JPS5636610A - Drawing method of optical fiber - Google Patents

Drawing method of optical fiber

Info

Publication number
JPS5636610A
JPS5636610A JP11266579A JP11266579A JPS5636610A JP S5636610 A JPS5636610 A JP S5636610A JP 11266579 A JP11266579 A JP 11266579A JP 11266579 A JP11266579 A JP 11266579A JP S5636610 A JPS5636610 A JP S5636610A
Authority
JP
Japan
Prior art keywords
precoating
take
machine
fibers
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.)
Pending
Application number
JP11266579A
Other languages
Japanese (ja)
Inventor
Masaharu Niizawa
Ryoji Nakazawa
Yukio Shimohori
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP11266579A priority Critical patent/JPS5636610A/en
Publication of JPS5636610A publication Critical patent/JPS5636610A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/028—Drawing fibre bundles, e.g. for making fibre bundles of multifibres, image fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/02—External structure or shape details
    • C03B2203/06—Axial perturbations, e.g. twist, by torsion, undulating, crimped
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/06—Rotating the fibre fibre about its longitudinal axis

Abstract

PURPOSE: To efficiently obtain an optical fiber bundle of high density and high mechanical strength by simultaneously drawing multiple preforms, twisting them together and performing precoating.
CONSTITUTION: A plurality of preforms 2 are simultaneously fed by a preform feeder 1 into a drawing furnace 3, where they are melted by heating and are drawn to optical fibers 4. The fibers 4 are bundled by a precoating die 5 and are thereby coated and precoated of silicone resin or the like. After the precoating is baked with a precoating baking furnace 6, the fibers are taken up by a take-up machine 7. Since the take-up machine 7 is mounted to a take-up machine rotating device 8, the take-up machine rotating device 8 is rotated in the arrow A direction and the take-up machine 7 is rotated around the vertical shaft orthogonal to the take-up revolving shaft, whereby the twisting and precoating may be accomplished simultaneously at the time when the fibers 4 pass the precoating die 5.
COPYRIGHT: (C)1981,JPO&Japio
JP11266579A 1979-09-03 1979-09-03 Drawing method of optical fiber Pending JPS5636610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11266579A JPS5636610A (en) 1979-09-03 1979-09-03 Drawing method of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11266579A JPS5636610A (en) 1979-09-03 1979-09-03 Drawing method of optical fiber

Publications (1)

Publication Number Publication Date
JPS5636610A true JPS5636610A (en) 1981-04-09

Family

ID=14592410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11266579A Pending JPS5636610A (en) 1979-09-03 1979-09-03 Drawing method of optical fiber

Country Status (1)

Country Link
JP (1) JPS5636610A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765694A1 (en) * 1997-07-01 1999-01-08 Eric Desvalleres Optical fibre cable or light guide
JP2011232711A (en) * 2010-04-30 2011-11-17 Sumitomo Electric Ind Ltd Multi-core optical fiber and method for separating multi-core optical fiber into single-core optical fibers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765694A1 (en) * 1997-07-01 1999-01-08 Eric Desvalleres Optical fibre cable or light guide
JP2011232711A (en) * 2010-04-30 2011-11-17 Sumitomo Electric Ind Ltd Multi-core optical fiber and method for separating multi-core optical fiber into single-core optical fibers
US8811788B2 (en) 2010-04-30 2014-08-19 Sumitomo Electric Industries, Ltd. Multi-core optical fiber and method of producing the same

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