GB2321640A8 - Lead-free dense and extra-dense optical barium crown glass - Google Patents

Lead-free dense and extra-dense optical barium crown glass

Info

Publication number
GB2321640A8
GB2321640A8 GB9727436A GB9727436A GB2321640A8 GB 2321640 A8 GB2321640 A8 GB 2321640A8 GB 9727436 A GB9727436 A GB 9727436A GB 9727436 A GB9727436 A GB 9727436A GB 2321640 A8 GB2321640 A8 GB 2321640A8
Authority
GB
United Kingdom
Prior art keywords
dense
extra
lead
free
crown glass
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.)
Granted
Application number
GB9727436A
Other versions
GB2321640B (en
GB2321640A (en
GB9727436D0 (en
Inventor
Danuta Grabowski
Uwe Kolberg
Alwin Weitzel
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB9727436D0 publication Critical patent/GB9727436D0/en
Publication of GB2321640A publication Critical patent/GB2321640A/en
Publication of GB2321640A8 publication Critical patent/GB2321640A8/en
Application granted granted Critical
Publication of GB2321640B publication Critical patent/GB2321640B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C03C3/089—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
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • 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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • 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
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths

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)
  • Glass Compositions (AREA)
GB9727436A 1997-01-30 1997-12-31 Lead-free dense and extra-dense optical barium crown glass Expired - Fee Related GB2321640B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997103391 DE19703391C1 (en) 1997-01-30 1997-01-30 A lead-free optical crown glass

Publications (4)

Publication Number Publication Date
GB9727436D0 GB9727436D0 (en) 1998-02-25
GB2321640A GB2321640A (en) 1998-08-05
GB2321640A8 true GB2321640A8 (en) 1998-08-10
GB2321640B GB2321640B (en) 2000-10-11

Family

ID=7818794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9727436A Expired - Fee Related GB2321640B (en) 1997-01-30 1997-12-31 Lead-free dense and extra-dense optical barium crown glass

Country Status (5)

Country Link
JP (1) JP3148175B2 (en)
CN (1) CN1168682C (en)
DE (1) DE19703391C1 (en)
FR (1) FR2760234B1 (en)
GB (1) GB2321640B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012116A1 (en) * 2006-03-14 2007-09-20 Schott Ag Glaser fiber cable
DE102009038812A1 (en) * 2009-08-31 2011-03-10 Uhde Gmbh High temperature resistant crystallizing glass solders
JP6547995B2 (en) * 2013-04-25 2019-07-24 日本電気硝子株式会社 High refractive index glass substrate
CN105884192B (en) * 2016-04-05 2019-06-25 湖北戈碧迦光电科技股份有限公司 A kind of special glass and its preparation method and application
CN110128007B (en) * 2017-07-03 2022-07-15 成都光明光电股份有限公司 Heavy lanthanum flint optical glass
CN111333316B (en) * 2020-03-06 2022-04-15 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument
CN111204972A (en) * 2020-03-06 2020-05-29 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument
CN111320382A (en) * 2020-03-06 2020-06-23 成都光明光电股份有限公司 Optical glass

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460954A (en) * 1964-05-21 1969-08-12 Bendix Corp Bao-nb2o5-sio2 glass compositions for use in fiber-optics
JPS594390B2 (en) * 1977-01-27 1984-01-30 株式会社保谷硝子 optical glass
JPS5814376B2 (en) * 1978-06-06 1983-03-18 株式会社保谷硝子 optical glass
JPS60221338A (en) * 1984-04-12 1985-11-06 Ohara Inc Optical glass
JP2535407B2 (en) * 1989-05-31 1996-09-18 ホーヤ株式会社 Optical glass
JP3195789B2 (en) * 1990-05-29 2001-08-06 ホーヤ株式会社 Optical glass and molded products
JP2795326B2 (en) * 1991-04-05 1998-09-10 株式会社オハラ Optical glass
JP2565813B2 (en) * 1991-07-05 1996-12-18 株式会社オハラ Optical glass
JP2714915B2 (en) * 1992-09-25 1998-02-16 株式会社オハラ Optical glass
JP3797679B2 (en) * 1994-10-14 2006-07-19 株式会社オハラ Optical glass
DE19631581C1 (en) * 1996-08-05 1997-11-27 Schott Glaswerke Barium flint glass used in optical applications

Also Published As

Publication number Publication date
JPH10212133A (en) 1998-08-11
GB2321640B (en) 2000-10-11
JP3148175B2 (en) 2001-03-19
GB2321640A (en) 1998-08-05
CN1168682C (en) 2004-09-29
FR2760234A1 (en) 1998-09-04
CN1197042A (en) 1998-10-28
DE19703391C1 (en) 1998-02-26
GB9727436D0 (en) 1998-02-25
FR2760234B1 (en) 2000-02-25

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Legal Events

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

Effective date: 20051231