GB2021474B - Making lenses of polymerizable synthetic resins - Google Patents

Making lenses of polymerizable synthetic resins

Info

Publication number
GB2021474B
GB2021474B GB7915824A GB7915824A GB2021474B GB 2021474 B GB2021474 B GB 2021474B GB 7915824 A GB7915824 A GB 7915824A GB 7915824 A GB7915824 A GB 7915824A GB 2021474 B GB2021474 B GB 2021474B
Authority
GB
United Kingdom
Prior art keywords
synthetic resins
making lenses
polymerizable synthetic
polymerizable
lenses
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
GB7915824A
Other languages
English (en)
Other versions
GB2021474A (en
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 GB2021474A publication Critical patent/GB2021474A/en
Application granted granted Critical
Publication of GB2021474B publication Critical patent/GB2021474B/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
GB7915824A 1978-05-12 1979-05-08 Making lenses of polymerizable synthetic resins Expired GB2021474B (en)

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
GB2021474A GB2021474A (en) 1979-12-05
GB2021474B true GB2021474B (en) 1982-08-11

Family

ID=11206027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915824A Expired GB2021474B (en) 1978-05-12 1979-05-08 Making lenses of polymerizable synthetic resins

Country Status (22)

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

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
EP1117523B1 (en) * 1998-09-30 2002-12-11 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
HK73587A (en) 1987-10-16
CA1135913A (en) 1982-11-23
AT391296B (de) 1990-09-10
DE2918323A1 (de) 1979-12-06
NO791516L (no) 1979-11-13
AU4703279A (en) 1979-11-29
DK195179A (da) 1979-11-13
LU81249A1 (fr) 1979-09-10
IT7823319A0 (it) 1978-05-12
IT1094754B (it) 1985-08-02
GB2021474A (en) 1979-12-05
DK162590C (da) 1992-04-06
FR2425314B1 (sv) 1984-01-13
NO162009B (no) 1989-07-17
SE432219B (sv) 1984-03-26
SE7904019L (sv) 1979-11-13
CH641402A5 (it) 1984-02-29
IE791245L (en) 1979-11-12
AU526381B2 (en) 1983-01-06
IE48438B1 (en) 1985-01-23
DE2954548C2 (sv) 1992-07-23
BE876149A (fr) 1979-09-03
IL57252A0 (en) 1979-09-30
BR7902929A (pt) 1979-12-04
FR2425314A1 (fr) 1979-12-07
NL7903713A (nl) 1979-11-14
ATA334779A (de) 1990-03-15
JPS54149765A (en) 1979-11-24
ES480497A1 (es) 1979-12-16
GR67597B (sv) 1981-08-31
MX151517A (es) 1984-12-10
NO162009C (no) 1989-10-25
DK162590B (da) 1991-11-18

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950508