BR8103365A - Matriz de moldagem e processo para a fabricacao de uma peca de fundicao para uma lente proporcionada com ressalto - Google Patents

Matriz de moldagem e processo para a fabricacao de uma peca de fundicao para uma lente proporcionada com ressalto

Info

Publication number
BR8103365A
BR8103365A BR8103365A BR8103365A BR8103365A BR 8103365 A BR8103365 A BR 8103365A BR 8103365 A BR8103365 A BR 8103365A BR 8103365 A BR8103365 A BR 8103365A BR 8103365 A BR8103365 A BR 8103365A
Authority
BR
Brazil
Prior art keywords
boss
manufacturing
lens provided
casting piece
molding matrix
Prior art date
Application number
BR8103365A
Other languages
English (en)
Inventor
B Canterbury
P Ramirez
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of BR8103365A publication Critical patent/BR8103365A/pt

Links

Classifications

    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00028—Bifocal lenses; Multifocal lenses
    • 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
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808—Lens mold

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
BR8103365A 1980-05-30 1981-05-29 Matriz de moldagem e processo para a fabricacao de uma peca de fundicao para uma lente proporcionada com ressalto BR8103365A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/154,670 US4279401A (en) 1980-05-30 1980-05-30 Apparatus and method for making cast ophthalmic lenses

Publications (1)

Publication Number Publication Date
BR8103365A true BR8103365A (pt) 1982-02-16

Family

ID=22552267

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8103365A BR8103365A (pt) 1980-05-30 1981-05-29 Matriz de moldagem e processo para a fabricacao de uma peca de fundicao para uma lente proporcionada com ressalto

Country Status (8)

Country Link
US (1) US4279401A (pt)
AU (1) AU538692B2 (pt)
BR (1) BR8103365A (pt)
CA (1) CA1162395A (pt)
DE (1) DE3121490A1 (pt)
FR (1) FR2483311A1 (pt)
GB (1) GB2076727B (pt)
IT (1) IT1170908B (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565348A (en) * 1981-04-30 1986-01-21 Mia-Lens Production A/S Mold for making contact lenses, the male mold member being more flexible than the female mold member
US4640489A (en) * 1981-04-30 1987-02-03 Mia-Lens Production A/S Mold for making contact lenses, either the male or female mold sections being relatively more flexible
US4407766A (en) * 1981-05-26 1983-10-04 National Patent Development Corporation Molds and procedure for producing truncated contact lenses
US4560459A (en) * 1984-02-21 1985-12-24 Hoefer Scientific Instruments Vertical gel sandwich for use in electrophoresis and method therefor
US4605524A (en) * 1984-11-19 1986-08-12 Danker Laboratories, Inc. Method and master-die for casting a bifocal contact lens in a single piece
US4659524A (en) * 1985-03-12 1987-04-21 Neefe Charles W Method of molding bifocal contact lenses
US4614624A (en) * 1985-03-12 1986-09-30 Neefe Charles W Method of molding bifocal lenses
US4693446A (en) * 1985-09-20 1987-09-15 Techna Vision, Inc. Gasket for molding plastic lenses
US4940205A (en) * 1986-01-06 1990-07-10 Milo Rudd Duplex lens
WO1989011966A1 (en) * 1988-06-01 1989-12-14 Vision Science, Inc. Method and apparatus for manufacturing disposable optical molds
CA1327890C (en) * 1988-10-17 1994-03-22 Corning Glass Works Method of producing moulds for organic polymer multifocal lenses
DK0458734T3 (da) * 1990-04-24 1994-03-07 Ciba Geigy Ag Fremgangsmåde til fremstilling af kontaktlinser
US5141678A (en) * 1990-10-10 1992-08-25 Blum Ronald D Method for forming disposable molds for producing optical quality lenses
US5198844A (en) * 1991-07-10 1993-03-30 Johnson & Johnson Vision Products, Inc. Segmented multifocal contact lens
GB9125480D0 (en) * 1991-11-29 1992-01-29 Pilkington Visioncare Holdings Polymeric bifocal lens production process
US5244377A (en) * 1992-04-01 1993-09-14 Standard Antiseptic, Inc. Toric posterior and anterior curve dies for making corneal contact lenses
US5346171A (en) * 1993-02-25 1994-09-13 Recycled Plastics, Inc. Method and apparatus for forming plastic panels from recycled plastic chips
US5538674A (en) * 1993-11-19 1996-07-23 Donnelly Corporation Method for reproducing holograms, kinoforms, diffractive optical elements and microstructures
US5524419A (en) * 1995-02-02 1996-06-11 Bausch & Lomb Incorporated Method and apparatus for molding contact lenses and making their container
JP3153251B2 (ja) * 1996-12-17 2001-04-03 ホーヤ株式会社 プラスチック製検眼レンズおよびその射出成形品並びにその成形用型装置とその製造方法
US6082987A (en) * 1997-02-20 2000-07-04 Technology Resources International Corporation Apparatus for assembling a lens-forming device
US6103148A (en) * 1998-02-19 2000-08-15 Technology Resources International Corporation Method for curing a lens-forming fluid
USD434050S (en) * 1999-12-06 2000-11-21 Technology Resource International Corporation Gasket for lens making
DE10315008A1 (de) * 2003-03-11 2005-01-05 Optotech Optikmaschinen Gmbh Verfahren und Vorrichtung zur Herstellung von Brillengläsern und anderen Formkörpern mit optisch wirksamen Oberflächen
DE10332673A1 (de) * 2003-07-18 2005-02-24 Optotech Optikmaschinen Gmbh Verfahren und Vorrichtung zur Herstellung von Brillengläsern und anderen optischen Formkörpern
FR2877872B1 (fr) * 2004-11-18 2007-03-02 Sidel Sas Moule a insert pour une machine de soufflage de recipients
US9234874B2 (en) * 2011-02-24 2016-01-12 Bio-Rad Laboratories, Inc. Dimensional stabilization of slab gel cassettes to prevent distortion caused by swelling gels
CN105848865B (zh) 2013-11-20 2018-04-13 光学转变公司 形成光致变色分段多焦点透镜的方法
US10444537B2 (en) 2015-01-22 2019-10-15 Transitions Optical, Inc. Optical article having a photoluminescent mark

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109696A (en) * 1962-05-15 1963-11-05 American Optical Corp Method of making plastic lenses
GB982528A (en) * 1962-11-19 1965-02-03 Combined Optical Ind Ltd Manufacture of lenses
US3423488A (en) * 1966-05-11 1969-01-21 Ppg Industries Inc Process for casting resinous lenses in thermoplastic cast replica molds
US3460928A (en) * 1967-06-09 1969-08-12 American Optical Corp Method of making lens molds
US3555126A (en) * 1967-12-19 1971-01-12 Abraham Gitson Method of making a mold and molding a bifocal lens
US3649236A (en) * 1970-03-05 1972-03-14 Bausch & Lomb Manufacture of multifocal ophthalmic lens molds
US3865529A (en) * 1973-12-05 1975-02-11 Beatrice Foods Co Molding apparatus
US3946982A (en) * 1974-09-03 1976-03-30 Textron, Inc. Adjustable mold for direct casting of plastic multifocal lenses

Also Published As

Publication number Publication date
FR2483311A1 (fr) 1981-12-04
GB2076727B (en) 1983-09-01
DE3121490C2 (pt) 1990-11-08
FR2483311B1 (pt) 1984-03-30
IT8148324A0 (it) 1981-04-22
AU6957081A (en) 1981-12-03
DE3121490A1 (de) 1982-04-22
US4279401A (en) 1981-07-21
IT1170908B (it) 1987-06-03
GB2076727A (en) 1981-12-09
CA1162395A (en) 1984-02-21
AU538692B2 (en) 1984-08-23

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19960529