BR9911052A - Method for the manufacture of a plastic optical fiber, and a plastic optical fiber - Google Patents

Method for the manufacture of a plastic optical fiber, and a plastic optical fiber

Info

Publication number
BR9911052A
BR9911052A BR9911052-0A BR9911052A BR9911052A BR 9911052 A BR9911052 A BR 9911052A BR 9911052 A BR9911052 A BR 9911052A BR 9911052 A BR9911052 A BR 9911052A
Authority
BR
Brazil
Prior art keywords
optical fiber
plastic optical
manufacture
plastic
layers
Prior art date
Application number
BR9911052-0A
Other languages
Portuguese (pt)
Inventor
Kari Kirjavainen
Markku Suvanto
Jouni Heinonen
Original Assignee
Nextrom Holding Sa
Nk Cables Oy
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 Nextrom Holding Sa, Nk Cables Oy filed Critical Nextrom Holding Sa
Publication of BR9911052A publication Critical patent/BR9911052A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • G02B6/02152—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating involving moving the fibre or a manufacturing element, stretching of the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
    • G02B6/02038—Core or cladding made from organic material, e.g. polymeric material with core or cladding having graded refractive index
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29D11/00663—Production of light guides
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

Patente de Invenção: <B>"MéTODO PARA A FABRICAçãO DE UMA FIBRA óTICA PLáSTICA, E UMA FIBRA óTICA PLáSTICA''<D>. A invenção refere-se a um método para a fabricação de uma fibra ótica plástica, em cujo método os materiais plásticos com propriedades óticas adequadas são alimentados para dentro de um aparelho de extrusão de modo a formar uma estrutura de múltiplas camadas onde o índice refrativo diminui gradualmente em uma maneira controlada do interior para fora. A invenção também refere-se a uma fibra ótica plástica. De modo a propiciar a fabricação flexível e contínua de uma fibra de banda larga, o aparelho de extrusão consiste em pelo menos uma unidade extrusora cónica de múltiplas camadas (1) que produz um produto onde as camadas são formadas sem linhas de solda, são simétricas e aderem bem umas nas outras. O número das camadas também pode ser alto.Invention Patent: <B> "METHOD FOR THE MANUFACTURE OF A PLASTIC OPTICAL FIBER, AND A PLASTIC OPTICAL FIBER '' <D>. The invention relates to a method for the manufacture of a plastic optical fiber, in whose method the plastic materials with suitable optical properties are fed into an extrusion apparatus to form a multilayered structure where the refractive index gradually decreases in a controlled manner from the inside out. The invention also relates to a plastic optical fiber In order to provide flexible and continuous manufacturing of a broadband fiber, the extrusion apparatus consists of at least one multi-layer conical extruder unit (1) that produces a product where the layers are formed without welding lines, symmetrical and adhere well to each other. The number of layers can also be high.

BR9911052-0A 1998-05-19 1999-05-17 Method for the manufacture of a plastic optical fiber, and a plastic optical fiber BR9911052A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981114A FI981114A (en) 1998-05-19 1998-05-19 A process for the manufacture of an optical plastic fiber and an optical plastic fiber
PCT/FI1999/000425 WO1999060426A2 (en) 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre

Publications (1)

Publication Number Publication Date
BR9911052A true BR9911052A (en) 2001-02-06

Family

ID=8551760

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911052-0A BR9911052A (en) 1998-05-19 1999-05-17 Method for the manufacture of a plastic optical fiber, and a plastic optical fiber

Country Status (7)

Country Link
EP (1) EP1095296A2 (en)
JP (1) JP2002516402A (en)
KR (1) KR20010043715A (en)
AU (1) AU4267399A (en)
BR (1) BR9911052A (en)
FI (1) FI981114A (en)
WO (1) WO1999060426A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7764854B2 (en) * 2005-12-27 2010-07-27 Ofs Fitel Llc Optical fiber with specialized index profile to compensate for bend-induced distortions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452603A (en) * 1990-06-20 1992-02-20 Nok Corp Manufacture of distributed index type rubber optical fiber
US5235660A (en) * 1992-07-10 1993-08-10 Peachtree Fiberoptics, Inc. Graded polymer optical fibers and process for the manufacture thereof
US5555525A (en) * 1994-09-07 1996-09-10 Industrial Technology Research Institute Method of making graded refractive index polymeric optical fibers and optical fibers made by the method
JPH09133818A (en) * 1995-11-09 1997-05-20 Sumitomo Wiring Syst Ltd Production of graded index plastic optical fiber
US5729645A (en) * 1996-08-13 1998-03-17 The Trustees Of The University Of Pennsylvania Graded index optical fibers

Also Published As

Publication number Publication date
WO1999060426A3 (en) 2000-01-13
FI981114A0 (en) 1998-05-19
WO1999060426A2 (en) 1999-11-25
AU4267399A (en) 1999-12-06
JP2002516402A (en) 2002-06-04
KR20010043715A (en) 2001-05-25
EP1095296A2 (en) 2001-05-02
FI981114A (en) 1999-11-20

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: G02B 6/02 (2006.01), B29C 47/00 (2006.0