JPS5684332A - Optical fiber manufacturing crucible - Google Patents

Optical fiber manufacturing crucible

Info

Publication number
JPS5684332A
JPS5684332A JP16249079A JP16249079A JPS5684332A JP S5684332 A JPS5684332 A JP S5684332A JP 16249079 A JP16249079 A JP 16249079A JP 16249079 A JP16249079 A JP 16249079A JP S5684332 A JPS5684332 A JP S5684332A
Authority
JP
Japan
Prior art keywords
crucible
core
center
optical fiber
glass melting
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
JP16249079A
Other languages
Japanese (ja)
Inventor
Yoshio Kawabata
Yoshito Nishijima
Takashi Tatsuta
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16249079A priority Critical patent/JPS5684332A/en
Publication of JPS5684332A publication Critical patent/JPS5684332A/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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To allow the center of a core to agree with the center of a clad by putting an inner crucible connected to a core glass melting crucible in an outer crucible connected to a clad glass melting crucible so that the relative positions can be adjusted freely. CONSTITUTION:This optical fiber manufacturing crucible is composed of inner crucible 13 connected to core glass melting crucible 12 having U-shaped tubular conduit 11 at the bottom and of outer crucible 15 connected to clad glass melting crucible 14. Inner crucible 13 is in outer crucible 15 with gap C in-between, and owing to gap C crucibles 13, 15 can be moved slightly and relatively in the longitudinal X, lateral Y and height Z directions. Thus, the center of a core agrees with the center of a clad layer, and an optical fiber free from eccentricity and having a desired core diameter to outside diameter ratio is obtd.
JP16249079A 1979-12-13 1979-12-13 Optical fiber manufacturing crucible Pending JPS5684332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16249079A JPS5684332A (en) 1979-12-13 1979-12-13 Optical fiber manufacturing crucible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16249079A JPS5684332A (en) 1979-12-13 1979-12-13 Optical fiber manufacturing crucible

Publications (1)

Publication Number Publication Date
JPS5684332A true JPS5684332A (en) 1981-07-09

Family

ID=15755599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16249079A Pending JPS5684332A (en) 1979-12-13 1979-12-13 Optical fiber manufacturing crucible

Country Status (1)

Country Link
JP (1) JPS5684332A (en)

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