GB1395203A - Manufacture of optical lenses of organic material - Google Patents

Manufacture of optical lenses of organic material

Info

Publication number
GB1395203A
GB1395203A GB5225872A GB5225872A GB1395203A GB 1395203 A GB1395203 A GB 1395203A GB 5225872 A GB5225872 A GB 5225872A GB 5225872 A GB5225872 A GB 5225872A GB 1395203 A GB1395203 A GB 1395203A
Authority
GB
United Kingdom
Prior art keywords
moulded
mould
lenses
nov
gasket
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
GB5225872A
Other languages
English (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.)
Vergo SA
Original Assignee
Vergo SA
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 Vergo SA filed Critical Vergo SA
Publication of GB1395203A publication Critical patent/GB1395203A/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
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • 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
    • 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
    • B29D11/0048—Moulds for lenses
    • B29D11/00528—Consisting of two mould halves joined by an annular gasket
    • 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
    • B29D11/0048—Moulds for lenses
    • B29D11/00538—Feeding arrangements
    • 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
    • B29C33/0022—Multi-cavity moulds
    • 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
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
GB5225872A 1971-11-16 1972-11-13 Manufacture of optical lenses of organic material Expired GB1395203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7141633A FR2160328B1 (enrdf_load_stackoverflow) 1971-11-16 1971-11-16

Publications (1)

Publication Number Publication Date
GB1395203A true GB1395203A (en) 1975-05-21

Family

ID=9086105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5225872A Expired GB1395203A (en) 1971-11-16 1972-11-13 Manufacture of optical lenses of organic material

Country Status (5)

Country Link
JP (1) JPS4862441A (enrdf_load_stackoverflow)
DE (1) DE2255923A1 (enrdf_load_stackoverflow)
FR (1) FR2160328B1 (enrdf_load_stackoverflow)
GB (1) GB1395203A (enrdf_load_stackoverflow)
IT (1) IT969255B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4615847A (en) * 1984-03-09 1986-10-07 U.S. Philips Corporation Method and apparatus for producing a lens having an accurately centered aspherical surface
US7615180B2 (en) 2005-07-08 2009-11-10 Gentex Optics, Inc. Method for injection molding with direct insert thermal control
EP2319672A1 (en) * 2009-11-05 2011-05-11 FUJIFILM Corporation Lens array press mold and lens array molded by the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2043942B (en) * 1978-05-22 1982-12-01 Optical device for wide-scope
CA1143518A (en) * 1979-01-15 1983-03-29 George T. Croft Method and apparatus for making plastic lenses
DE102004043385B3 (de) * 2004-09-08 2006-05-18 Seereal Technologies Gmbh Verfahren und Einrichtung zur Replikation fein strukturierter Flachoptiken und optischen Masken mit derartigen strukturierten Optiken
DE102007057987A1 (de) * 2007-12-03 2009-06-10 Christoph Egger Verfahren zur Herstellung von Gussteilen aus Polyurethan

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516373A (en) * 1946-11-09 1950-07-25 Domar Products Inc Mold for making integral plastic frames and lenses
FR1090073A (fr) * 1953-09-22 1955-03-28 L O S Lentilles Ophtalmiques S Procédé de fabrication de lentilles en résines synthétiques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4615847A (en) * 1984-03-09 1986-10-07 U.S. Philips Corporation Method and apparatus for producing a lens having an accurately centered aspherical surface
US7615180B2 (en) 2005-07-08 2009-11-10 Gentex Optics, Inc. Method for injection molding with direct insert thermal control
EP2319672A1 (en) * 2009-11-05 2011-05-11 FUJIFILM Corporation Lens array press mold and lens array molded by the same

Also Published As

Publication number Publication date
DE2255923A1 (de) 1973-05-24
FR2160328A1 (enrdf_load_stackoverflow) 1973-06-29
IT969255B (it) 1974-03-30
JPS4862441A (enrdf_load_stackoverflow) 1973-08-31
FR2160328B1 (enrdf_load_stackoverflow) 1976-02-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee