DE3851677D1 - Verfahren zum Herstellen von Hydrogel-Kontaktlinsen mit asphaerischen Oberflächen. - Google Patents
Verfahren zum Herstellen von Hydrogel-Kontaktlinsen mit asphaerischen Oberflächen.Info
- Publication number
- DE3851677D1 DE3851677D1 DE3851677T DE3851677T DE3851677D1 DE 3851677 D1 DE3851677 D1 DE 3851677D1 DE 3851677 T DE3851677 T DE 3851677T DE 3851677 T DE3851677 T DE 3851677T DE 3851677 D1 DE3851677 D1 DE 3851677D1
- Authority
- DE
- Germany
- Prior art keywords
- manufacture
- contact lenses
- hydrogel contact
- aspherical surfaces
- aspherical
- 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 - Fee Related
Links
- 239000000017 hydrogel Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- 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
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
- B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
- B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
-
- 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
- B24B13/046—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 using a pointed tool or scraper-like tool
-
- 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
- B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
- B24B17/02—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only
- B24B17/025—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only for grinding rotating workpieces (three dimensional)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00932—Combined cutting and grinding thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automation & Control Theory (AREA)
- Eyeglasses (AREA)
- Turning (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/085,755 US4909621A (en) | 1987-08-17 | 1987-08-17 | Method of making hydrogel contact lenses having aspheric front surfaces |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3851677D1 true DE3851677D1 (de) | 1994-11-03 |
DE3851677T2 DE3851677T2 (de) | 1995-09-28 |
Family
ID=22193732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3851677T Expired - Fee Related DE3851677T2 (de) | 1987-08-17 | 1988-07-21 | Verfahren zum Herstellen von Hydrogel-Kontaktlinsen mit asphaerischen Oberflächen. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4909621A (de) |
EP (1) | EP0304106B1 (de) |
JP (1) | JP2881227B2 (de) |
AU (1) | AU613655B2 (de) |
CA (1) | CA1319549C (de) |
DE (1) | DE3851677T2 (de) |
IN (1) | IN169054B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2104053C (en) * | 1992-08-31 | 1999-04-13 | Miguel A. Cacho | Automated fluid bed process |
US5517260A (en) * | 1994-03-28 | 1996-05-14 | Vari-Site, Inc. | Ophthalmic lens having a progressive multifocal zone and method of manufacturing same |
DE4412370A1 (de) * | 1994-04-12 | 1995-10-19 | Schneider Gmbh & Co Kg | Verfahren und Vorrichtung zum Herstellen asphärischer Linsenoberflächen |
AUPM970294A0 (en) * | 1994-11-28 | 1994-12-22 | Queensland University Of Technology | An optical control method |
AU695812B2 (en) * | 1994-11-28 | 1998-08-20 | Queensland University Of Technology | Optical treatment method |
US6045578A (en) * | 1995-11-28 | 2000-04-04 | Queensland University Of Technology | Optical treatment method |
WO2000036457A1 (en) * | 1998-12-16 | 2000-06-22 | Wesley Jessen Corporation | Multifocal contact lens with aspheric surface |
US6325509B1 (en) | 1999-08-20 | 2001-12-04 | Art Optical Contact Lens, Inc. | Low-mass ophthalmic lens |
WO2006137712A1 (en) * | 2005-06-22 | 2006-12-28 | Nanophotonics Ltd. | Optical components including lens having at least one aspherical refractive surface |
KR100624052B1 (ko) | 2005-06-22 | 2006-09-15 | 주식회사 나노포토닉스 | 적어도 하나의 비구면 굴절면을 갖는 렌즈를 포함하는 광부품 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142140A (en) * | 1960-12-14 | 1964-07-28 | Agency Ind Science Techn | Process of manufacturing a precise non-spherical surface |
US3482906A (en) * | 1965-10-04 | 1969-12-09 | David Volk | Aspheric corneal contact lens series |
US3950082A (en) * | 1973-01-10 | 1976-04-13 | David Volk | Ophthalmic lens for presbyopia and aphakia |
US3977279A (en) * | 1975-04-16 | 1976-08-31 | Derrell C. Hooker | Lathe for generating spherical or aspherical surfaces on workpieces |
WO1979000082A1 (en) * | 1977-08-02 | 1979-02-22 | Automated Optics | Method and apparatus adapted for automatic or semi-automatic fabrication of ultra-precision ophthalmic lenses,e.g.,contact lenses |
US4195919A (en) * | 1977-10-31 | 1980-04-01 | Shelton William A | Contact lens with reduced spherical aberration for aphakic eyes |
US4194815A (en) * | 1978-06-28 | 1980-03-25 | Dow Corning Corporation | Semi-scleral contact lens |
US4199231A (en) * | 1978-08-21 | 1980-04-22 | Evans Carl H | Hydrogel contact lens |
US4418991A (en) * | 1979-09-24 | 1983-12-06 | Breger Joseph L | Presbyopic contact lens |
US4333368A (en) * | 1980-07-15 | 1982-06-08 | Kollmorgen Technologies Corporation | Method and apparatus for generating aspherical surfaces of revolution |
GB8325027D0 (en) * | 1983-09-19 | 1983-10-19 | Robertson Eng Thame Ltd | Aspheric cutting lathe |
US4640595A (en) * | 1984-05-02 | 1987-02-03 | David Volk | Aspheric contact lens |
JPS63500403A (ja) * | 1985-08-08 | 1988-02-12 | ボルク、デイビッド | コンタクトレンズ |
-
1987
- 1987-08-17 US US07/085,755 patent/US4909621A/en not_active Expired - Lifetime
-
1988
- 1988-07-21 DE DE3851677T patent/DE3851677T2/de not_active Expired - Fee Related
- 1988-07-21 EP EP88201593A patent/EP0304106B1/de not_active Expired - Lifetime
- 1988-07-26 IN IN619/CAL/88A patent/IN169054B/en unknown
- 1988-08-08 AU AU20631/88A patent/AU613655B2/en not_active Ceased
- 1988-08-12 JP JP63202068A patent/JP2881227B2/ja not_active Expired - Fee Related
- 1988-08-16 CA CA000574882A patent/CA1319549C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU613655B2 (en) | 1991-08-08 |
EP0304106B1 (de) | 1994-09-28 |
EP0304106A2 (de) | 1989-02-22 |
JPH01138528A (ja) | 1989-05-31 |
AU2063188A (en) | 1989-02-23 |
DE3851677T2 (de) | 1995-09-28 |
JP2881227B2 (ja) | 1999-04-12 |
CA1319549C (en) | 1993-06-29 |
US4909621A (en) | 1990-03-20 |
IN169054B (de) | 1991-08-24 |
EP0304106A3 (en) | 1990-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication related to discontinuation of the patent is to be deleted | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |