JPS5781205A - Low-loss plastic optical fiber and its production - Google Patents

Low-loss plastic optical fiber and its production

Info

Publication number
JPS5781205A
JPS5781205A JP55157599A JP15759980A JPS5781205A JP S5781205 A JPS5781205 A JP S5781205A JP 55157599 A JP55157599 A JP 55157599A JP 15759980 A JP15759980 A JP 15759980A JP S5781205 A JPS5781205 A JP S5781205A
Authority
JP
Japan
Prior art keywords
core
synthetic high
polymer
high polymer
optical fiber
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
JP55157599A
Other languages
Japanese (ja)
Other versions
JPH0323885B2 (en
Inventor
Toshikuni Kaino
Michiya Fujiki
Shigeo Nara
Shigeru Oikawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55157599A priority Critical patent/JPS5781205A/en
Priority to US06/316,834 priority patent/US4381269A/en
Priority to NLAANVRAGE8105088,A priority patent/NL186769C/en
Priority to DE19813144658 priority patent/DE3144658A1/en
Priority to GB8133847A priority patent/GB2089352B/en
Priority to FR8121059A priority patent/FR2493997A1/en
Publication of JPS5781205A publication Critical patent/JPS5781205A/en
Priority to NL9000661A priority patent/NL9000661A/en
Publication of JPH0323885B2 publication Critical patent/JPH0323885B2/ja
Granted legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • 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
    • G02B1/045—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To improve the optical transmission characteristics in a visible region by using polymethyl methacrylate contg. specific amts. of dust and transition metallic ion as a core component, and a synthetic high polymer of a refractive index lower than that of the core component as a sleeve component. CONSTITUTION:In the state of absence of oxygen, a polymn. initiator and a chain transfer agent are added to methyl methacrylate, and is subjected to bulk polymn. in a sealed state at <=1 piece/mm.<2> by irradiation of He-Ne laser beam of 632.8nm dust, whereby the polymer contg. <=50ppm Fe, Mn, <=10ppm Cu, Ni, <=5ppm Cr, and <=2ppm Co as transition metallic ions is obtained. This polymer is melt spun at the temp. at which no air bubbles are produced, whereby a core is formed. A sleeve is put around this core by means of a synthetic high polymer consisting of an amorphous synthetic high polymer of a refractive index lower than that of the core, whereby the low-loss plastic optical fiber is produced.
JP55157599A 1980-11-11 1980-11-11 Low-loss plastic optical fiber and its production Granted JPS5781205A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP55157599A JPS5781205A (en) 1980-11-11 1980-11-11 Low-loss plastic optical fiber and its production
US06/316,834 US4381269A (en) 1980-11-11 1981-10-30 Fabrication of a low-loss plastic optical fiber
NLAANVRAGE8105088,A NL186769C (en) 1980-11-11 1981-11-10 METHOD FOR MANUFACTURING OPTICAL PLASTIC FIBERS
DE19813144658 DE3144658A1 (en) 1980-11-11 1981-11-10 METHOD FOR PRODUCING A LOW-LOSS OPTICAL FIBER FROM PLASTIC
GB8133847A GB2089352B (en) 1980-11-11 1981-11-10 Fabrication method of a low-loss plastic optical fiber
FR8121059A FR2493997A1 (en) 1980-11-11 1981-11-10 PROCESS FOR PRODUCING OPTICAL FIBER OF PLASTIC MATERIAL WITH LOW LOSSES
NL9000661A NL9000661A (en) 1980-11-11 1990-03-21 METHOD FOR MANUFACTURING OPTICAL FIBERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55157599A JPS5781205A (en) 1980-11-11 1980-11-11 Low-loss plastic optical fiber and its production

Publications (2)

Publication Number Publication Date
JPS5781205A true JPS5781205A (en) 1982-05-21
JPH0323885B2 JPH0323885B2 (en) 1991-03-29

Family

ID=15653229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55157599A Granted JPS5781205A (en) 1980-11-11 1980-11-11 Low-loss plastic optical fiber and its production

Country Status (1)

Country Link
JP (1) JPS5781205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5955401A (en) * 1982-09-24 1984-03-30 Kanegafuchi Chem Ind Co Ltd Plastic optical fiber

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5465555A (en) * 1977-10-14 1979-05-26 Du Pont Lowwdamping optical fibers entirely made of plastic
JPS55103504A (en) * 1979-02-01 1980-08-07 Nippon Telegr & Teleph Corp <Ntt> Production of plastic optical fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5465555A (en) * 1977-10-14 1979-05-26 Du Pont Lowwdamping optical fibers entirely made of plastic
JPS55103504A (en) * 1979-02-01 1980-08-07 Nippon Telegr & Teleph Corp <Ntt> Production of plastic optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5955401A (en) * 1982-09-24 1984-03-30 Kanegafuchi Chem Ind Co Ltd Plastic optical fiber

Also Published As

Publication number Publication date
JPH0323885B2 (en) 1991-03-29

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