997-04-17

Publications (1)

Publication Number Publication Date
ATE211422T1 true ATE211422T1 (en) 2002-01-15

Family

ID=25274362

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98106802T ATE211422T1 (en) 1997-04-17 1998-04-15 LATHE AND METHOD

Country Status (6)

Country Link
EP (1) EP0872307B1 (en)
JP (1) JP4322324B2 (en)
AT (1) ATE211422T1 (en)
DE (1) DE69803327T2 (en)
DK (1) DK0872307T3 (en)
ES (1) ES2170977T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021640B4 (en) 2005-05-06 2007-08-09 Satisloh Gmbh Machine for processing optical workpieces, in particular plastic spectacle lenses
DE102005052314A1 (en) * 2005-11-01 2007-05-03 Satisloh Gmbh Fast tool arrangement, in particular for lathes for processing optical workpieces
CN100389917C (en) * 2006-07-21 2008-05-28 清华大学 Diamond turning method and device for Archimedean spiral type Fresnel lens
EP2684643A3 (en) * 2012-05-22 2014-04-16 Schneider GmbH & Co. KG Device and method for processing an optical workpiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE88125T1 (en) * 1990-01-24 1993-04-15 Ciba Geigy Ag DEVICE FOR MANUFACTURING A CONTACT LENS WITH PARTICULARLY ASPHERIC FRONT AND/OR BACK SURFACE.

Also Published As

Publication number Publication date
EP0872307A1 (en) 1998-10-21
JPH10296502A (en) 1998-11-10
JP4322324B2 (en) 2009-08-26
DE69803327T2 (en) 2002-09-19
DE69803327D1 (en) 2002-02-28
EP0872307B1 (en) 2002-01-02
DK0872307T3 (en) 2002-04-02
ES2170977T3 (en) 2002-08-16

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