EP0123891A3 - Method of shaping a convergent lens in a plate made of a transparent mineral material - Google Patents

Method of shaping a convergent lens in a plate made of a transparent mineral material Download PDF

Info

Publication number
EP0123891A3
EP0123891A3 EP84103309A EP84103309A EP0123891A3 EP 0123891 A3 EP0123891 A3 EP 0123891A3 EP 84103309 A EP84103309 A EP 84103309A EP 84103309 A EP84103309 A EP 84103309A EP 0123891 A3 EP0123891 A3 EP 0123891A3
Authority
EP
European Patent Office
Prior art keywords
shaping
plate
convergent lens
transparent mineral
mineral
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.)
Granted
Application number
EP84103309A
Other languages
French (fr)
Other versions
EP0123891B1 (en
EP0123891A2 (en
Inventor
Claude-Michel Juvet
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.)
Comadur SA
Original Assignee
Comadur SA
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
Priority to CH1800/83 priority Critical
Priority to CH180083A priority patent/CH651773A5/en
Application filed by Comadur SA filed Critical Comadur SA
Publication of EP0123891A2 publication Critical patent/EP0123891A2/en
Publication of EP0123891A3 publication Critical patent/EP0123891A3/en
Application granted granted Critical
Publication of EP0123891B1 publication Critical patent/EP0123891B1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/04Machines 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
EP19840103309 1983-03-31 1984-03-26 Method of shaping a convergent lens in a plate made of a transparent mineral material Expired EP0123891B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1800/83 1983-03-31
CH180083A CH651773A5 (en) 1983-03-31 1983-03-31 Process for forming a convergent lens in a plate of transparent mineral material.

Publications (3)

Publication Number Publication Date
EP0123891A2 EP0123891A2 (en) 1984-11-07
EP0123891A3 true EP0123891A3 (en) 1986-02-05
EP0123891B1 EP0123891B1 (en) 1988-05-18

Family

ID=4218896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840103309 Expired EP0123891B1 (en) 1983-03-31 1984-03-26 Method of shaping a convergent lens in a plate made of a transparent mineral material

Country Status (6)

Country Link
US (1) US4584799A (en)
EP (1) EP0123891B1 (en)
JP (1) JPS59187449A (en)
CH (1) CH651773A5 (en)
DE (1) DE3471270D1 (en)
SG (1) SG38991G (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0450152B2 (en) * 1985-11-08 1992-08-13 Matsushita Electric Ind Co Ltd
EP0257013B1 (en) * 1986-08-19 1992-01-02 Léon Biebuyck Method and apparatus for mechanically grinding and polishing a surface of a mineral material, especially glass
US4956944A (en) * 1987-03-19 1990-09-18 Canon Kabushiki Kaisha Polishing apparatus
JPH0659613B2 (en) * 1988-10-20 1994-08-10 オリンパス光学工業株式会社 Grinding and polishing device and grinding and polishing method
DE69827768D1 (en) 1998-04-02 2004-12-30 Comadur Sa Watch glass with a lens and method for producing such a lens
JP4288012B2 (en) * 2001-01-05 2009-07-01 株式会社ニデック Eyeglass lens processing equipment
EP1424163A1 (en) * 2002-11-26 2004-06-02 Comadur S.A. Rotative tool for machining a shape on a mineral material, like sapphire, in particular for machining an optical surface on a watch-glass
US7083326B2 (en) * 2004-09-13 2006-08-01 Ast Ryan C Adjustable watch crystal apparatus
DE602006021132D1 (en) * 2006-01-25 2011-05-19 Guala Closures Spa Tamper-evident cap for bottles containing valuable drinks
KR101764109B1 (en) 2012-02-16 2017-08-03 애플 인크. Interlocking flexible segments formed from a rigid material
US10086484B2 (en) 2012-10-12 2018-10-02 Apple Inc. Manufacturing of computing devices
JP6006144B2 (en) * 2013-02-27 2016-10-12 オリンパス株式会社 Lens processing apparatus, lens processing method, and lens processing tool
DE102014003598B4 (en) * 2014-03-17 2020-02-27 Satisloh Ag Device for grinding, fine grinding and / or polishing workpieces of optical quality, in particular spherical lens surfaces in fine optics
US9852723B2 (en) 2014-03-27 2017-12-26 Apple Inc. Acoustic modules
CN205115306U (en) 2014-09-30 2016-03-30 苹果公司 Pottery part
US10071539B2 (en) 2014-09-30 2018-09-11 Apple Inc. Co-sintered ceramic for electronic devices
US10207387B2 (en) 2015-03-06 2019-02-19 Apple Inc. Co-finishing surfaces
US10216233B2 (en) 2015-09-02 2019-02-26 Apple Inc. Forming features in a ceramic component for an electronic device
US10542628B2 (en) 2017-08-02 2020-01-21 Apple Inc. Enclosure for an electronic device having a shell and internal chassis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1491383A (en) * 1921-05-31 1924-04-22 American Optical Corp Lens-grinding apparatus
US1563918A (en) * 1922-08-02 1925-12-01 American Optical Corp Method of grinding lenses
US2087687A (en) * 1934-07-27 1937-07-20 Daniel D Hubbell Apparatus for producing one-piece multifocal ophthalmic lenses
DE806532C (en) * 1949-04-21 1951-06-14 Fabrication Belge De Lentilles Device for grinding spherical surfaces, in particular optical lenses
US3905163A (en) * 1974-03-06 1975-09-16 Tropel Lens making method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515681A (en) * 1919-05-02 1924-11-18 American Optical Corp Lens grinder
GB449398A (en) * 1934-12-21 1936-06-22 James Alfred Moore Improvements in the process of grinding curved surfaces, and apparatus therefor
US2336322A (en) * 1940-02-23 1943-12-07 Uhlemann Optical Co Of Illinoi One-piece plurifocal lens
FR977720A (en) * 1942-10-21 1951-04-04 Verreries De Bagneaux Et Apper Method and apparatus for surfacing spherical bodies, in particular optical glasses
US2747339A (en) * 1954-01-18 1956-05-29 Bausch & Lomb Lens grinding machine
US2975565A (en) * 1957-10-29 1961-03-21 Edward H Phillips Machine for grinding and polishing lenses
US2977724A (en) * 1959-08-24 1961-04-04 Textron Inc Lens surfacing machine
SU865619A1 (en) * 1980-01-07 1981-09-23 Предприятие П/Я Г-4671 Method of working the aspherical surfaces of an optical component
CA1201579A (en) * 1981-03-05 1986-03-11 Yoshiaki Nagaura Lens-shaped article or the like and a method and apparatus for the manufacture of the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1491383A (en) * 1921-05-31 1924-04-22 American Optical Corp Lens-grinding apparatus
US1563918A (en) * 1922-08-02 1925-12-01 American Optical Corp Method of grinding lenses
US2087687A (en) * 1934-07-27 1937-07-20 Daniel D Hubbell Apparatus for producing one-piece multifocal ophthalmic lenses
DE806532C (en) * 1949-04-21 1951-06-14 Fabrication Belge De Lentilles Device for grinding spherical surfaces, in particular optical lenses
US3905163A (en) * 1974-03-06 1975-09-16 Tropel Lens making method

Also Published As

Publication number Publication date
JPS59187449A (en) 1984-10-24
US4584799A (en) 1986-04-29
SG38991G (en) 1991-07-26
CH651773A5 (en) 1985-10-15
EP0123891A2 (en) 1984-11-07
DE3471270D1 (en) 1988-06-23
EP0123891B1 (en) 1988-05-18

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