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WO2002037168A3 - Method and system for producing progressive addition spectacle lenses - Google Patents

Method and system for producing progressive addition spectacle lenses Download PDF

Info

Publication number
WO2002037168A3
WO2002037168A3 PCT/US2001/042559 US0142559W WO0237168A3 WO 2002037168 A3 WO2002037168 A3 WO 2002037168A3 US 0142559 W US0142559 W US 0142559W WO 0237168 A3 WO0237168 A3 WO 0237168A3
Authority
WO
WIPO (PCT)
Prior art keywords
axis
points
motions
blank
spectacle lenses
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.)
Ceased
Application number
PCT/US2001/042559
Other languages
French (fr)
Other versions
WO2002037168A2 (en
Inventor
James W Drain
Neal Bergman
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.)
DAC International Inc
Original Assignee
DAC International Inc
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 DAC International Inc filed Critical DAC International Inc
Priority to AU2002211873A priority Critical patent/AU2002211873A1/en
Publication of WO2002037168A2 publication Critical patent/WO2002037168A2/en
Publication of WO2002037168A3 publication Critical patent/WO2002037168A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/46—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously with variable speed ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Numerical Control (AREA)

Abstract

A method and system for producing progressive addition spectacle lenses required rotating a lens blank (10) about a first axis (Z). A cutting tool (12) is reciprocated along a second axis (Z') parallel to the first axis, and is also moved along a third axis (X) orthogonal to the first and second axes. All these motions are controlled such that the cutting tool is brought into contact with the blank and reciprocated in synchronization with the rotation of the blank, thereby enabling a desired non-rotationally symmetric surface to be generated. The necessary rotary and linear motions are suitably provided by respective actuators (36, 18, 24, 30), and corresponding encoders (38, 20, 26, 32) are used to provide velocity and position information for each actuator. A processor (42) receives the encoder outputs and is arranged to provide closed loop control of each actuator. A desired surface may be provided to the processor in the form of a points file which describes the surface with an array of points having three-dimensional coordinates. The points are first converted into polar coordinates (50), then translated into motion equations which are evaluated to generate the motions necessary to create the desired surface.
PCT/US2001/042559 2000-11-01 2001-10-09 Method and system for producing progressive addition spectacle lenses Ceased WO2002037168A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002211873A AU2002211873A1 (en) 2000-11-01 2001-10-09 Method and system for producing progressive addition spectacle lenses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70330900A 2000-11-01 2000-11-01
US09/703,309 2000-11-01

Publications (2)

Publication Number Publication Date
WO2002037168A2 WO2002037168A2 (en) 2002-05-10
WO2002037168A3 true WO2002037168A3 (en) 2002-08-01

Family

ID=24824872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/042559 Ceased WO2002037168A2 (en) 2000-11-01 2001-10-09 Method and system for producing progressive addition spectacle lenses

Country Status (2)

Country Link
AU (1) AU2002211873A1 (en)
WO (1) WO2002037168A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7290471B2 (en) 2005-11-15 2007-11-06 3M Innovative Properties Company Cutting tool having variable rotation about a y-direction transversely across a work piece for making microstructures
US7293487B2 (en) 2005-11-15 2007-11-13 3M Innovative Properties Company Cutting tool having variable and independent movement in an x-direction and a z-direction into and laterally along a work piece for making microstructures
US7328638B2 (en) 2005-12-27 2008-02-12 3M Innovative Properties Company Cutting tool using interrupted cut fast tool servo
US7350442B2 (en) 2005-11-15 2008-04-01 3M Innovative Properties Company Cutting tool having variable movement in a z-direction laterally along a work piece for making microstructures
US7350441B2 (en) 2005-11-15 2008-04-01 3M Innovative Properties Company Cutting tool having variable movement at two simultaneously independent speeds in an x-direction into a work piece for making microstructures

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005001100A (en) * 2003-02-21 2005-01-06 Seiko Epson Corp Method of working aspherical face and method of forming aspherical face
WO2004080653A1 (en) * 2003-03-11 2004-09-23 Optotech Optikmaschinen Gmbh Method and device for producing ophthalmic lenses and other shaped bodies with optically active surfaces
DE102004019931B4 (en) * 2004-04-21 2012-01-05 Schneider Gmbh & Co. Kg Correction procedure for cutting machines
US7677146B2 (en) 2006-05-10 2010-03-16 3M Innovative Properties Company Cutting tool using one or more machined tool tips in a continuous or interrupted cut fast tool servo
US7628100B2 (en) 2007-01-05 2009-12-08 3M Innovative Properties Company Cutting tool using one or more machined tool tips with diffractive features in a continuous or interrupted cut fast tool servo
US7669508B2 (en) 2007-10-29 2010-03-02 3M Innovative Properties Company Cutting tool using one or more machined tool tips with diffractive features
TWI483013B (en) 2008-04-02 2015-05-01 3M Innovative Properties Co Light directing film and method for making the same
US9952584B2 (en) * 2014-04-01 2018-04-24 Digital Vision, Inc. Modifying a digital ophthalmic lens map to accommodate characteristics of a lens surfacing machine
EP3483681B1 (en) 2017-11-08 2023-08-30 Essilor International Method and system for producing ophthalmic lenses
US10634935B2 (en) 2018-01-18 2020-04-28 Digital Vision, Inc. Multifocal lenses with ocular side lens segments

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534740A1 (en) * 1991-09-27 1993-03-31 Coburn Optical Industries, Inc. Lathe for generating ophtalmic products from blanks, and a method of operating the lathe
DE4210381A1 (en) * 1992-03-30 1993-10-14 Seiko Epson Corp Non-axis symmetrical aspherical surface forming unit for workpiece e.g. lens, using NC milling tool - has workpiece holder and theta axis rotation unit for continuous rotation of holder about Z-axis in direction of theta coordinate axis tool holder
US5718154A (en) * 1996-06-27 1998-02-17 Bausch & Lomb, Inc. Reciprocating tool holder assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0534740A1 (en) * 1991-09-27 1993-03-31 Coburn Optical Industries, Inc. Lathe for generating ophtalmic products from blanks, and a method of operating the lathe
DE4210381A1 (en) * 1992-03-30 1993-10-14 Seiko Epson Corp Non-axis symmetrical aspherical surface forming unit for workpiece e.g. lens, using NC milling tool - has workpiece holder and theta axis rotation unit for continuous rotation of holder about Z-axis in direction of theta coordinate axis tool holder
US5718154A (en) * 1996-06-27 1998-02-17 Bausch & Lomb, Inc. Reciprocating tool holder assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7290471B2 (en) 2005-11-15 2007-11-06 3M Innovative Properties Company Cutting tool having variable rotation about a y-direction transversely across a work piece for making microstructures
US7293487B2 (en) 2005-11-15 2007-11-13 3M Innovative Properties Company Cutting tool having variable and independent movement in an x-direction and a z-direction into and laterally along a work piece for making microstructures
US7350442B2 (en) 2005-11-15 2008-04-01 3M Innovative Properties Company Cutting tool having variable movement in a z-direction laterally along a work piece for making microstructures
US7350441B2 (en) 2005-11-15 2008-04-01 3M Innovative Properties Company Cutting tool having variable movement at two simultaneously independent speeds in an x-direction into a work piece for making microstructures
US7395742B2 (en) 2005-11-15 2008-07-08 3M Innovative Properties Company Method for using a cutting tool having variable movement in a z-direction laterally along a work piece for making microstructures
US7395741B2 (en) 2005-11-15 2008-07-08 3M Innovative Properties Company Method for using a cutting tool having variable and independent movement in an x-direction and z-direction into and laterally along a work piece for making microstructures
US7398715B2 (en) 2005-11-15 2008-07-15 3M Innovative Properties Company Method for using a cutting tool having variable rotation about a y-direction transversely across a work piece for making microstructures
US7487701B2 (en) 2005-11-15 2009-02-10 3M Innovative Properties Company Method for using a cutting tool having variable movement at two simultaneously independent speeds in an x-direction into a work piece for making microstructures
US7328638B2 (en) 2005-12-27 2008-02-12 3M Innovative Properties Company Cutting tool using interrupted cut fast tool servo

Also Published As

Publication number Publication date
WO2002037168A2 (en) 2002-05-10
AU2002211873A1 (en) 2002-05-15

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