JPS5463764A - Shaping device of preform for optical fibers - Google Patents

Shaping device of preform for optical fibers

Info

Publication number
JPS5463764A
JPS5463764A JP12923477A JP12923477A JPS5463764A JP S5463764 A JPS5463764 A JP S5463764A JP 12923477 A JP12923477 A JP 12923477A JP 12923477 A JP12923477 A JP 12923477A JP S5463764 A JPS5463764 A JP S5463764A
Authority
JP
Japan
Prior art keywords
outside diameter
preform
bearings
optical fibers
spacing
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
JP12923477A
Other languages
Japanese (ja)
Inventor
Takashi Okada
Masao Kawachi
Akio Kawana
Toshito Hosaka
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 JP12923477A priority Critical patent/JPS5463764A/en
Publication of JPS5463764A publication Critical patent/JPS5463764A/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
    • C03B37/014—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]
    • C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • C03B37/01884—Means for supporting, rotating and translating tubes or rods being formed, e.g. lathes

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 automatically perform outside diameter shaping and outside diameter changing of perform with high accuracy by providing the outside diameter non- contact measuring part and adjusting part for preform to a glass lathe. CONSTITUTION:The preform 1 which is supported to bearings 11, 12 of a glass lathe is revolved while being evenly heated with an oxyhydrogen burner 13 which is reciprocating at a constant feed speed and return speed. The variations in its outside diameter are measured by an outside diameter measuring part 20 in cooperation with the movement of the burner 13 and are fed back to an interbearing spacing adjusting mechanism 14 by way of a controller 21 to finely adjust the spacing between the bearings 11, 12 to so control these as to elongate or compress the preform 1 thereby automatically controlling the outside diameter of the preform 1.
JP12923477A 1977-10-29 1977-10-29 Shaping device of preform for optical fibers Pending JPS5463764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12923477A JPS5463764A (en) 1977-10-29 1977-10-29 Shaping device of preform for optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12923477A JPS5463764A (en) 1977-10-29 1977-10-29 Shaping device of preform for optical fibers

Publications (1)

Publication Number Publication Date
JPS5463764A true JPS5463764A (en) 1979-05-22

Family

ID=15004481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12923477A Pending JPS5463764A (en) 1977-10-29 1977-10-29 Shaping device of preform for optical fibers

Country Status (1)

Country Link
JP (1) JPS5463764A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143915A (en) * 1974-04-26 1975-11-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143915A (en) * 1974-04-26 1975-11-19

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