JPS54116430A - Production of optical transmission material - Google Patents

Production of optical transmission material

Info

Publication number
JPS54116430A
JPS54116430A JP2381378A JP2381378A JPS54116430A JP S54116430 A JPS54116430 A JP S54116430A JP 2381378 A JP2381378 A JP 2381378A JP 2381378 A JP2381378 A JP 2381378A JP S54116430 A JPS54116430 A JP S54116430A
Authority
JP
Japan
Prior art keywords
glass
crucible
molten glass
molten
float
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
JP2381378A
Other languages
Japanese (ja)
Inventor
Junjiro Goto
Yoshio Kawabata
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 JP2381378A priority Critical patent/JPS54116430A/en
Publication of JPS54116430A publication Critical patent/JPS54116430A/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
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
    • C03B37/01274—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by extrusion or drawing

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:Flat quartz plates or the likes are made to float on the liquid surface of a molten composition for making glass in a quartz crucible, thereby preventing the contamination of glass rods by foreign substance that are caused by flowing down from th bottom of the crucible. CONSTITUTION:After a disc 11 is made to float on the surface of molten glass that is formed by heating a compound for glass making in a crucible 2 with an electric furnace 3, the molten glass 9 is made to flow down from nozzles 4 and solidified by cooling to form a glass rod or optical fiber 6. The surface of the molten glass goes down horizontally without being engulfed into the center of the crucble and foreign materials 10 also goes down keeping close contact with the disc 11 and are not included into the molten glass.
JP2381378A 1978-03-01 1978-03-01 Production of optical transmission material Pending JPS54116430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2381378A JPS54116430A (en) 1978-03-01 1978-03-01 Production of optical transmission material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2381378A JPS54116430A (en) 1978-03-01 1978-03-01 Production of optical transmission material

Publications (1)

Publication Number Publication Date
JPS54116430A true JPS54116430A (en) 1979-09-10

Family

ID=12120771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2381378A Pending JPS54116430A (en) 1978-03-01 1978-03-01 Production of optical transmission material

Country Status (1)

Country Link
JP (1) JPS54116430A (en)

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