[go: up one dir, main page]

GB1532571A - Optical fibre manufacture - Google Patents

Optical fibre manufacture

Info

Publication number
GB1532571A
GB1532571A GB417676A GB417676A GB1532571A GB 1532571 A GB1532571 A GB 1532571A GB 417676 A GB417676 A GB 417676A GB 417676 A GB417676 A GB 417676A GB 1532571 A GB1532571 A GB 1532571A
Authority
GB
United Kingdom
Prior art keywords
melt
glass
optical fibre
melts
jacket
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.)
Expired
Application number
GB417676A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB417676A priority Critical patent/GB1532571A/en
Priority to DE19772703706 priority patent/DE2703706A1/en
Priority to AU21824/77A priority patent/AU505362B2/en
Priority to CH122677A priority patent/CH613528A5/en
Priority to FR7703037A priority patent/FR2340280A1/en
Priority to JP1032477A priority patent/JPS5296039A/en
Priority to US05/926,052 priority patent/US4217123A/en
Publication of GB1532571A publication Critical patent/GB1532571A/en
Expired 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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/085—Feeding devices therefor
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/50—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with alkali metals

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

An optical fibre is drawn down out of a double crucible (12; 16) filled with a core glass (20) melt or a jacket glass (21) melt. A constant ratio of the core diameter to the jacket diameter is maintained during the drawing operation of the fibre by refilling the above mentioned melts with constant amounts (22, 23) of glass per unit of time. A state of equilibrium is established, in which the levels of the melts settle at a specific height. This dispenses with a detector for the melt level. <IMAGE>
GB417676A 1976-02-03 1976-02-03 Optical fibre manufacture Expired GB1532571A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB417676A GB1532571A (en) 1976-02-03 1976-02-03 Optical fibre manufacture
DE19772703706 DE2703706A1 (en) 1976-02-03 1977-01-29 METHOD AND DEVICE FOR MANUFACTURING A MESSAGE TRANSMISSION LIGHT GUIDE
AU21824/77A AU505362B2 (en) 1976-02-03 1977-02-01 Method of producing cladded optical fibres
CH122677A CH613528A5 (en) 1976-02-03 1977-02-02 Method for producing optical fibres
FR7703037A FR2340280A1 (en) 1976-02-03 1977-02-03 IMPROVEMENT IN THE MANUFACTURING OF OPTICAL FIBERS BY THE DOUBLE CRUCIBLE METHOD
JP1032477A JPS5296039A (en) 1976-02-03 1977-02-03 Doubleewall crucible method for manufacturing optical fiber
US05/926,052 US4217123A (en) 1976-02-03 1978-07-19 Double crucible method of optical fiber manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB417676A GB1532571A (en) 1976-02-03 1976-02-03 Optical fibre manufacture

Publications (1)

Publication Number Publication Date
GB1532571A true GB1532571A (en) 1978-11-15

Family

ID=9772147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB417676A Expired GB1532571A (en) 1976-02-03 1976-02-03 Optical fibre manufacture

Country Status (6)

Country Link
JP (1) JPS5296039A (en)
AU (1) AU505362B2 (en)
CH (1) CH613528A5 (en)
DE (1) DE2703706A1 (en)
FR (1) FR2340280A1 (en)
GB (1) GB1532571A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212099C2 (en) * 1992-04-10 1994-07-21 Heraeus Quarzglas Method and device for producing a composite body made of glass

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209641A (en) * 1960-02-15 1965-10-05 American Optical Corp Infra-red transmitting fibers formed of arsenic and sulphur
US3274324A (en) * 1961-10-30 1966-09-20 Owens Corning Fiberglass Corp Apparatus for forming heat-softenable materials
US3288583A (en) * 1962-06-07 1966-11-29 Bausch & Lomb Apparatus for producing optical fiber
FR1496223A (en) * 1966-08-19 1967-09-29 Saint Gobain Process and device for the manufacture of so-called fibers
JPS50115836A (en) * 1974-02-23 1975-09-10
GB1507144A (en) * 1974-07-10 1978-04-12 Post Office Apparatus for drawing dielectric optical waveguides

Also Published As

Publication number Publication date
AU505362B2 (en) 1979-11-15
FR2340280A1 (en) 1977-09-02
FR2340280B1 (en) 1982-10-22
AU2182477A (en) 1978-08-10
JPS5296039A (en) 1977-08-12
DE2703706A1 (en) 1977-08-04
CH613528A5 (en) 1979-09-28

Similar Documents

Publication Publication Date Title
DE3174375D1 (en) Optical waveguide filament and a method of forming a preform therefor
GB1572526A (en) Optical fibres
ATE32792T1 (en) MICROSCOPE WITH A BINOCULAR TUBE.
ES451410A1 (en) Optical fiber transmission line
US5100449A (en) Method of forming glass articles
US3726656A (en) Method of producing elongated,clad glass member
FR2314492A1 (en) OBJECTIVE CONTROL DEVICE FOR IMPURITIES IN CYLINDRICAL, TRANSPARENT CONTAINERS FILLED WITH LIQUID
GB1532571A (en) Optical fibre manufacture
GB1223805A (en) Glass tube manufacture
GB1540937A (en) Device for coating an optical fibre with a layer of plastics material
JPS52120841A (en) Optical fiber producing apparatus
JPS5699306A (en) Single mode optical fiber which preserves plane of polarization
GB1438742A (en) Apparatus for and method of producing optical fibres
GB1490700A (en) Optical fibre preform manufacture
GB1328612A (en) Optical fibre manufacture
JPS5734503A (en) Optical monitoring device
ES461668A1 (en) Heat shield for float glass forming apparatus and method of using
DE3062038D1 (en) Device for regulating the level of luminous power emitted at the extremity of an optical fibre
JPS57125906A (en) Production of optical guide
SU105699A1 (en) The method for determining the specific gravity of molten salts and fluxes and the device for implementing the method
JPS57190901A (en) Water lens
JPS5643607A (en) Infrared ray transmitting body
JPS5614122A (en) Detector for quantity of liquid
JPS54147224A (en) Production of optical fiber
GB1475498A (en) Optical fibres and optical fibre preform

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee