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DE50305484D1 - METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES - Google Patents

METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES

Info

Publication number
DE50305484D1
DE50305484D1 DE50305484T DE50305484T DE50305484D1 DE 50305484 D1 DE50305484 D1 DE 50305484D1 DE 50305484 T DE50305484 T DE 50305484T DE 50305484 T DE50305484 T DE 50305484T DE 50305484 D1 DE50305484 D1 DE 50305484D1
Authority
DE
Germany
Prior art keywords
tools
calculated
tool
optical lenses
form surfaces
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.)
Expired - Lifetime
Application number
DE50305484T
Other languages
German (de)
Inventor
Sven Kiontke
Hermann Doehler
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.)
Asphericon GmbH
Original Assignee
Asphericon 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 Asphericon GmbH filed Critical Asphericon GmbH
Priority to DE50305484T priority Critical patent/DE50305484D1/en
Application granted granted Critical
Publication of DE50305484D1 publication Critical patent/DE50305484D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A method for re-grinding and polishing free-form surfaces, especially rotationally symmetrical aspherical optical lenses by tools. in which the virtual levelling of a coarsely pre-grinded lens, for example, is calculated by interferometric measurement and by calculation with a desired form; pressure, rotational speed and sojourn time of the tools are controlled by means of said virtual levelling and the surface of the lens, for example, is divided up into partial areas. The partial areas correspond to the size of the tools. A zeroized approximation is calculated for the control of the tools. Said zeroized approximation enables the interaction of the partial areas to be estimated. By taking into account the estimated interaction, a sojourn time for each tool on each partial area is calculated as a function of pressure and rotational speed of the tool for each partial area, using a linear equation system and the tools are controlled accordingly. The invention also relates to tools and tool arrangements in addition to especially precise aspherical lenses.
DE50305484T 2002-02-21 2003-02-20 METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES Expired - Lifetime DE50305484D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50305484T DE50305484D1 (en) 2002-02-21 2003-02-20 METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10207379A DE10207379A1 (en) 2002-02-21 2002-02-21 Process for grinding and polishing free-form surfaces, in particular rotationally symmetrical aspherical optical lenses
PCT/EP2003/001749 WO2003070427A2 (en) 2002-02-21 2003-02-20 Method for re-grinding and polishing free-form surfaces, especially rotationally symmetrical aspherical optical lenses
DE50305484T DE50305484D1 (en) 2002-02-21 2003-02-20 METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES

Publications (1)

Publication Number Publication Date
DE50305484D1 true DE50305484D1 (en) 2006-12-07

Family

ID=27674822

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10207379A Withdrawn DE10207379A1 (en) 2002-02-21 2002-02-21 Process for grinding and polishing free-form surfaces, in particular rotationally symmetrical aspherical optical lenses
DE50305484T Expired - Lifetime DE50305484D1 (en) 2002-02-21 2003-02-20 METHOD FOR RENEWING AND POLISHING FREE-FORM SURFACES, ESPECIALLY ROTATION SYMMETRIC ASPHARIC OPTICAL LENSES

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10207379A Withdrawn DE10207379A1 (en) 2002-02-21 2002-02-21 Process for grinding and polishing free-form surfaces, in particular rotationally symmetrical aspherical optical lenses

Country Status (6)

Country Link
US (1) US20050215175A1 (en)
EP (1) EP1478490B1 (en)
AT (1) ATE343454T1 (en)
AU (1) AU2003215573A1 (en)
DE (2) DE10207379A1 (en)
WO (1) WO2003070427A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004028470A1 (en) 2004-06-11 2005-12-29 Leica Microsystems (Schweiz) Ag Eye, in particular Retinaschutzvorrichtung and optical element with a freeform surface for an illumination beam path, and use of an optical element with free-form surface
DE102007040395B4 (en) * 2007-08-27 2010-03-11 Optotech Optikmaschinen Gmbh Device for the block-free production of single and multi-thickness glasses in the production of prescriptions
DE102009004787A1 (en) * 2009-01-13 2010-07-15 Schneider Gmbh & Co. Kg Apparatus and method for polishing lenses
US20120301242A1 (en) * 2011-05-24 2012-11-29 Canon Kabushiki Kaisha Method of manufacturing workpiece
US20140113525A1 (en) * 2012-10-22 2014-04-24 Apple Inc. Methods for finishing surfaces using tool center point shift techniques
JP2016132077A (en) * 2015-01-21 2016-07-25 株式会社ナガセインテグレックス Curved surface polishing device
CN110352115A (en) * 2017-03-06 2019-10-18 应用材料公司 It is mobile for the spiral and concentric circles of the position CMP particular abrasive (LSP) design
DE102017130797B4 (en) * 2017-12-20 2022-06-09 Leibniz-Institut für Oberflächenmodifizierung e.V. Process for creating a desired surface profile
CN111376142B (en) * 2019-12-25 2021-09-10 苏州大学 Numerical control milling, grinding, forming and polishing method and device for large-aperture aspherical mirror

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU878530A1 (en) * 1979-02-09 1981-11-07 Институт космических исследований АН СССР Method of formation of optical surfaces
DE3430499C2 (en) * 1984-08-18 1986-08-14 Fa. Carl Zeiss, 7920 Heidenheim Method and device for lapping or polishing optical workpieces
US4958463A (en) * 1988-06-06 1990-09-25 United Technologies Corporation Optical surface quality improving arrangement
JP3587908B2 (en) * 1995-09-01 2004-11-10 株式会社トプコン Polishing method and polishing apparatus
CN100372648C (en) * 1998-12-01 2008-03-05 伦敦大学学院 Polishing equipment and methods

Also Published As

Publication number Publication date
WO2003070427A2 (en) 2003-08-28
DE10207379A1 (en) 2003-09-04
WO2003070427A3 (en) 2004-03-04
EP1478490A2 (en) 2004-11-24
ATE343454T1 (en) 2006-11-15
AU2003215573A1 (en) 2003-09-09
EP1478490B1 (en) 2006-10-25
US20050215175A1 (en) 2005-09-29

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