CA1135913A - Production process of lenses made of polymerizable synthetics resins - Google Patents

Production process of lenses made of polymerizable synthetics resins

Info

Publication number
CA1135913A
CA1135913A CA000327575A CA327575A CA1135913A CA 1135913 A CA1135913 A CA 1135913A CA 000327575 A CA000327575 A CA 000327575A CA 327575 A CA327575 A CA 327575A CA 1135913 A CA1135913 A CA 1135913A
Authority
CA
Canada
Prior art keywords
polymerizable
mold
accordance
monomer
cavity
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
Application number
CA000327575A
Other languages
English (en)
French (fr)
Inventor
Giorgio M. Padoan
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.)
Italiana Lenti Sil-SRL Soc
Original Assignee
Italiana Lenti Sil-SRL Soc
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 Italiana Lenti Sil-SRL Soc filed Critical Italiana Lenti Sil-SRL Soc
Application granted granted Critical
Publication of CA1135913A publication Critical patent/CA1135913A/en
Expired 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
    • B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
    • 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
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—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
    • B29L2031/00—Other particular articles
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
CA000327575A 1978-05-12 1979-05-11 Production process of lenses made of polymerizable synthetics resins Expired CA1135913A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23319/78A IT1094754B (it) 1978-05-12 1978-05-12 Procedimento per la fabbricazione tramite colata a compensazione continua di lenti o mezzi ottici in resine sintetiche polimerizzabili
IT23319A/78 1978-05-12

Publications (1)

Publication Number Publication Date
CA1135913A true CA1135913A (en) 1982-11-23

Family

ID=11206027

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000327575A Expired CA1135913A (en) 1978-05-12 1979-05-11 Production process of lenses made of polymerizable synthetics resins

Country Status (22)

Country Link
JP (1) JPS54149765A (it)
AT (1) AT391296B (it)
AU (1) AU526381B2 (it)
BE (1) BE876149A (it)
BR (1) BR7902929A (it)
CA (1) CA1135913A (it)
CH (1) CH641402A5 (it)
DE (2) DE2954548C2 (it)
DK (1) DK162590C (it)
ES (1) ES480497A1 (it)
FR (1) FR2425314A1 (it)
GB (1) GB2021474B (it)
GR (1) GR67597B (it)
HK (1) HK73587A (it)
IE (1) IE48438B1 (it)
IL (1) IL57252A0 (it)
IT (1) IT1094754B (it)
LU (1) LU81249A1 (it)
MX (1) MX151517A (it)
NL (1) NL7903713A (it)
NO (1) NO162009C (it)
SE (1) SE432219B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1191569B (it) * 1986-02-28 1988-03-23 Nuova Sil Spa Stampo per la produzione mediante colata di lenti organiche
US6511311B1 (en) 1998-09-30 2003-01-28 Novartis Ag Lens mold carriers
WO2000018567A1 (en) * 1998-09-30 2000-04-06 Novartis Ag Lens mold carriers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1166582A (fr) * 1955-12-30 1958-11-13 Combined Optical Ind Ltd Procédé et appareil de moulage de lentilles et autres éléments optiques de précision
FR1204627A (fr) * 1958-04-25 1960-01-27 Lentilles Ophtalmiques Special Perfectionnements à la fabrication de lentilles optiques et ophtalmiques en résinesynthétique thermodurcissable
US3171869A (en) * 1959-12-07 1965-03-02 Bausch & Lomb Process for manufacturing curved optical articles
US3251908A (en) * 1962-12-05 1966-05-17 Computing Devices Canada Method and apparatus for making a curved surface
DE2303551C3 (de) * 1973-01-25 1981-05-14 Transformatoren Union Ag, 7000 Stuttgart Anlage zum Herstellen von Gießlingen aus Kunstharz im Druckgießverfahren
DE2312934C3 (de) * 1973-03-15 1980-01-24 Et. Dentaire Ivoclar, Schaan (Liechtenstein) Verfahren und Vorrichtung zur Herstellung von Dentalprothesen aus Kunststoff
GB1511901A (en) * 1974-05-06 1978-05-24 Bausch & Lomb Forming lenses and lens blanks
US4008031A (en) * 1975-08-22 1977-02-15 Weber Hermann P Apparatus for injection molding lenses

Also Published As

Publication number Publication date
SE432219B (sv) 1984-03-26
MX151517A (es) 1984-12-10
IE48438B1 (en) 1985-01-23
JPS54149765A (en) 1979-11-24
GB2021474B (en) 1982-08-11
NO162009B (no) 1989-07-17
IT7823319A0 (it) 1978-05-12
AU526381B2 (en) 1983-01-06
DE2918323A1 (de) 1979-12-06
ATA334779A (de) 1990-03-15
NO162009C (no) 1989-10-25
BE876149A (fr) 1979-09-03
IE791245L (en) 1979-11-12
GR67597B (it) 1981-08-31
AT391296B (de) 1990-09-10
DK195179A (da) 1979-11-13
BR7902929A (pt) 1979-12-04
SE7904019L (sv) 1979-11-13
FR2425314A1 (fr) 1979-12-07
AU4703279A (en) 1979-11-29
ES480497A1 (es) 1979-12-16
DK162590B (da) 1991-11-18
NL7903713A (nl) 1979-11-14
CH641402A5 (it) 1984-02-29
NO791516L (no) 1979-11-13
LU81249A1 (fr) 1979-09-10
GB2021474A (en) 1979-12-05
HK73587A (en) 1987-10-16
DE2954548C2 (it) 1992-07-23
IT1094754B (it) 1985-08-02
IL57252A0 (en) 1979-09-30
DK162590C (da) 1992-04-06
FR2425314B1 (it) 1984-01-13

Similar Documents

Publication Publication Date Title
US4497754A (en) Casting plastic lenses from thermohardening monomer with compensation for polymer expansion and shrinkage
AU643264B2 (en) Process for hydrating soft contact lenses
US3423488A (en) Process for casting resinous lenses in thermoplastic cast replica molds
SU674658A3 (ru) Форма дл изготовлени контактных линз
CA2181984C (en) Treatment of contact lenses with supercritical fluid
CS260213B1 (en) Method of polymerization casting of articles especially lenses from hydrophilic gels and equipment for realization of this method
AU592439B2 (en) Mold apparatus for use in spin casting a precisely configured article
US4382902A (en) Method for molding contact lenses using ultraviolet energy
US5149052A (en) Precision molding of polymers
EP1245372B1 (en) Mould and method for the production of ophthalmic lenses
CA2320856A1 (en) Methods of producing intraocular lenses and materials suitable for their production
EP0298805B1 (fr) Procédé de fabrication de lentille de contact en un polymère protéique naturel par moulage avant réticulation
DE68923660D1 (de) Kontaktlinse, Materialien dafür und Verfahren zur Herstellung.
DE2839249A1 (de) Verfahren zur herstellung einer weichen kontaktlinse und ausgangsloesung zur durchfuehrung des verfahrens
US2962764A (en) Process for the manufacture of molded articles
JPS6176505A (ja) 大理石類似外観を有する成形品の製造法
US3894710A (en) Mold forms coating synthetic resin lenses
JP5011601B2 (ja) ポリマーおよびそれを用いた眼用レンズ
CA1135913A (en) Production process of lenses made of polymerizable synthetics resins
EP1872929A2 (en) Process for producing a plastic lens
US3894129A (en) Method of manufacture of strain free contact lenses
US2485798A (en) Process of polymerization
JPS6218225A (ja) 合成樹脂製複合レンズの製造方法及びその製造用ガスケツト
FI70232C (fi) Mjuka kontaktlinser och foerfarande foer deras framstaellning
JPH03150113A (ja) 着色した触覚を有する単一片の眼内レンズの製造に有用な複合ポリマー棒材の製造方法

Legal Events

Date Code Title Description
MKEX Expiry