IL111873A - 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
IL111873A
IL111873A IL111873A IL11187394A IL111873A IL 111873 A IL111873 A IL 111873A IL 111873 A IL111873 A IL 111873A IL 11187394 A IL11187394 A IL 11187394A IL 111873 A IL111873 A IL 111873A
Authority
IL
Israel
Prior art keywords
mold
contact lens
manufacture
mold half
halves
Prior art date
Application number
IL111873A
Other versions
IL111873A0 (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
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=IL111873(A) "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 IL111873A0 publication Critical patent/IL111873A0/en
Publication of IL111873A publication Critical patent/IL111873A/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

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)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Manufacture Of Switches (AREA)

Abstract

A process for the manufacture of contact lenses, in which process a polymerizable contact lens material is dispensed into a one mold half, the mold is subsequently closed by means of the second mold half and then the material located in the mold cavity between the two mold halves is polymerized, thus forming an as yet unhydrated contact lens, said process comprising pretreating the molding surface of one of the two mold halves, before use, in a region corresponding to the area extending from outside the optically active zone to the edge of the contact lens in such a manner that, when the mold is opened, the contact lens adheres to the pretreated mold half.
IL111873A 1993-12-13 1994-12-05 Process and apparatus for the manufacture of a contact lens IL111873A (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IL111873A0 IL111873A0 (en) 1995-03-15
IL111873A true IL111873A (en) 1997-06-10

Family

ID=8215087

Family Applications (1)

Application Number Title Priority Date Filing Date
IL111873A IL111873A (en) 1993-12-13 1994-12-05 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
MY144506A (en) * 2005-05-04 2011-09-30 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
US9878473B2 (en) 2012-06-19 2018-01-30 Menicon Nect Co., Ltd 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
EP3105042A1 (en) * 2014-02-11 2016-12-21 The Manchester Metropolitan University Artificial eyes and manufacture thereof
CN108541232B (en) * 2015-12-22 2021-04-09 爱尔康公司 Method for manufacturing contact lenses
CN109803815B (en) 2016-10-14 2021-06-11 爱尔康公司 Method for manufacturing 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
GR3031552T3 (en) 2000-01-31
DK0657264T3 (en) 2000-02-07
EP0657264B1 (en) 1999-07-21
FI945797A0 (en) 1994-12-09
AU694145B2 (en) 1998-07-16
CN1110212A (en) 1995-10-18
IL111873A0 (en) 1995-03-15
ES2136721T3 (en) 1999-12-01
EP0657264A1 (en) 1995-06-14
AU8037394A (en) 1995-06-22
NO944807D0 (en) 1994-12-12
JPH07195558A (en) 1995-08-01
NZ270119A (en) 1996-06-25
NO944807L (en) 1995-06-14
ATE182287T1 (en) 1999-08-15
ZA949862B (en) 1995-06-14
JP3110268B2 (en) 2000-11-20
FI945797A (en) 1995-06-14
CA2137765A1 (en) 1995-06-14
DE59408513D1 (en) 1999-08-26

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Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees