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GB1261691A - Glass - Google Patents

Glass

Info

Publication number
GB1261691A
GB1261691A GB249570A GB249570A GB1261691A GB 1261691 A GB1261691 A GB 1261691A GB 249570 A GB249570 A GB 249570A GB 249570 A GB249570 A GB 249570A GB 1261691 A GB1261691 A GB 1261691A
Authority
GB
United Kingdom
Prior art keywords
glass
jan
combined
fibres
black
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
GB249570A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1261691A publication Critical patent/GB1261691A/en
Expired legal-status Critical Current

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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • 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
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator

Landscapes

  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Glass Compositions (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

1,261,691. Black glass fibre compositions; multi-glass fibres. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Jan., 1970 [22 Jan. 1969], No. 2495/70. Heading C1M. A composition to give black glass, particularly for light-absorbing portions in multifibre optical elements, consists of in percentages by weight: SiO 2 50-70; B 2 O 3 0-25: Li 2 O 0-2; Na 2 O 0-15; K 2 O 0-10; combined Li 2 O, Na 2 O, K 2 O 5-20; Al 2 O 3 2-4; CaO 0-5; MgO 0-8; BaO 0-5; As 2 O 3 0-2; Fe 2 O 3 0-10; V 2 O 5 0-10; combined Fe 2 O 3 , V 2 O 5 5-15. A number of examples are given. Specifications 1,113,229 and 1,229,528 are referred to. Bonded multi-fibres as in Specification 1,229,528 are packed into a borosilicate glass tube of the same glass as that of the cladding glass, evacuated, sealed and heated for ¢-1 hour at 700‹ C.
GB249570A 1969-01-22 1970-01-19 Glass Expired GB1261691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6901020A NL6901020A (en) 1969-01-22 1969-01-22

Publications (1)

Publication Number Publication Date
GB1261691A true GB1261691A (en) 1972-01-26

Family

ID=19805931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB249570A Expired GB1261691A (en) 1969-01-22 1970-01-19 Glass

Country Status (7)

Country Link
JP (1) JPS4947243B1 (en)
CA (1) CA918182A (en)
DE (1) DE2000947C3 (en)
FR (1) FR2028865A1 (en)
GB (1) GB1261691A (en)
NL (1) NL6901020A (en)
SE (1) SE349286B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201313C3 (en) * 1972-01-12 1981-08-13 Institut chimii i technologii redkich elementov i mineral'nogo syr'ja Kol'skogo filiala Akademii Nauk SSSR, Apatity, Murmanskoj oblast' Process for producing a grinding tool from corundum, cubic boron nitride or diamond as abrasive grain and a ceramic binder
DE2211442C2 (en) * 1972-03-09 1983-08-04 Institut chimii i technologii redkich elementov i mineral'nogo syr'ja Kol'skogo filiala Akademii Nauk SSSR, Apatity, Murmanskaja oblast' Ceramic binder for grinding tools
US4249925A (en) * 1978-05-12 1981-02-10 Fujitsu Limited Method of manufacturing an optical fiber
US4483617A (en) * 1981-03-04 1984-11-20 Hitachi, Ltd. Optical gyroscope with large propagation constant difference
US5268335A (en) * 1992-11-27 1993-12-07 Corning Incorporated Fast strengthening glass lenses

Also Published As

Publication number Publication date
FR2028865A1 (en) 1970-10-16
DE2000947B2 (en) 1979-04-19
JPS4947243B1 (en) 1974-12-14
NL6901020A (en) 1970-07-24
CA918182A (en) 1973-01-02
SE349286B (en) 1972-09-25
DE2000947C3 (en) 1979-12-13
DE2000947A1 (en) 1970-08-27

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