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 LENSESInfo
- 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
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.
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 (8)
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 |
Family Cites Families (5)
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 |
AU1399600A (en) * | 1998-12-01 | 2000-06-19 | Optical Generics Limited | A polishing machine and method |
-
2002
- 2002-02-21 DE DE10207379A patent/DE10207379A1/en not_active Withdrawn
-
2003
- 2003-02-20 US US10/505,195 patent/US20050215175A1/en not_active Abandoned
- 2003-02-20 AU AU2003215573A patent/AU2003215573A1/en not_active Abandoned
- 2003-02-20 EP EP03742562A patent/EP1478490B1/en not_active Expired - Lifetime
- 2003-02-20 WO PCT/EP2003/001749 patent/WO2003070427A2/en active IP Right Grant
- 2003-02-20 AT AT03742562T patent/ATE343454T1/en not_active IP Right Cessation
- 2003-02-20 DE DE50305484T patent/DE50305484D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2003070427A2 (en) | 2003-08-28 |
EP1478490A2 (en) | 2004-11-24 |
AU2003215573A1 (en) | 2003-09-09 |
US20050215175A1 (en) | 2005-09-29 |
WO2003070427A3 (en) | 2004-03-04 |
DE10207379A1 (en) | 2003-09-04 |
ATE343454T1 (en) | 2006-11-15 |
EP1478490B1 (en) | 2006-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |