FR2170220A1 - Injection mould - using glass ceramic liners to shape high polymers for optical lenses - Google Patents

Injection mould - using glass ceramic liners to shape high polymers for optical lenses

Info

Publication number
FR2170220A1
FR2170220A1 FR7303778A FR7303778A FR2170220A1 FR 2170220 A1 FR2170220 A1 FR 2170220A1 FR 7303778 A FR7303778 A FR 7303778A FR 7303778 A FR7303778 A FR 7303778A FR 2170220 A1 FR2170220 A1 FR 2170220A1
Authority
FR
France
Prior art keywords
glass ceramic
liners
optical lenses
injection mould
high polymers
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
FR7303778A
Other languages
English (en)
French (fr)
Other versions
FR2170220B1 (enrdf_load_stackoverflow
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.)
Deutsche Spiegelglas AG
Original Assignee
Deutsche Spiegelglas 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
Priority claimed from DE19722204830 external-priority patent/DE2204830C3/de
Application filed by Deutsche Spiegelglas AG filed Critical Deutsche Spiegelglas AG
Publication of FR2170220A1 publication Critical patent/FR2170220A1/fr
Application granted granted Critical
Publication of FR2170220B1 publication Critical patent/FR2170220B1/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
    • B29D11/0048—Moulds for lenses
    • B29D11/00548—Moulds for lenses with surfaces formed by films
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • 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
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/02—Ceramics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Glass Compositions (AREA)
FR7303778A 1972-02-02 1973-02-02 Injection mould - using glass ceramic liners to shape high polymers for optical lenses Granted FR2170220A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722204830 DE2204830C3 (de) 1972-02-02 Spritzgießform zum Herstellen von Formkörpern aus Kunststoff

Publications (2)

Publication Number Publication Date
FR2170220A1 true FR2170220A1 (en) 1973-09-14
FR2170220B1 FR2170220B1 (enrdf_load_stackoverflow) 1977-07-22

Family

ID=5834781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7303778A Granted FR2170220A1 (en) 1972-02-02 1973-02-02 Injection mould - using glass ceramic liners to shape high polymers for optical lenses

Country Status (2)

Country Link
FR (1) FR2170220A1 (enrdf_load_stackoverflow)
IT (1) IT990526B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061619A3 (en) * 1981-03-31 1983-09-07 Firma Carl Zeiss Mould for the manufacture of pieces of thermoplastic material
FR2593742A1 (fr) * 1986-02-05 1987-08-07 Showa Denko Kk Moule pour la realisation de disques optiques
FR2597397A1 (fr) * 1986-04-19 1987-10-23 Kloeckner Ferromatik Desma Moule pour le moulage par injection de plaques de support d'informations
WO1988007924A1 (en) * 1987-04-10 1988-10-20 Opt Engineering Ag Mould insert with scratch-resistant polished mould surface for manufacture of plastic parts
EP0444367A1 (en) * 1988-08-25 1991-09-04 Daicel Chemical Industries, Ltd. A stamper for injection molding
EP0571162A1 (en) * 1992-05-16 1993-11-24 British Aerospace Public Limited Company Manufacture of articles from composite material
WO1997034752A1 (de) * 1996-03-18 1997-09-25 Novartis Ag Verfahren zum gegenseitigen positionieren von paaren gegenüberliegender formbestimmender formwerkzeug-teile und formwerkzeug zur herstellung von präzisionsteilen, insbesondere von kontaktlinsen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364745A (en) * 1940-02-16 1944-12-12 Gen Motors Corp Mold equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364745A (en) * 1940-02-16 1944-12-12 Gen Motors Corp Mold equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061619A3 (en) * 1981-03-31 1983-09-07 Firma Carl Zeiss Mould for the manufacture of pieces of thermoplastic material
FR2593742A1 (fr) * 1986-02-05 1987-08-07 Showa Denko Kk Moule pour la realisation de disques optiques
FR2597397A1 (fr) * 1986-04-19 1987-10-23 Kloeckner Ferromatik Desma Moule pour le moulage par injection de plaques de support d'informations
WO1988007924A1 (en) * 1987-04-10 1988-10-20 Opt Engineering Ag Mould insert with scratch-resistant polished mould surface for manufacture of plastic parts
EP0444367A1 (en) * 1988-08-25 1991-09-04 Daicel Chemical Industries, Ltd. A stamper for injection molding
EP0571162A1 (en) * 1992-05-16 1993-11-24 British Aerospace Public Limited Company Manufacture of articles from composite material
WO1997034752A1 (de) * 1996-03-18 1997-09-25 Novartis Ag Verfahren zum gegenseitigen positionieren von paaren gegenüberliegender formbestimmender formwerkzeug-teile und formwerkzeug zur herstellung von präzisionsteilen, insbesondere von kontaktlinsen

Also Published As

Publication number Publication date
IT990526B (it) 1975-07-10
DE2204830B2 (de) 1975-09-18
FR2170220B1 (enrdf_load_stackoverflow) 1977-07-22
DE2204830A1 (de) 1973-08-16

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Legal Events

Date Code Title Description
ST Notification of lapse