ZA936703B - A method of manufacturing a contact lens - Google Patents

A method of manufacturing a contact lens

Info

Publication number
ZA936703B
ZA936703B ZA936703A ZA936703A ZA936703B ZA 936703 B ZA936703 B ZA 936703B ZA 936703 A ZA936703 A ZA 936703A ZA 936703 A ZA936703 A ZA 936703A ZA 936703 B ZA936703 B ZA 936703B
Authority
ZA
South Africa
Prior art keywords
manufacturing
lens
contact lens
section formed
methods
Prior art date
Application number
ZA936703A
Other languages
English (en)
Inventor
Ashok R Thakrar
Khushroo Gandhi
Original Assignee
Pilkington Visioncare 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 Pilkington Visioncare Inc filed Critical Pilkington Visioncare Inc
Publication of ZA936703B publication Critical patent/ZA936703B/xx

Links

Classifications

    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • 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
    • B29D11/00038—Production of contact lenses
    • B29D11/00048—Production of contact lenses composed of parts with dissimilar composition
    • 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
    • B29D11/00317—Production of lenses with markings or patterns
    • 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
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • 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
    • G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
ZA936703A 1992-09-11 1993-09-10 A method of manufacturing a contact lens ZA936703B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/944,891 US5433898A (en) 1992-09-11 1992-09-11 Method of manufacturing a contact lens

Publications (1)

Publication Number Publication Date
ZA936703B true ZA936703B (en) 1994-03-30

Family

ID=25482234

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA936703A ZA936703B (en) 1992-09-11 1993-09-10 A method of manufacturing a contact lens

Country Status (12)

Country Link
US (1) US5433898A (de)
EP (1) EP0670770B1 (de)
JP (1) JP3309856B2 (de)
CN (1) CN1085843A (de)
AT (1) ATE225706T1 (de)
AU (1) AU675248B2 (de)
CA (1) CA2144165C (de)
DE (1) DE69332383T2 (de)
IL (1) IL106978A0 (de)
MX (1) MX9305590A (de)
WO (1) WO1994006621A1 (de)
ZA (1) ZA936703B (de)

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US6176962B1 (en) 1990-02-28 2001-01-23 Aclara Biosciences, Inc. Methods for fabricating enclosed microchannel structures
US6054034A (en) * 1990-02-28 2000-04-25 Aclara Biosciences, Inc. Acrylic microchannels and their use in electrophoretic applications
US5923397A (en) * 1996-03-25 1999-07-13 Bausch & Lomb Incorporated Bimodulus contact lens article
DE69826857T2 (de) * 1997-05-27 2006-02-23 Novartis Ag Ophthalmische kompositlinse
JPH1123809A (ja) * 1997-06-30 1999-01-29 Fuji Photo Optical Co Ltd 多焦点レンズ及び多焦点レンズの製造方法
US6217171B1 (en) 1998-05-26 2001-04-17 Novartis Ag Composite ophthamic lens
US7104648B2 (en) * 2002-09-06 2006-09-12 Synergeyes, Inc. Hybrid contact lens system and method
US7097301B2 (en) * 2002-09-06 2006-08-29 Synergeyes, Inc. Hybrid contact lens system and method
US7322694B2 (en) 2002-09-06 2008-01-29 Synergeyes, Inc. Hybrid contact lens system and method
US7163292B2 (en) * 2002-09-06 2007-01-16 Synergeyes, Inc. Hybrid contact lens system and method
US20040099971A1 (en) * 2002-11-25 2004-05-27 Technology Resource International Corporation Lens molds and method of using the same
US7018039B2 (en) 2003-11-14 2006-03-28 Synergeyes,Inc. Contact lens
EP1750157B1 (de) * 2004-05-28 2010-10-13 Menicon Co., Ltd. Kontaktlinse
JP4614271B2 (ja) * 2004-12-27 2011-01-19 Ｈｏｙａ株式会社 複合コンタクトレンズ及びレンズ素材の製造方法
US7543936B2 (en) * 2005-05-06 2009-06-09 Synergeyes, Inc. Hybrid contact lens system and method of fitting
US7377637B2 (en) * 2005-10-11 2008-05-27 Synergeyes, Inc. Hybrid contact lens system and method of fitting
US7537339B2 (en) * 2006-05-25 2009-05-26 Synergeyes, Inc. Hybrid contact lens system and method of fitting
US20080074611A1 (en) * 2006-09-22 2008-03-27 Meyers William E Hybrid contact lens with improved resistance to flexure and method for designing the same
US20080291392A1 (en) * 2007-04-12 2008-11-27 Sicari Joseph E System and method for marking an ophthalmic lens
US7828432B2 (en) 2007-05-25 2010-11-09 Synergeyes, Inc. Hybrid contact lenses prepared with expansion controlled polymeric materials
US7850878B2 (en) 2007-12-31 2010-12-14 Bausch & Lomb Incorporated Method of forming a biomedical device including an ophthalmic device
KR101683042B1 (ko) 2008-04-04 2016-12-06 포사이트 비젼4, 인크. 통증 관리 및 시력을 위한 치료 장치
JP5775817B2 (ja) * 2009-07-08 2015-09-09 株式会社メニコン ハイブリッドソフトコンタクトレンズ、この製造方法及び水和処理方法
WO2011050365A1 (en) 2009-10-23 2011-04-28 Forsight Labs, Llc Conformable therapeutic shield for vision and pain
WO2011050327A1 (en) 2009-10-23 2011-04-28 Forsight Labs Llc Corneal denervation for treatment of ocular pain
US8591025B1 (en) 2012-09-11 2013-11-26 Nexisvision, Inc. Eye covering and refractive correction methods for LASIK and other applications
FR2956752B1 (fr) 2010-02-25 2012-07-27 Lentilles Procede de fabrication d'une lentille de contact hybride
US9690115B2 (en) 2010-04-13 2017-06-27 Johnson & Johnson Vision Care, Inc. Contact lenses displaying reduced indoor glare
US8877103B2 (en) 2010-04-13 2014-11-04 Johnson & Johnson Vision Care, Inc. Process for manufacture of a thermochromic contact lens material
US8697770B2 (en) 2010-04-13 2014-04-15 Johnson & Johnson Vision Care, Inc. Pupil-only photochromic contact lenses displaying desirable optics and comfort
DE102010047846B4 (de) * 2010-09-30 2017-11-09 Carl Zeiss Vision International Gmbh Optische Linse und Verfahren zum Herstellen einer optischen Linse
CA2816031A1 (en) 2010-10-25 2012-05-10 Nexisvision, Inc. Methods and apparatus to identify eye coverings for vision
US8678584B2 (en) 2012-04-20 2014-03-25 Nexisvision, Inc. Contact lenses for refractive correction
KR20140023378A (ko) 2011-04-28 2014-02-26 넥시스비젼, 인코포레이티드 개선된 눈물 흐름, 편안함, 및/또는 이용성을 지니는 눈 보호 및 굴절 교정 방법 및 장치
FR2979072B1 (fr) 2011-08-16 2013-09-27 Lentilles Procede, dispositif et piece composite pour la fabrication d'une lentille hybride
US9465233B2 (en) 2012-04-20 2016-10-11 Nexisvision, Inc. Bimodular contact lenses
CN104335104B (zh) 2012-04-20 2017-06-09 内希斯视觉股份有限公司 用于屈光矫正的接触透镜
US9180610B2 (en) * 2012-08-23 2015-11-10 Crt Technology, Inc. Devices and processes for fabricating multi-component optical systems
JP6310072B2 (ja) 2013-06-26 2018-04-11 ネクシスビジョン， インコーポレイテッド 屈折矯正のためのコンタクトレンズ
US9341864B2 (en) 2013-11-15 2016-05-17 Nexisvision, Inc. Contact lenses having a reinforcing scaffold
WO2015116559A1 (en) 2014-01-29 2015-08-06 Nexisvision, Inc. Multifocal bimodulus contact lenses
US11724471B2 (en) 2019-03-28 2023-08-15 Johnson & Johnson Vision Care, Inc. Methods for the manufacture of photoabsorbing contact lenses and photoabsorbing contact lenses produced thereby

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US3984506A (en) * 1970-01-19 1976-10-05 Tsuetaki George F Method of forming a composite bifocal contact lens blank
US3697629A (en) * 1970-02-26 1972-10-10 Leonard Bronstein Method and product of making multifocal contact lenses and lens blanks
US4197266A (en) * 1974-05-06 1980-04-08 Bausch & Lomb Incorporated Method for forming optical lenses
US4208362A (en) * 1975-04-21 1980-06-17 Bausch & Lomb Incorporated Shaped body of at least two polymerized materials and method to make same
US4472327A (en) * 1983-01-31 1984-09-18 Neefe Charles W Method of making hydrogel cosmetic contact lenses
US4710327A (en) * 1986-02-24 1987-12-01 Neefe Charles W Method of molding an eye color change contact lens blank
US4710328A (en) * 1986-02-24 1987-12-01 Neefe Charles W Method of making an eye color change contact lens
US4921205A (en) * 1988-05-17 1990-05-01 Sola Usa, Inc. Lens mold assembly
FR2673576B1 (fr) * 1991-03-08 1993-06-18 Essilor Int Procede pour l'obtention d'un article en materiau polymere transparent a gradient d'indice de refraction.
US5246634A (en) * 1992-01-24 1993-09-21 Menicon Co., Ltd. Process for producing intraocular lens

Also Published As

Publication number Publication date
AU675248B2 (en) 1997-01-30
DE69332383D1 (de) 2002-11-14
CN1085843A (zh) 1994-04-27
MX9305590A (es) 1994-05-31
CA2144165A1 (en) 1994-03-31
DE69332383T2 (de) 2003-10-23
EP0670770B1 (de) 2002-10-09
AU5102593A (en) 1994-04-12
EP0670770A4 (de) 1997-08-20
IL106978A0 (en) 1993-12-28
ATE225706T1 (de) 2002-10-15
US5433898A (en) 1995-07-18
CA2144165C (en) 2005-01-04
WO1994006621A1 (en) 1994-03-31
JPH08505095A (ja) 1996-06-04
EP0670770A1 (de) 1995-09-13
JP3309856B2 (ja) 2002-07-29

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