NO944807L - Method and apparatus for making a contact lens - Google Patents

Method and apparatus for making a contact lens

Info

Publication number
NO944807L
NO944807L NO944807A NO944807A NO944807L NO 944807 L NO944807 L NO 944807L NO 944807 A NO944807 A NO 944807A NO 944807 A NO944807 A NO 944807A NO 944807 L NO944807 L NO 944807L
Authority
NO
Norway
Prior art keywords
mould
contact lens
contact
making
lens
Prior art date
Application number
NO944807A
Other languages
Norwegian (no)
Other versions
NO944807D0 (en
Inventor
Karlheinz Boneberger
Lothar Haase
Horst Schafer
Werner Steffan
Peter Zang
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
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=NO944807(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of NO944807D0 publication Critical patent/NO944807D0/en
Publication of NO944807L publication Critical patent/NO944807L/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
    • 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

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>
NO944807A 1993-12-13 1994-12-12 Method and apparatus for making a contact lens NO944807L (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
NO944807D0 NO944807D0 (en) 1994-12-12
NO944807L true NO944807L (en) 1995-06-14

Family

ID=8215087

Family Applications (1)

Application Number Title Priority Date Filing Date
NO944807A NO944807L (en) 1993-12-13 1994-12-12 Method and apparatus for making 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
WO2005090060A2 (en) * 2004-03-24 2005-09-29 Novartis Ag 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
WO2013191148A1 (en) * 2012-06-19 2013-12-27 株式会社メニコンネクト Multilayer contact lens and production process therefor
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
CN108541232B (en) * 2015-12-22 2021-04-09 爱尔康公司 Method for manufacturing contact lenses
SG10202103737YA (en) 2016-10-14 2021-05-28 Alcon Inc Method for producing contact lenses

Family Cites Families (7)

* 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
GB8601967D0 (en) * 1986-01-28 1986-03-05 Coopervision Optics Manufacturing contact lenses
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
US5326505A (en) * 1992-12-21 1994-07-05 Johnson & Johnson Vision Products, Inc. Method for treating an ophthalmic lens mold

Also Published As

Publication number Publication date
FI945797A (en) 1995-06-14
DE59408513D1 (en) 1999-08-26
DK0657264T3 (en) 2000-02-07
ZA949862B (en) 1995-06-14
EP0657264B1 (en) 1999-07-21
FI945797A0 (en) 1994-12-09
ES2136721T3 (en) 1999-12-01
NZ270119A (en) 1996-06-25
JPH07195558A (en) 1995-08-01
JP3110268B2 (en) 2000-11-20
IL111873A0 (en) 1995-03-15
GR3031552T3 (en) 2000-01-31
IL111873A (en) 1997-06-10
AU694145B2 (en) 1998-07-16
NO944807D0 (en) 1994-12-12
ATE182287T1 (en) 1999-08-15
CN1110212A (en) 1995-10-18
CA2137765A1 (en) 1995-06-14
AU8037394A (en) 1995-06-22
EP0657264A1 (en) 1995-06-14

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