IL112794A - Process and device for the production of contact lenses - Google Patents

Process and device for the production of contact lenses

Info

Publication number
IL112794A
IL112794A IL112794A IL11279495A IL112794A IL 112794 A IL112794 A IL 112794A IL 112794 A IL112794 A IL 112794A IL 11279495 A IL11279495 A IL 11279495A IL 112794 A IL112794 A IL 112794A
Authority
IL
Israel
Prior art keywords
mould
lens material
mould part
lens
halves
Prior art date
Application number
IL112794A
Other languages
English (en)
Hebrew (he)
Other versions
IL112794A0 (en
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of IL112794A0 publication Critical patent/IL112794A0/xx
Publication of IL112794A publication Critical patent/IL112794A/en

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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/041—Feeding of the material to be moulded, e.g. into a mould cavity using filling or dispensing heads placed in closed moulds or in contact with mould walls
    • 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
    • B29C33/0055—Moulds or cores; Details thereof or accessories therefor with incorporated overflow cavities
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/40—Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded 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
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • 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
    • B29D11/0023—Transferring contact 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3444—Feeding the material to the mould or the compression means using pressurising feeding means located in the mould, e.g. plungers or pistons
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • B29C2043/3634—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices having specific surface shape, e.g. grooves, projections, corrugations
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B29C2043/503—Removing moulded articles using ejector pins, rods
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/5625—Closing of the feed opening before or during compression
    • 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
    • B29K2823/00—Use of polyalkenes or derivatives thereof as mould material
    • B29K2823/10—Polymers of propylene
    • B29K2823/12—PP, i.e. polypropylene
    • 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)
  • Robotics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lenses (AREA)
  • Glass Compositions (AREA)
IL112794A 1994-03-07 1995-02-27 Process and device for the production of contact lenses IL112794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94810141 1994-03-07

Publications (2)

Publication Number Publication Date
IL112794A0 IL112794A0 (en) 1995-05-26
IL112794A true IL112794A (en) 1998-02-08

Family

ID=8218219

Family Applications (1)

Application Number Title Priority Date Filing Date
IL112794A IL112794A (en) 1994-03-07 1995-02-27 Process and device for the production of contact lenses

Country Status (18)

Country Link
US (1) US5776381A (xx)
EP (1) EP0671249B1 (xx)
JP (1) JP3703873B2 (xx)
CN (1) CN1057959C (xx)
AT (1) ATE189155T1 (xx)
AU (1) AU700615B2 (xx)
CA (1) CA2143901A1 (xx)
DE (1) DE59507663D1 (xx)
DK (1) DK0671249T3 (xx)
ES (1) ES2143608T3 (xx)
FI (1) FI108008B (xx)
GR (1) GR3033053T3 (xx)
IL (1) IL112794A (xx)
NO (1) NO309370B1 (xx)
NZ (1) NZ270623A (xx)
PT (1) PT671249E (xx)
TW (1) TW258686B (xx)
ZA (1) ZA951825B (xx)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075439C (zh) * 1997-03-25 2001-11-28 诺瓦提斯公司 模塑方法
US6113817A (en) * 1997-03-25 2000-09-05 Novartis Ag Molding processes
NL1005773C2 (nl) * 1997-04-09 1998-10-12 Meho Eco Mach Machinebouw Nede Inrichting en werkwijze voor het onder toevoer van warmte uit een min of meer vloeibaar uitgangsmateriaal vormen van vaste produkten in een matrijs.
US6270698B1 (en) 1999-05-25 2001-08-07 American Greetings Corp. Stress-relieved acrylic optical lenses and methods for manufacture by injection coining molding
US6368522B1 (en) * 2000-01-03 2002-04-09 Johnson & Johnson Vision Care, Inc. Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture
DE60209180T2 (de) * 2001-01-24 2006-09-28 Novartis Ag Verfahren zur Herstellung von Linsen
EP1245372B1 (en) 2001-03-26 2011-09-28 Novartis AG Mould and method for the production of ophthalmic lenses
JP4152193B2 (ja) * 2001-04-27 2008-09-17 アイセンス・アクチエンゲゼルシャフト 血中グルコース濃度計測装置
JP2007520367A (ja) * 2003-07-31 2007-07-26 ヒューマン，ジャン，ペトラス 成形方法及び装置
CN1302296C (zh) * 2005-03-10 2007-02-28 今湛光学科技股份有限公司 可精准对位于影像撷取镜头的镜片
MY161660A (en) * 2005-05-04 2017-04-28 Novartis Ag Automated inspection of colored contact lenses
CN1876583B (zh) * 2005-06-08 2010-12-08 鸿富锦精密工业（深圳）有限公司 镜片成型模具
FR2890229B1 (fr) * 2005-08-31 2007-11-09 St Microelectronics Sa Procede de formation d'un condensateur variable
CN100591506C (zh) * 2005-11-04 2010-02-24 鸿富锦精密工业（深圳）有限公司 模仁安装高度可调节的模具
US20100163514A1 (en) * 2006-02-08 2010-07-01 Jan Petrus Human Apparatus and method for compression moulding parisons and blow moulding multi layered bottles
CN100573300C (zh) * 2006-05-19 2009-12-23 鸿富锦精密工业（深圳）有限公司 镜片制程
US7931845B2 (en) * 2007-05-21 2011-04-26 O & D Manufacturing Gravity injection of molding material for compression molding and related methods
US9059240B2 (en) * 2012-06-05 2015-06-16 International Business Machines Corporation Fixture for shaping a laminate substrate
GB201302268D0 (en) 2013-02-08 2013-03-27 Ocutec Ltd Molding Apparatus and Method
CN104142261B (zh) * 2014-07-14 2016-09-07 中国矿业大学 一种超声波除泡快速制作粉煤光片的方法及装置
US10607335B2 (en) * 2016-06-28 2020-03-31 Johnson & Johnson Vision Care, Inc. Systems and methods of using absorptive imaging metrology to measure the thickness of ophthalmic lenses
WO2021154692A1 (en) 2020-01-27 2021-08-05 Clearlab Sg Pte Ltd. Actinically-crosslinkable polysiloxane-polyglycerol block copolymers and methods of making and use thereof
CN114953308B (zh) * 2022-04-29 2024-08-06 上海熹贾精密技术有限公司 一种飞边自动分离的模具及其控制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380718A (en) * 1964-07-20 1968-04-30 Neefe Hamilton Res Company Process for molding high quality plastic lenses
US3670066A (en) * 1969-11-10 1972-06-13 Emery I Valyi Method of compression molding a thermoplastic article with walls of variable thickness
US4008031A (en) * 1975-08-22 1977-02-15 Weber Hermann P Apparatus for injection molding lenses
JPS6030529B2 (ja) * 1977-04-28 1985-07-17 日本コンタクトレンズ製造株式会社 シリコン樹脂製コンタクトレンズの製造用成形型
FR2416104A1 (fr) * 1978-02-07 1979-08-31 Essilor Int Dispositif de moulage, en particulier pour lentille de contact souple
FR2530181A1 (fr) * 1982-07-16 1984-01-20 Essilor Int Procede et dispositif pour le moulage d'un element optique en matiere synthetique
JPS6334108A (ja) * 1986-07-30 1988-02-13 Hitachi Ltd 光デイスク用基板の製造方法および装置
US4865779A (en) * 1987-12-15 1989-09-12 Minnesota Mining And Manufacturing Company Lens molding apparatus and method
US5415817A (en) * 1993-10-22 1995-05-16 Industrial Technology Research Institute Process for molding plastic lenses

Also Published As

Publication number Publication date
CN1112054A (zh) 1995-11-22
JP3703873B2 (ja) 2005-10-05
NZ270623A (en) 1997-01-29
NO950860D0 (no) 1995-03-06
CN1057959C (zh) 2000-11-01
FI108008B (fi) 2001-11-15
ZA951825B (en) 1995-09-07
DE59507663D1 (de) 2000-03-02
GR3033053T3 (en) 2000-08-31
FI950982A0 (fi) 1995-03-03
NO309370B1 (no) 2001-01-22
DK0671249T3 (da) 2000-06-26
AU700615B2 (en) 1999-01-07
PT671249E (pt) 2000-07-31
NO950860L (no) 1995-09-08
TW258686B (xx) 1995-10-01
ATE189155T1 (de) 2000-02-15
EP0671249B1 (de) 2000-01-26
IL112794A0 (en) 1995-05-26
JPH07256658A (ja) 1995-10-09
EP0671249A1 (de) 1995-09-13
AU1355395A (en) 1995-09-14
ES2143608T3 (es) 2000-05-16
FI950982A (fi) 1995-09-08
US5776381A (en) 1998-07-07
CA2143901A1 (en) 1995-09-08

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