ZA954807B - Method and apparatus for demolding ophthalmic contact lenses - Google Patents

Method and apparatus for demolding ophthalmic contact lenses

Info

Publication number
ZA954807B
ZA954807B ZA954807A ZA954807A ZA954807B ZA 954807 B ZA954807 B ZA 954807B ZA 954807 A ZA954807 A ZA 954807A ZA 954807 A ZA954807 A ZA 954807A ZA 954807 B ZA954807 B ZA 954807B
Authority
ZA
South Africa
Prior art keywords
mold half
contact lenses
upper mold
lenses
demolding
Prior art date
Application number
ZA954807A
Other languages
English (en)
Inventor
Finn Thrige Andersen
Ture Kindt-Larsen
Wallace Anthony Martin
Craig William Walker
Original Assignee
Johnson & Johnson Vision Prod
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 Johnson & Johnson Vision Prod filed Critical Johnson & Johnson Vision Prod
Publication of ZA954807B publication Critical patent/ZA954807B/xx

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
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00211—Demoulding, e.g. separating lenses from mould halves using heating means
    • 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
    • B29C33/20—Opening, closing or clamping
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00221—Demoulding, e.g. separating lenses from mould halves using prying means
    • 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)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Prostheses (AREA)
ZA954807A 1994-06-10 1995-06-09 Method and apparatus for demolding ophthalmic contact lenses ZA954807B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25787194A 1994-06-10 1994-06-10

Publications (1)

Publication Number Publication Date
ZA954807B true ZA954807B (en) 1996-12-09

Family

ID=22978131

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA954807A ZA954807B (en) 1994-06-10 1995-06-09 Method and apparatus for demolding ophthalmic contact lenses

Country Status (11)

Country Link
US (1) US5935492A (fr)
EP (1) EP0686487B1 (fr)
JP (1) JP3776149B2 (fr)
AT (1) ATE187386T1 (fr)
AU (1) AU709955B2 (fr)
BR (1) BR9502729A (fr)
CA (1) CA2151339C (fr)
CZ (1) CZ147595A3 (fr)
DE (1) DE69513725T2 (fr)
IL (1) IL113826A0 (fr)
ZA (1) ZA954807B (fr)

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* Cited by examiner, † Cited by third party
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AU706496B2 (en) * 1995-11-21 1999-06-17 Johnson & Johnson Vision Products, Inc. Infra-red heat source for demolding contact lenses
JP3772243B2 (ja) * 1996-09-25 2006-05-10 湘南デザイン株式会社 複製製品の成形方法
KR20000053099A (ko) * 1996-11-06 2000-08-25 스티븐 에이. 헬렁 콘택트 렌즈 주형부들을 분리시키기 위한 방법 및 장치
US6592356B1 (en) * 1999-05-05 2003-07-15 Johnson & Johnson Vision Care, Inc. Mold, molding system and molding machine for making ophthalmic devices
US6638451B1 (en) * 1999-08-31 2003-10-28 Novartis Ag Plastic casting molds
US6558584B1 (en) 2000-03-31 2003-05-06 Bausch & Lomb Incorporated Apparatus and method for handling an ophthalmic lens
GB2360730B (en) * 2000-03-31 2004-09-22 Bausch & Lomb Uk Ltd Apparatus and method for separating contact lens molds
EP1245372B1 (fr) * 2001-03-26 2011-09-28 Novartis AG Moule et procédé pour la fabrication de lentilles opthalmiques
US6663801B2 (en) * 2001-04-06 2003-12-16 Johnson & Johnson Vision Care, Inc. Silicon carbide IR-emitter heating device and method for demolding lenses
WO2002087842A1 (fr) * 2001-05-02 2002-11-07 Concepcionlicence Ag Procede et dispositif de demoulage de lentilles moulees
JP4695797B2 (ja) * 2001-09-28 2011-06-08 株式会社メニコンネクト レンズ型開き手段及び方法
US20050056955A1 (en) * 2003-08-18 2005-03-17 Axel Heinrich Demolding process
DE602005006996D1 (de) * 2004-03-24 2008-07-03 Novartis Ag Verfahren zur herstellung von kontaktlinsen
US20060097415A1 (en) * 2004-11-05 2006-05-11 Watterson Robert J Jr Methods of demolding ophthalmic lenses
AU2005225127A1 (en) * 2004-11-22 2006-06-08 Johnson & Johnson Vision Care, Inc. Multistage ophthalmic lens demold
US9102110B2 (en) * 2005-08-09 2015-08-11 Coopervision International Holding Company, Lp Systems and methods for removing lenses from lens molds
US7799249B2 (en) 2005-08-09 2010-09-21 Coopervision International Holding Company, Lp Systems and methods for producing silicone hydrogel contact lenses
CA2641322C (fr) * 2006-02-01 2014-03-25 Johnson & Johnson Vision Care, Inc. Commande d'axe dans la production de verres de contact toriques
MX2008011877A (es) * 2006-03-20 2008-11-28 Coopervision Int Holding Co Lp Auxiliares para desprendimiento de moldes de hidrogeles de silicona y metodos relacionados.
US8231218B2 (en) 2006-06-15 2012-07-31 Coopervision International Holding Company, Lp Wettable silicone hydrogel contact lenses and related compositions and methods
CN101516610B (zh) * 2006-09-21 2012-09-05 诺瓦提斯公司 隐形眼镜的脱模方法
US20080217800A1 (en) * 2007-03-06 2008-09-11 Kernick Edward R Method for stabilizing lens mold assembly
CN101579907B (zh) * 2008-05-16 2013-05-08 鸿富锦精密工业（深圳）有限公司 分模装置
US20100109176A1 (en) * 2008-11-03 2010-05-06 Chris Davison Machined lens molds and methods for making and using same
US8313675B2 (en) * 2009-08-31 2012-11-20 Coopervision International Holding Company, Lp Demolding of ophthalmic lenses during the manufacture thereof
US9623614B2 (en) 2010-11-10 2017-04-18 Novartis Ag Method for making contact lenses
EP3526017B1 (fr) 2016-10-14 2025-11-26 Alcon Inc. Procédé de production de lentilles de contact
US10967544B2 (en) * 2017-12-01 2021-04-06 Himax Technologies Limited Mold separation device and separation method thereof
CN109955420B (zh) * 2017-12-14 2021-05-18 奇景光电股份有限公司 模具分离装置及其分离方法
CN113400529B (zh) * 2021-07-01 2023-07-21 西朗自动化设备(常州)有限公司 隐形眼镜脱模取片机及其脱模取片方法

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US3624672A (en) * 1968-06-13 1971-11-30 Phillips Petroleum Co Molding of cellular objects
US4121896A (en) 1976-03-24 1978-10-24 Shepherd Thomas H Apparatus for the production of contact lenses
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
US4495313A (en) 1981-04-30 1985-01-22 Mia Lens Production A/S Preparation of hydrogel for soft contact lens with water displaceable boric acid ester
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
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JPS60192606A (ja) * 1984-03-14 1985-10-01 Du Pont Mitsui Fluorochem Co Ltd プラスチツク成形物をガラス型から剥離する方法
JPS6178613A (ja) * 1984-09-26 1986-04-22 Mitsubishi Rayon Co Ltd 重合体成形物の製造方法
JPS61283509A (ja) * 1985-06-10 1986-12-13 Shimada Phys & Chem Ind Co Ltd プラスチツクレンズの母型からの分離方法
CA1263208A (fr) * 1985-12-19 1989-11-28 Kirk K.S. Hwang Methode et machine pour la fabrication de dispositifs optiques
US4889664A (en) 1988-11-25 1989-12-26 Vistakon, Inc. Method of forming shaped hydrogel articles including contact lenses
US5039459A (en) 1988-11-25 1991-08-13 Johnson & Johnson Vision Products, Inc. Method of forming shaped hydrogel articles including contact lenses
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US5080839A (en) 1990-04-17 1992-01-14 Johnson & Johnson Vision Products, Inc. Process for hydrating soft contact lenses
FR2662969B1 (fr) * 1990-06-08 1992-10-16 Anver Appareil de moulage haute frequence de matiere plastique.
JPH0459314A (ja) * 1990-06-29 1992-02-26 Toray Ind Inc プラスチック製レンズの離型方法およびその装置
IL102556A (en) * 1991-08-16 1998-02-08 Johnson & Johnson Vision Prod Apparatus and method for releasably fusing mold lens pieces
US5294379A (en) * 1992-09-18 1994-03-15 Johnson & Johnson Vision Products, Inc. Laser assisted demolding of ophthalmic lenses
US5326505A (en) * 1992-12-21 1994-07-05 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold
US5850107A (en) * 1994-06-10 1998-12-15 Johnson & Johnson Vision Products, Inc. Mold separation method and apparatus

Also Published As

Publication number Publication date
US5935492A (en) 1999-08-10
EP0686487B1 (fr) 1999-12-08
JP3776149B2 (ja) 2006-05-17
AU709955B2 (en) 1999-09-09
DE69513725T2 (de) 2000-06-08
EP0686487A3 (fr) 1996-11-20
AU2056895A (en) 1995-12-21
CA2151339C (fr) 2006-06-06
IL113826A0 (en) 1995-08-31
DE69513725D1 (de) 2000-01-13
ATE187386T1 (de) 1999-12-15
CZ147595A3 (en) 1996-02-14
BR9502729A (pt) 1996-03-12
EP0686487A2 (fr) 1995-12-13
JPH0899370A (ja) 1996-04-16
CA2151339A1 (fr) 1995-12-11

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