JPS55162442A - Manufacture of optical transmission glass - Google Patents

Manufacture of optical transmission glass

Info

Publication number
JPS55162442A
JPS55162442A JP7062379A JP7062379A JPS55162442A JP S55162442 A JPS55162442 A JP S55162442A JP 7062379 A JP7062379 A JP 7062379A JP 7062379 A JP7062379 A JP 7062379A JP S55162442 A JPS55162442 A JP S55162442A
Authority
JP
Japan
Prior art keywords
steam
jet
glass
soot
concn
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
JP7062379A
Other languages
Japanese (ja)
Other versions
JPS6221735B2 (en
Inventor
Toshio Katsuyama
Makoto Sato
Kenzo Susa
Koji Ishida
Yasuo Suganuma
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP7062379A priority Critical patent/JPS55162442A/en
Publication of JPS55162442A publication Critical patent/JPS55162442A/en
Publication of JPS6221735B2 publication Critical patent/JPS6221735B2/ja
Granted 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
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/46—Comprising performance enhancing means, e.g. electrostatic charge or built-in heater

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General 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 manufacture the title glass with a simple apparatus by heating a cylindrical jet consisting of a plurality of source gases, steam and an oxidizing agent while varying the concn. of the steam in the radius direction to deposit glass soot on a rotating starting member. CONSTITUTION:Composite jet 3 consisting of a source gas for a glass principal component, a source gas for a dopant, steam and an oxidizing agent other than steam is spouted upward from composite nozzle 1. Since the steam is spouted from concentric central nozzle 2, steam portion 4 in jet 3 whose cross-section is practically circular is diffused from the center to the periphery, resulting in a concn. gradient in the radius direction. Jet 3 is heated with external heat source 5 to form soot, which is then deposited on target surface 6 to form soot rod 7. The amount of dopant soot formed becomes the maximum at the central portion where the steam concn. is high. By sintering rod 7 a transparent glass rod having an arbitrary refractive index distribution in the radius direction is obtd.
JP7062379A 1979-06-07 1979-06-07 Manufacture of optical transmission glass Granted JPS55162442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7062379A JPS55162442A (en) 1979-06-07 1979-06-07 Manufacture of optical transmission glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7062379A JPS55162442A (en) 1979-06-07 1979-06-07 Manufacture of optical transmission glass

Publications (2)

Publication Number Publication Date
JPS55162442A true JPS55162442A (en) 1980-12-17
JPS6221735B2 JPS6221735B2 (en) 1987-05-14

Family

ID=13436922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7062379A Granted JPS55162442A (en) 1979-06-07 1979-06-07 Manufacture of optical transmission glass

Country Status (1)

Country Link
JP (1) JPS55162442A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121922A (en) * 1979-03-07 1980-09-19 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber mother material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55121922A (en) * 1979-03-07 1980-09-19 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber mother material

Also Published As

Publication number Publication date
JPS6221735B2 (en) 1987-05-14

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