GB2075001B - Glasses based on hafnium fluoride - Google Patents

Glasses based on hafnium fluoride

Info

Publication number
GB2075001B
GB2075001B GB8013565A GB8013565A GB2075001B GB 2075001 B GB2075001 B GB 2075001B GB 8013565 A GB8013565 A GB 8013565A GB 8013565 A GB8013565 A GB 8013565A GB 2075001 B GB2075001 B GB 2075001B
Authority
GB
United Kingdom
Prior art keywords
glasses based
hafnium fluoride
hafnium
fluoride
glasses
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
GB8013565A
Other versions
GB2075001A (en
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 GB8013565A priority Critical patent/GB2075001B/en
Priority to JP3802081A priority patent/JPS56160343A/en
Priority to DE19813113952 priority patent/DE3113952A1/en
Priority to NZ19680781A priority patent/NZ196807A/en
Priority to AU69663/81A priority patent/AU541911B2/en
Priority to CH2693/81A priority patent/CH648006A5/en
Priority to FR8108177A priority patent/FR2481262A1/en
Publication of GB2075001A publication Critical patent/GB2075001A/en
Application granted granted Critical
Publication of GB2075001B publication Critical patent/GB2075001B/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
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/041—Non-oxide glass compositions
    • C03C13/042—Fluoride 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
    • C03C3/32—Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
    • C03C3/325—Fluoride glasses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
GB8013565A 1980-04-24 1980-04-24 Glasses based on hafnium fluoride Expired GB2075001B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB8013565A GB2075001B (en) 1980-04-24 1980-04-24 Glasses based on hafnium fluoride
JP3802081A JPS56160343A (en) 1980-04-24 1981-03-18 Fluoride glass
DE19813113952 DE3113952A1 (en) 1980-04-24 1981-04-07 INFRARED TRANSPARENT FLUORIDE GLASS, ESPECIALLY FOR OPTICAL FIBERGLASS FIBERS
NZ19680781A NZ196807A (en) 1980-04-24 1981-04-14 Infra-red transmissive fluoride glass and optical fibres therefrom
AU69663/81A AU541911B2 (en) 1980-04-24 1981-04-21 Fluoride glass
CH2693/81A CH648006A5 (en) 1980-04-24 1981-04-24 INFRARED TRANSPARENT FLUORIDE GLASS, ESPECIALLY FOR OPTICAL FIBERGLASS FIBERS.
FR8108177A FR2481262A1 (en) 1980-04-24 1981-04-24 GLASSES OF FLUORIDES AND OPTICAL FIBERS CONSISTING OF THESE GLASSES FOR TRANSMISSION IN THE INFRARED BAND

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8013565A GB2075001B (en) 1980-04-24 1980-04-24 Glasses based on hafnium fluoride

Publications (2)

Publication Number Publication Date
GB2075001A GB2075001A (en) 1981-11-11
GB2075001B true GB2075001B (en) 1983-08-17

Family

ID=10512987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8013565A Expired GB2075001B (en) 1980-04-24 1980-04-24 Glasses based on hafnium fluoride

Country Status (7)

Country Link
JP (1) JPS56160343A (en)
AU (1) AU541911B2 (en)
CH (1) CH648006A5 (en)
DE (1) DE3113952A1 (en)
FR (1) FR2481262A1 (en)
GB (1) GB2075001B (en)
NZ (1) NZ196807A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8419829D0 (en) * 1984-08-03 1984-09-05 British Telecomm Treating glass compositions
JPS6158833A (en) * 1984-08-31 1986-03-26 Nippon Telegr & Teleph Corp <Ntt> Radiation dosimeter glass
GB8703501D0 (en) * 1987-02-16 1987-03-25 British Telecomm Halide fibre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354977A1 (en) * 1976-06-15 1978-01-13 Anvar Metal fluoride glasses esp. for infrared optics - are based on zirconium or hafnium tetrafluoride with addition of other metal fluorides
FR2384724A1 (en) * 1977-03-24 1978-10-20 Anvar Metal fluoride glasses esp. for infrared optics - are based on zirconium or hafnium tetrafluoride with addition of other metal fluorides
FR2396981A1 (en) * 1977-07-05 1979-02-02 Anvar Optical fibre mfr. - using fluoride glass compsns. contg. transition and/or rare earth metals

Also Published As

Publication number Publication date
NZ196807A (en) 1983-03-15
GB2075001A (en) 1981-11-11
AU6966381A (en) 1981-10-29
CH648006A5 (en) 1985-02-28
DE3113952A1 (en) 1981-12-24
FR2481262A1 (en) 1981-10-30
JPS56160343A (en) 1981-12-10
AU541911B2 (en) 1985-01-31
FR2481262B1 (en) 1985-02-01

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee