FR2425314A1 - Procede de fabrication de lentilles en resines synthetiques polymerisables - Google Patents

Procede de fabrication de lentilles en resines synthetiques polymerisables

Info

Publication number
FR2425314A1
FR2425314A1 FR7912078A FR7912078A FR2425314A1 FR 2425314 A1 FR2425314 A1 FR 2425314A1 FR 7912078 A FR7912078 A FR 7912078A FR 7912078 A FR7912078 A FR 7912078A FR 2425314 A1 FR2425314 A1 FR 2425314A1
Authority
FR
France
Prior art keywords
mold
lenses
synthetic resins
depending
monomer
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.)
Granted
Application number
FR7912078A
Other languages
English (en)
Other versions
FR2425314B1 (fr
Inventor
Giorgo Maria 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
Original Assignee
ITALIANA LENTI
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 filed Critical ITALIANA LENTI
Publication of FR2425314A1 publication Critical patent/FR2425314A1/fr
Application granted granted Critical
Publication of FR2425314B1 publication Critical patent/FR2425314B1/fr
Granted 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

Abstract

SELON LE PROCEDE DE FABRICATION, ON OBTIENT DES LENTILLES EN RESINES SYNTHETIQUES PAR COULAGE D'UN MONOMERE CATALYSE QUI EST POLYMERISE JUSQU'AU DURCISSEMENT PAR CHAUFFAGE A L'INTERIEUR D'UN MOULE CONSTITUE D'AU MOINS DEUX LENTILLES EN VERRE, ASSEMBLEES ENTRE ELLES PAR UNE GARNITURE PERIPHERIQUE ET UN RESSORT. SELON LE PROCEDE, LA RETRACTION DU POLYMERE EN COURS DE FORMATION EST COMPENSEE AVEC DU MONOMERE CATALYSE, PLACE EN PRESENCE D'AIR A L'EXTERIEUR DU MOULE, D'OU IL PEUT FLUER VERS L'INTERIEUR DU MOULE QUI SE TROUVE EN ABSENCE D'AIR. LE PROCEDE PERMET D'OBTENIR DES LENTILLES EN POLYMERE LIMPIDES ET PRESQUE INCOLORES, PRESENTANT D'EXCELLENTES CARACTERISTIQUES PHYSICO-CHIMIQUES ET UN DIAMETRE PRESQUE EGAL A CELUI DES LENTILLES EN VERRE FORMANT LE MOULE.
FR7912078A 1978-05-12 1979-05-11 Procede de fabrication de lentilles en resines synthetiques polymerisables Granted FR2425314A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2425314A1 true FR2425314A1 (fr) 1979-12-07
FR2425314B1 FR2425314B1 (fr) 1984-01-13

Family

ID=11206027

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912078A Granted FR2425314A1 (fr) 1978-05-12 1979-05-11 Procede de fabrication de lentilles en resines synthetiques polymerisables

Country Status (22)

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

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 (fr) * 1998-09-30 2000-04-06 Novartis Ag Supports de moules de lentilles

Citations (5)

* 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
GB995694A (en) * 1962-12-05 1965-06-23 Computing Devices Canada Method and apparatus for making a curved surface
FR2270082A1 (fr) * 1974-05-06 1975-12-05 Bausch & Lomb
GB1442041A (en) * 1973-03-15 1976-07-07 Dentaire Ivoclar Ets Method of and apparatus for making plastic precision mouldings for medical and dental purposes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171869A (en) * 1959-12-07 1965-03-02 Bausch & Lomb Process for manufacturing curved optical articles
DE2303551C3 (de) * 1973-01-25 1981-05-14 Transformatoren Union Ag, 7000 Stuttgart Anlage zum Herstellen von Gießlingen aus Kunstharz im Druckgießverfahren
US4008031A (en) * 1975-08-22 1977-02-15 Weber Hermann P Apparatus for injection molding lenses

Patent Citations (5)

* 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
GB995694A (en) * 1962-12-05 1965-06-23 Computing Devices Canada Method and apparatus for making a curved surface
GB1442041A (en) * 1973-03-15 1976-07-07 Dentaire Ivoclar Ets Method of and apparatus for making plastic precision mouldings for medical and dental purposes
FR2270082A1 (fr) * 1974-05-06 1975-12-05 Bausch & Lomb

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 (fr) 1981-08-31
AT391296B (de) 1990-09-10
DK195179A (da) 1979-11-13
BR7902929A (pt) 1979-12-04
SE7904019L (sv) 1979-11-13
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
CA1135913A (fr) 1982-11-23
HK73587A (en) 1987-10-16
DE2954548C2 (fr) 1992-07-23
IT1094754B (it) 1985-08-02
IL57252A0 (en) 1979-09-30
DK162590C (da) 1992-04-06
FR2425314B1 (fr) 1984-01-13

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse
ST Notification of lapse