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GB2318576B - Lead-free optical light flint and double-light flint glasses - Google Patents

Lead-free optical light flint and double-light flint glasses

Info

Publication number
GB2318576B
GB2318576B GB9720752A GB9720752A GB2318576B GB 2318576 B GB2318576 B GB 2318576B GB 9720752 A GB9720752 A GB 9720752A GB 9720752 A GB9720752 A GB 9720752A GB 2318576 B GB2318576 B GB 2318576B
Authority
GB
United Kingdom
Prior art keywords
light flint
double
lead
free optical
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 - Fee Related
Application number
GB9720752A
Other versions
GB9720752D0 (en
GB2318576A (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 GB9720752D0 publication Critical patent/GB9720752D0/en
Publication of GB2318576A publication Critical patent/GB2318576A/en
Application granted granted Critical
Publication of GB2318576B publication Critical patent/GB2318576B/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
    • C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
    • C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
    • C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron
    • C03C3/118—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron containing aluminium

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)
GB9720752A 1996-10-28 1997-10-01 Lead-free optical light flint and double-light flint glasses Expired - Fee Related GB2318576B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996144736 DE19644736C1 (en) 1996-10-28 1996-10-28 Light flint glass composition used in optical applications

Publications (3)

Publication Number Publication Date
GB9720752D0 GB9720752D0 (en) 1997-12-03
GB2318576A GB2318576A (en) 1998-04-29
GB2318576B true GB2318576B (en) 2000-03-15

Family

ID=7810197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9720752A Expired - Fee Related GB2318576B (en) 1996-10-28 1997-10-01 Lead-free optical light flint and double-light flint glasses

Country Status (6)

Country Link
JP (1) JP3073474B2 (en)
CN (1) CN1171817C (en)
DE (1) DE19644736C1 (en)
FR (1) FR2755125B1 (en)
GB (1) GB2318576B (en)
MY (1) MY122044A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104445928B (en) * 2014-11-11 2018-10-26 湖北新华光信息材料有限公司 A kind of light flint
EP4361112A3 (en) 2018-11-26 2024-12-11 Owens Corning Intellectual Capital, LLC High performance fiberglass composition with improved elastic modulus
JP7480142B2 (en) 2018-11-26 2024-05-09 オウェンス コーニング インテレクチュアル キャピタル リミテッド ライアビリティ カンパニー High performance glass fiber composition having improved specific modulus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973350C (en) * 1940-06-10 1960-01-28 Jenaer Glaswerk Schott & Gen Optical silicate glasses with a refractive index that is low in relation to the mean dispersion or the ª † value
JPH01133956A (en) * 1987-11-20 1989-05-26 Canon Inc Glass composition for gradient index lens
JP2795326B2 (en) * 1991-04-05 1998-09-10 株式会社オハラ Optical glass
JP2908604B2 (en) * 1991-04-09 1999-06-21 株式会社オハラ Optical glass
US5320985A (en) * 1992-10-01 1994-06-14 Kabushiki Kaisha Ohara Low refractive optical glass of a flint glass type
DE4402537C2 (en) * 1994-01-28 1996-07-25 Schott Glaswerke Lead-free optical heavy flint glass

Also Published As

Publication number Publication date
GB9720752D0 (en) 1997-12-03
FR2755125A1 (en) 1998-04-30
DE19644736C1 (en) 1997-11-27
FR2755125B1 (en) 2000-01-07
JPH10139473A (en) 1998-05-26
CN1182721A (en) 1998-05-27
GB2318576A (en) 1998-04-29
CN1171817C (en) 2004-10-20
MY122044A (en) 2006-03-31
JP3073474B2 (en) 2000-08-07

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Legal Events

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

Effective date: 20051001