BE739794A - - Google Patents

Info

Publication number
BE739794A
BE739794A BE739794DA BE739794A BE 739794 A BE739794 A BE 739794A BE 739794D A BE739794D A BE 739794DA BE 739794 A BE739794 A BE 739794A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE739794A publication Critical patent/BE739794A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/002—Thermal treatment
    • 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
    • C03B37/10—Non-chemical treatment
    • C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
    • C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/045—Silica-containing oxide glass compositions
    • C03C13/046—Multicomponent glass compositions
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
BE739794D 1968-10-03 1969-10-03 BE739794A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7209568 1968-10-03

Publications (1)

Publication Number Publication Date
BE739794A true BE739794A (xx) 1970-03-16

Family

ID=13479490

Family Applications (1)

Application Number Title Priority Date Filing Date
BE739794D BE739794A (xx) 1968-10-03 1969-10-03

Country Status (6)

Country Link
US (1) US3817731A (xx)
BE (1) BE739794A (xx)
DE (1) DE1949275C3 (xx)
FR (1) FR2019824B1 (xx)
GB (1) GB1266524A (xx)
NL (1) NL6914795A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894857A (en) * 1968-07-06 1975-07-15 Nippon Selfoc Co Ltd Process for exchanging alkali ions for thallium ions in a glass fiber
US3859103A (en) * 1973-03-08 1975-01-07 Nippon Selfoc Co Ltd Optical glass body having a refractive index gradient
US3963468A (en) * 1974-02-15 1976-06-15 Bell Telephone Laboratories, Incorporated Light guide fabrication
US3904268A (en) * 1974-11-15 1975-09-09 Corning Glass Works Optical waveguide having optimal index gradient
US4069031A (en) * 1976-05-10 1978-01-17 Owens-Illinois, Inc. Process for forming two different indices of refraction in a glass ceramic
DE2843276C2 (de) * 1978-10-04 1980-05-29 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Herstellung eines Lichtwellenleiters

Also Published As

Publication number Publication date
DE1949275C3 (de) 1978-05-18
FR2019824A1 (xx) 1970-07-10
NL6914795A (xx) 1970-04-07
US3817731A (en) 1974-06-18
GB1266524A (xx) 1972-03-08
DE1949275A1 (de) 1970-09-24
DE1949275B2 (de) 1977-09-01
FR2019824B1 (xx) 1973-10-19

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: NIPPON SELFOC K.K.

Effective date: 19841003