AU694145B2 - Process and apparatus for the manufacture of a contact lens - Google Patents

Process and apparatus for the manufacture of a contact lens

Info

Publication number
AU694145B2
AU694145B2 AU80373/94A AU8037394A AU694145B2 AU 694145 B2 AU694145 B2 AU 694145B2 AU 80373/94 A AU80373/94 A AU 80373/94A AU 8037394 A AU8037394 A AU 8037394A AU 694145 B2 AU694145 B2 AU 694145B2
Authority
AU
Australia
Prior art keywords
mould
contact lens
contact
manufacture
lens
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
AU80373/94A
Other versions
AU8037394A (en
Inventor
Karlheinz Boneberger
Lothar Haase
Horst Dr. Schafer
Werner Steffan
Peter Zang
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.)
Novartis AG
Original Assignee
Novartis 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8215087&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU694145(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Novartis AG filed Critical Novartis AG
Publication of AU8037394A publication Critical patent/AU8037394A/en
Assigned to NOVARTIS AG reassignment NOVARTIS AG Amend patent request/document other than specification (104) Assignors: CIBA-GEIGY AG
Application granted granted Critical
Publication of AU694145B2 publication Critical patent/AU694145B2/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
    • 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
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • 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
    • B29D11/00057—Production of contact lenses characterised by the shape or surface condition of the edge, e.g. flashless, burrless, smooth
    • 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
    • B29L2031/757—Moulds, cores, dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Manufacture Of Switches (AREA)

Abstract

In a process for the production of contact lenses, polymerisable contact-lens material is dispensed into one mould half (1) and subsequently the mould is closed by mean of the second mould half (2). The material located in the mould cavity (12) between the two mould halves is subsequently polymerised and thus a still unhydrated contact lens (CL) is formed. The moulding surface of one of the two mould halves (1,2) is pretreated before its use in a region (20) outside the optically effective zone of the contact lens (CL) in such a way that the contact lens (CL) adheres to the pretreated mould half when the mould is opened. <IMAGE>
AU80373/94A 1993-12-13 1994-12-12 Process and apparatus for the manufacture of a contact lens Ceased AU694145B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93810872 1993-12-13
EP93810872 1993-12-13

Publications (2)

Publication Number Publication Date
AU8037394A AU8037394A (en) 1995-06-22
AU694145B2 true AU694145B2 (en) 1998-07-16

Family

ID=8215087

Family Applications (1)

Application Number Title Priority Date Filing Date
AU80373/94A Ceased AU694145B2 (en) 1993-12-13 1994-12-12 Process and apparatus for the manufacture of a contact lens

Country Status (15)

Country Link
EP (1) EP0657264B1 (en)
JP (1) JP3110268B2 (en)
CN (1) CN1110212A (en)
AT (1) ATE182287T1 (en)
AU (1) AU694145B2 (en)
CA (1) CA2137765A1 (en)
DE (1) DE59408513D1 (en)
DK (1) DK0657264T3 (en)
ES (1) ES2136721T3 (en)
FI (1) FI945797A (en)
GR (1) GR3031552T3 (en)
IL (1) IL111873A (en)
NO (1) NO944807L (en)
NZ (1) NZ270119A (en)
ZA (1) ZA949862B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727671C2 (en) * 1997-06-30 2000-04-13 Woehlk Contact Linsen Gmbh Device for producing molded articles from a polymerizable mixture
JP4544710B2 (en) 1999-08-27 2010-09-15 株式会社メニコン Mold for ophthalmic lens article and method for producing ophthalmic lens article
US20050212155A1 (en) * 2004-03-24 2005-09-29 Yasuo Matsuzawa Method for producing contact lenses
MY161660A (en) * 2005-05-04 2017-04-28 Novartis Ag Automated inspection of colored contact lenses
US7320587B2 (en) * 2005-08-09 2008-01-22 Cooper Vision, Inc. Contact lens molds and systems and methods for producing same
JP4335225B2 (en) * 2006-04-19 2009-09-30 株式会社日本製鋼所 Method and apparatus for manufacturing resin molded body
US7875217B2 (en) * 2006-09-29 2011-01-25 Johnson & Johnson Vision Care, Inc. Excess polymer ring removal during ophthalmic lens manufacture
TW200918294A (en) * 2007-10-17 2009-05-01 Unicon Optical Co Ltd Method and die for forming contact lens
JP5621117B2 (en) * 2012-06-19 2014-11-05 株式会社メニコンネクト Multilayer contact lens and manufacturing method thereof
WO2015001584A1 (en) * 2013-07-02 2015-01-08 株式会社メニコン Contact lens and method for manufacturing contact lens
CN106232339A (en) * 2014-02-11 2016-12-14 曼彻斯特城市大学 Artificial eye and manufacture thereof
SG11201803719RA (en) * 2015-12-22 2018-07-30 Novartis Ag Process for manufacturing contact lenses
WO2018069869A1 (en) 2016-10-14 2018-04-19 Novartis Ag Method for producing contact lenses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955580A (en) * 1986-01-28 1990-09-11 Coopervision Optics Limited Contact lens mold
AU5242493A (en) * 1992-12-21 1994-06-30 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074480B (en) * 1953-12-02 1960-01-28 Rieter Werke Dipl Ing Walter Handle K G Konstanz (Bodensee) Device for releasing pressed molded bodies made of plastic ceramic masses from emer metal mold
FR1497746A (en) * 1965-10-21 1967-10-13 Continental Can Co Electrostatic casting process and apparatus
US4257755A (en) * 1974-06-25 1981-03-24 Lemelson Jerome H Molding system and method
AU633749B2 (en) * 1990-08-02 1993-02-04 Novartis Ag Contact lens casting
US5294379A (en) * 1992-09-18 1994-03-15 Johnson & Johnson Vision Products, Inc. Laser assisted demolding of ophthalmic lenses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955580A (en) * 1986-01-28 1990-09-11 Coopervision Optics Limited Contact lens mold
AU5242493A (en) * 1992-12-21 1994-06-30 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold

Also Published As

Publication number Publication date
EP0657264A1 (en) 1995-06-14
NO944807L (en) 1995-06-14
CN1110212A (en) 1995-10-18
ATE182287T1 (en) 1999-08-15
AU8037394A (en) 1995-06-22
DE59408513D1 (en) 1999-08-26
DK0657264T3 (en) 2000-02-07
ZA949862B (en) 1995-06-14
CA2137765A1 (en) 1995-06-14
GR3031552T3 (en) 2000-01-31
EP0657264B1 (en) 1999-07-21
FI945797A0 (en) 1994-12-09
IL111873A (en) 1997-06-10
NO944807D0 (en) 1994-12-12
ES2136721T3 (en) 1999-12-01
NZ270119A (en) 1996-06-25
JP3110268B2 (en) 2000-11-20
FI945797A (en) 1995-06-14
JPH07195558A (en) 1995-08-01
IL111873A0 (en) 1995-03-15

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired