AU538692B2 - Casting ophithalmic lenses - Google Patents

Casting ophithalmic lenses

Info

Publication number
AU538692B2
AU538692B2 AU69570/81A AU6957081A AU538692B2 AU 538692 B2 AU538692 B2 AU 538692B2 AU 69570/81 A AU69570/81 A AU 69570/81A AU 6957081 A AU6957081 A AU 6957081A AU 538692 B2 AU538692 B2 AU 538692B2
Authority
AU
Australia
Prior art keywords
die
molding
pieces
piece
pair
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.)
Ceased
Application number
AU69570/81A
Other languages
English (en)
Other versions
AU6957081A (en
Inventor
Bradford Canterbury
Peter R. Ramirez
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.)
AO Inc
Original Assignee
AO Inc
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 AO Inc filed Critical AO Inc
Publication of AU6957081A publication Critical patent/AU6957081A/en
Application granted granted Critical
Publication of AU538692B2 publication Critical patent/AU538692B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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)
AU69570/81A 1980-05-30 1981-04-15 Casting ophithalmic lenses Ceased AU538692B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US154670 1980-05-30
US06/154,670 US4279401A (en) 1980-05-30 1980-05-30 Apparatus and method for making cast ophthalmic lenses

Publications (2)

Publication Number Publication Date
AU6957081A AU6957081A (en) 1981-12-03
AU538692B2 true AU538692B2 (en) 1984-08-23

Family

ID=22552267

Family Applications (1)

Application Number Title Priority Date Filing Date
AU69570/81A Ceased AU538692B2 (en) 1980-05-30 1981-04-15 Casting ophithalmic lenses

Country Status (8)

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

Families Citing this family (30)

* 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
EP0377020A4 (en) * 1988-06-01 1991-04-24 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
ES2046877T3 (es) * 1990-04-24 1994-02-01 Ciba-Geigy Ag Procedimiento para la fabricacion de lentes de contacto.
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
WO1998026707A1 (en) * 1996-12-17 1998-06-25 Hoya Corporation Plastic trial lens, its injection molded article and its molding apparatus
JP2001512383A (ja) * 1997-02-20 2001-08-21 テクノロジー リソース インターナショナル コーポレイション レンズ形成のためのガスケット
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
DE10332673A1 (de) * 2003-07-18 2005-02-24 Optotech Optikmaschinen Gmbh Verfahren und Vorrichtung zur Herstellung von Brillengläsern und anderen optischen Formkörpern
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
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
WO2015077181A1 (en) 2013-11-20 2015-05-28 Transitions Optical, Inc. Method of coating a lens and lens support
CN107438514B (zh) 2015-01-22 2019-10-18 光学转变公司 具有光致发光标记的光学制品
US12178783B2 (en) 2020-04-14 2024-12-31 Illinois Tool Works Inc. Anti-free-flow valve assembly with flow bypass

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
DE3121490C2 (enExample) 1990-11-08
GB2076727A (en) 1981-12-09
US4279401A (en) 1981-07-21
IT8148324A0 (it) 1981-04-22
IT8148324A1 (it) 1982-10-22
CA1162395A (en) 1984-02-21
AU6957081A (en) 1981-12-03
DE3121490A1 (de) 1982-04-22
BR8103365A (pt) 1982-02-16
FR2483311A1 (fr) 1981-12-04
IT1170908B (it) 1987-06-03
GB2076727B (en) 1983-09-01
FR2483311B1 (enExample) 1984-03-30

Similar Documents

Publication Publication Date Title
AU540490B2 (en) Sprue
AU546858B2 (en) s
AU535792B2 (en) l
AU543760B2 (en) Contact lens
AU531974B2 (en) Polycarbonate-plastic lens
AU6957081A (en) Casting ophithalmic lenses
AU536754B2 (en) Imidodisulfamides
AU7657081A (en) Bivision contact lens
AU8577782A (en) Mono-aspherical single lens
AU3206284A (en) 2-guanidno-4-heteroarylthiazoles
AU543341B2 (en) Intraocular lens
AU548539B2 (en) Die casting
AU541135B2 (en) Mould
AU527275B2 (en) Auto-diaphragm hemodialyser
AU537824B2 (en) Oxygensensor
AU541279B2 (en) Continuous casting
AU6661781A (en) Casting plant
AU526488B2 (en) Tempering a casting
AU534814B2 (en) Showstand
JPS5776513A (en) Auxiliary lens
AU537073B2 (en) Haloacetanilide
AU517843B2 (en) Guanylamidines
AU6653981A (en) Mould
AU525004B2 (en) Phthalimidoguanidines
AU7288081A (en) 11alpha-amino-androstanes