IT991217B - Processo con pluralita di stampi per la produzione di membrane non uniformi - Google Patents

Processo con pluralita di stampi per la produzione di membrane non uniformi

Info

Publication number
IT991217B
IT991217B IT2664973A IT2664973A IT991217B IT 991217 B IT991217 B IT 991217B IT 2664973 A IT2664973 A IT 2664973A IT 2664973 A IT2664973 A IT 2664973A IT 991217 B IT991217 B IT 991217B
Authority
IT
Italy
Prior art keywords
molds
production
uniform membranes
membranes
uniform
Prior art date
Application number
IT2664973A
Other languages
English (en)
Italian (it)
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of IT991217B publication Critical patent/IT991217B/it

Links

Classifications

    • 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
    • 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
    • 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
    • B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Polymerisation Methods In General (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Physical Vapour Deposition (AREA)
IT2664973A 1972-07-17 1973-07-16 Processo con pluralita di stampi per la produzione di membrane non uniformi IT991217B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27241972A 1972-07-17 1972-07-17

Publications (1)

Publication Number Publication Date
IT991217B true IT991217B (it) 1975-07-30

Family

ID=23039722

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2664973A IT991217B (it) 1972-07-17 1973-07-16 Processo con pluralita di stampi per la produzione di membrane non uniformi

Country Status (6)

Country Link
JP (1) JPS5237479B2 (ja)
BE (1) BE802393A (ja)
FR (1) FR2192903B1 (ja)
GB (1) GB1417749A (ja)
IT (1) IT991217B (ja)
NL (1) NL7309873A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1100615A (en) * 1974-06-29 1981-05-05 Kazuo Totani Liquid crystal electro-optical device
ATE360224T1 (de) * 2004-12-16 2007-05-15 Ecole D Ingenieurs Arc Verfahren zur herstellung einer vorrichtung mit einer kunststoffmembran und so erhaltene vorrichtung

Also Published As

Publication number Publication date
DE2335436A1 (de) 1974-01-31
FR2192903A1 (ja) 1974-02-15
JPS4944044A (ja) 1974-04-25
JPS5237479B2 (ja) 1977-09-22
DE2335436B2 (de) 1976-05-06
FR2192903B1 (ja) 1976-06-18
NL7309873A (ja) 1974-01-21
GB1417749A (en) 1975-12-17
BE802393A (fr) 1974-01-16

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