DE69712934D1 - Vorrichtung und Verfahren zur Herstellung einer Linse-Giessform mit einer sich im deren Zentrum befindenden Düse zur Herstellung von Kontakt-Linsen - Google Patents

Vorrichtung und Verfahren zur Herstellung einer Linse-Giessform mit einer sich im deren Zentrum befindenden Düse zur Herstellung von Kontakt-Linsen

Info

Publication number
DE69712934D1
DE69712934D1 DE69712934T DE69712934T DE69712934D1 DE 69712934 D1 DE69712934 D1 DE 69712934D1 DE 69712934 T DE69712934 T DE 69712934T DE 69712934 T DE69712934 T DE 69712934T DE 69712934 D1 DE69712934 D1 DE 69712934D1
Authority
DE
Germany
Prior art keywords
producing
contact lenses
center
nozzle
lens mold
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 - Lifetime
Application number
DE69712934T
Other languages
English (en)
Other versions
DE69712934T2 (de
Inventor
Thomas A Matiacio
Keith T O'brien
Victor Lust
Kornelis Renkema
Jeffrey H Roffman
Der Meulen Wybren Van
Franciscus Paridaans
Lievenoogen Jan Van
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.)
Johnson and Johnson Vision Care Inc
Original Assignee
Johnson and Johnson Vision Products 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 Johnson and Johnson Vision Products Inc filed Critical Johnson and Johnson Vision Products Inc
Publication of DE69712934D1 publication Critical patent/DE69712934D1/de
Application granted granted Critical
Publication of DE69712934T2 publication Critical patent/DE69712934T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B29C33/0077—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the mould filling gate ; accessories for connecting the mould filling gate with the filling spout
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0027—Gate or gate mark locations
    • B29C2045/0029—Gate or gate mark locations gates on the central optical axis of lenses
    • 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
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • 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)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
DE69712934T 1996-02-09 1997-02-07 Vorrichtung und Verfahren zur Herstellung einer Linse-Giessform mit einer sich im deren Zentrum befindenden Düse zur Herstellung von Kontakt-Linsen Expired - Lifetime DE69712934T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/598,883 US5716540A (en) 1996-02-09 1996-02-09 Apparatus and method for producing center gated lens molds for contact lens manufacture

Publications (2)

Publication Number Publication Date
DE69712934D1 true DE69712934D1 (de) 2002-07-11
DE69712934T2 DE69712934T2 (de) 2002-11-21

Family

ID=24397314

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69712934T Expired - Lifetime DE69712934T2 (de) 1996-02-09 1997-02-07 Vorrichtung und Verfahren zur Herstellung einer Linse-Giessform mit einer sich im deren Zentrum befindenden Düse zur Herstellung von Kontakt-Linsen

Country Status (9)

Country Link
US (1) US5716540A (de)
EP (1) EP0788872B1 (de)
JP (1) JPH09327845A (de)
AT (1) ATE218436T1 (de)
AU (1) AU699549B2 (de)
CA (1) CA2196962C (de)
DE (1) DE69712934T2 (de)
SG (1) SG106030A1 (de)
TW (1) TW552191B (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875354B1 (de) * 1996-01-18 2002-10-02 Hoya Corporation Verfahren zum herstellen einer linse,spritzgiessformwerkzeug zum herstellen einer linse und hergestellte linse
US6432511B1 (en) * 1997-06-06 2002-08-13 International Business Machines Corp. Thermoplastic adhesive preform for heat sink attachment
WO1999000241A1 (en) * 1997-06-30 1999-01-07 Bausch & Lomb Incorporated Injection molding process for rotationally asymmetric contact lens surfaces
US6592356B1 (en) * 1999-05-05 2003-07-15 Johnson & Johnson Vision Care, Inc. Mold, molding system and molding machine for making ophthalmic devices
JP4183418B2 (ja) * 1999-09-01 2008-11-19 株式会社トーメー コンタクトレンズ材の製造方法及び装置並びにそれに用いられる射出成形用金型
JP4166397B2 (ja) * 2000-01-13 2008-10-15 アルプス電気株式会社 光学部材の製造方法
IT1317239B1 (it) * 2000-04-13 2003-05-27 Andrea Fallini Metodo e apparecchiatura per la realizzazione di lenti spesse inmateriale plastico.
US6708397B2 (en) * 2001-08-09 2004-03-23 Johnson & Johnson Vision Care, Inc. Inlay station with alignment assemblies and transfer tubes
US6976639B2 (en) * 2001-10-29 2005-12-20 Edc Biosystems, Inc. Apparatus and method for droplet steering
JP2003287604A (ja) * 2002-03-27 2003-10-10 Japan Science & Technology Corp 光学レンズの製造方法および光ファイバコネクタの製造方法
US7499220B2 (en) * 2003-08-08 2009-03-03 Alps Electric Co., Ltd. Optical lens and method of manufacturing the same
JP2006058850A (ja) * 2004-07-22 2006-03-02 Alps Electric Co Ltd 光学レンズ及びその製造方法
US7278173B2 (en) 2004-04-08 2007-10-09 Nike, Inc. Adjustable baseball cap
US7585167B2 (en) * 2004-12-30 2009-09-08 Bausch + Lomb Incorporated Core locking assembly and method for orientation of asymmetric tooling
US20060145372A1 (en) * 2004-12-30 2006-07-06 Jones Thomas G Optical tool assembly for improved RCW and lens edge formation
US7704069B2 (en) * 2005-12-20 2010-04-27 R&D Tool & Engineering Co. Injection molding apparatus having swiveling nozzles
US7771189B2 (en) * 2008-03-03 2010-08-10 R&D Tool & Engineering Co. Injection molding apparatus with replaceable gate insert
CN101618589B (zh) * 2008-06-30 2012-09-19 鸿富锦精密工业（深圳）有限公司 镜片模具
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
NL2006921C2 (nl) * 2011-06-09 2012-12-11 Innovalens B V Gietmal voor het vervaardigen van contactlenzen of intra-oculaire lenzen.
US9283718B2 (en) 2012-05-25 2016-03-15 Johnson & Johnson Vision Care, Inc. Reduced-tilt back plastic feature for a contact lens mold
MY174645A (en) * 2013-09-11 2020-05-05 Alcon Inc Gripper for a contact lens and process for transporting a contact lens
JP6050801B2 (ja) * 2014-10-30 2016-12-21 双葉電子工業株式会社 バルブゲート装置及び射出成形用金型
US9937640B2 (en) 2014-12-19 2018-04-10 Coopervision International Holding Company, Lp Apparatus and method for closure of ophthalmic lens molds
US9938034B2 (en) 2014-12-19 2018-04-10 Coopervision International Holding Company, Lp Method and apparatus relating to manufacture of molds for forming contact lenses
US10137612B2 (en) 2014-12-19 2018-11-27 Coopervision International Holding Company, Lp Methods and apparatus for manufacture of ophthalmic lenses
US10029402B2 (en) 2014-12-19 2018-07-24 Coopervision International Holding Company, Lp Method and apparatus for manufacturing contact lenses
US9764501B2 (en) 2014-12-19 2017-09-19 Coopervision International Holding Company, Lp Contact lens mold parts, contact lens mold assemblies, and methods of making 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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284591A (en) * 1980-04-28 1981-08-18 Neefe Optica Lab Inc. Injection molding of optical lenses and optical molds
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
JPS60122128A (ja) * 1983-12-06 1985-06-29 Ricoh Co Ltd 射出圧縮成形型
JPS61258718A (ja) * 1985-05-10 1986-11-17 Matsushita Electric Ind Co Ltd プラスチツク光学装置
DE3543357A1 (de) * 1985-12-07 1987-06-11 Bayer Ag Verfahren und vorrichtung zur herstellung von kontaktlinsen-rohlingen mit fertig ausgebildeten rueckflaechen-geometrien
US4836960A (en) * 1987-10-05 1989-06-06 Sola Usa, Inc. Fabrication of thermoplastic optical components by injection/compression molding
DE8817021U1 (de) * 1988-10-05 1992-03-19 Otto Hofstetter Ag, Uznach Vorrichtung zum Spritzgiessen von PET-Formlingen und Anguss-System
JPH0447912A (ja) * 1990-06-15 1992-02-18 Matsushita Electric Ind Co Ltd プラスチックレンズの射出成形用金型及びその製造方法
DE69317293T2 (de) * 1992-09-29 1998-07-09 Bausch & Lomb Verfahren zum herstellen von plastikformen und verfahren zum giessen von kontaktlinsen
US5601759A (en) * 1993-10-05 1997-02-11 Bausch & Lomb Incorporated Method for molding contact lenses
US5632936A (en) * 1994-05-04 1997-05-27 Ciba-Geigy Ag Method and apparatus for molding ophthalmic lenses using vacuum injection

Also Published As

Publication number Publication date
JPH09327845A (ja) 1997-12-22
EP0788872A3 (de) 1997-10-15
TW552191B (en) 2003-09-11
DE69712934T2 (de) 2002-11-21
CA2196962C (en) 2009-04-14
CA2196962A1 (en) 1997-08-10
MX9701082A (es) 1998-05-31
AU1258897A (en) 1997-08-14
AU699549B2 (en) 1998-12-10
EP0788872B1 (de) 2002-06-05
ATE218436T1 (de) 2002-06-15
SG106030A1 (en) 2004-09-30
EP0788872A2 (de) 1997-08-13
US5716540A (en) 1998-02-10

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Representative=s name: BOEHMERT & BOEHMERT, 28209 BREMEN