ES415017A1 - Apparatus for casting a holding block on an ophthalmic lens - Google Patents

Apparatus for casting a holding block on an ophthalmic lens

Info

Publication number
ES415017A1
ES415017A1 ES415017A ES415017A ES415017A1 ES 415017 A1 ES415017 A1 ES 415017A1 ES 415017 A ES415017 A ES 415017A ES 415017 A ES415017 A ES 415017A ES 415017 A1 ES415017 A1 ES 415017A1
Authority
ES
Spain
Prior art keywords
blank
block
face
mounting member
finished
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
Application number
ES415017A
Other languages
Spanish (es)
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.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique 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
Application filed by Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Publication of ES415017A1 publication Critical patent/ES415017A1/en
Expired 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
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0052—Lens block moulding devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lens Barrels (AREA)
  • Casting Devices For Molds (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The ophthalmic lens blank finished on one face is covered with a mounting member of which the wall covering the finished face of the blank is shaped to act as a bearing means for positioning the lower contour of the mould of the holding-block casting device and permitting the penetration, between said finished face of the blank and the mounting member, of the low-melting alloy cast by the holding-block casting device. After the casting operation, the mounting member remains incorporated in the block-supported blank except for a centering strip surrounding the cylindrical edge of the blank, said strip being removed by pulling a gripping member and tearing circumferentially a circular bridge portion of moderate thickness, before fitting the block-supported blank on the machine for surfacing, grinding or shaping the unfinished face of the blank.
ES415017A 1972-05-29 1973-05-22 Apparatus for casting a holding block on an ophthalmic lens Expired ES415017A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7219131A FR2186441B1 (en) 1972-05-29 1972-05-29

Publications (1)

Publication Number Publication Date
ES415017A1 true ES415017A1 (en) 1976-02-16

Family

ID=9099234

Family Applications (1)

Application Number Title Priority Date Filing Date
ES415017A Expired ES415017A1 (en) 1972-05-29 1973-05-22 Apparatus for casting a holding block on an ophthalmic lens

Country Status (11)

Country Link
US (1) US3865178A (en)
JP (1) JPS5442116B2 (en)
BR (1) BR7303920D0 (en)
DD (1) DD105572A5 (en)
ES (1) ES415017A1 (en)
FR (1) FR2186441B1 (en)
GB (1) GB1425903A (en)
HU (1) HU173588B (en)
IT (1) IT985891B (en)
NL (1) NL7307475A (en)
SU (1) SU528024A3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329427A1 (en) * 1975-10-30 1977-05-27 Essilor Int PROCESS FOR THE REALIZATION OF AN OPHTHALMIC LENS WITH PROGRESSIVELY VARIABLE FOCAL POWER, AND SEMI-FINISHED PALET FORMING AN INTERMEDIATE PRODUCT IN THIS PROCESS
JPS5419394U (en) * 1977-07-12 1979-02-07
US4266996A (en) * 1980-01-25 1981-05-12 Spectra-Physics, Inc. Method and tool for producing centered parts having spherical surfaces
FR2613261B1 (en) * 1987-03-30 1991-02-01 Essilor Int MOLD FOR FIXING A METAL BLOCK BY OVER-MOLDING ON ONE OF THE FACES OF AN OPHTHALMIC LENS
EP0807673A1 (en) * 1996-05-15 1997-11-19 Hamo Ag Protective adhesive foil for optical glasses and process for removing it
DE19925087C2 (en) * 1999-06-01 2002-11-21 Rmh Polymers Gmbh & Co Kg Device for bubble-free and wrinkle-free coating of optical or electronic components with one-sided adhesive protective film
DE10017363C2 (en) * 2000-04-07 2002-04-18 Rmh Polymers Gmbh & Co Kg Process for the automatic application of a protective lacquer to spectacle lens blanks
ATE433826T1 (en) * 2002-01-09 2009-07-15 Hoya Corp GRINDING TOOL
WO2011076904A1 (en) * 2009-12-24 2011-06-30 Essilor International (Compagnie Generale D'optique) A method for mounting an optical lens to be polished
JP5499074B2 (en) * 2011-05-17 2014-05-21 Ｈｏｙａ株式会社 Lens blank, method for manufacturing the same, and method for manufacturing a lens
US8659842B1 (en) * 2012-09-13 2014-02-25 Himax Technologies Limited Image capturing device and assembling method thereof
CN106334974A (en) * 2016-10-31 2017-01-18 福建福晶科技股份有限公司 Machining method for perpendicularity of optical piece

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1952373A (en) * 1924-04-10 1934-03-27 American Optical Corp Lens blocking device
US2266169A (en) * 1939-07-25 1941-12-16 Eastman Kodak Co Lens mount
JPS431012Y1 (en) * 1964-07-15 1968-01-18
US3330331A (en) * 1964-09-18 1967-07-11 Textron Inc Method and apparatus for blocking a lens blank
US3353307A (en) * 1964-10-29 1967-11-21 Titmus Optical Company Inc Lens holder for metallic blocking system
JPS436381Y1 (en) * 1965-02-10 1968-03-21
FR1517121A (en) * 1966-03-02 1968-03-15 Univis Inc Method and assembly block for the manufacture of ophthalmological lenses from blanks as well as lenses conforming to those thus obtained

Also Published As

Publication number Publication date
FR2186441B1 (en) 1976-08-06
FR2186441A1 (en) 1974-01-11
US3865178A (en) 1975-02-11
GB1425903A (en) 1976-02-25
SU528024A3 (en) 1976-09-05
DE2322479B2 (en) 1976-07-29
BR7303920D0 (en) 1974-07-25
JPS5442116B2 (en) 1979-12-12
JPS4955707A (en) 1974-05-30
IT985891B (en) 1974-12-20
DE2322479A1 (en) 1973-12-13
NL7307475A (en) 1973-12-03
HU173588B (en) 1979-06-28
DD105572A5 (en) 1974-05-05

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