ES8308291A2 - Acid-proof, hydrolytically stable, low density optical or ophthalmic glass - Google Patents

Acid-proof, hydrolytically stable, low density optical or ophthalmic glass

Info

Publication number
ES8308291A2
ES8308291A2 ES512714A ES512714A ES8308291A2 ES 8308291 A2 ES8308291 A2 ES 8308291A2 ES 512714 A ES512714 A ES 512714A ES 512714 A ES512714 A ES 512714A ES 8308291 A2 ES8308291 A2 ES 8308291A2
Authority
ES
Spain
Prior art keywords
proof
acid
low density
density optical
hydrolytically stable
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
ES512714A
Other languages
Spanish (es)
Other versions
ES512714A0 (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.)
Schott AG
Original Assignee
Schott Glaswerke 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 Schott Glaswerke AG filed Critical Schott Glaswerke AG
Publication of ES8308291A2 publication Critical patent/ES8308291A2/en
Publication of ES512714A0 publication Critical patent/ES512714A0/en
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064Glass compositions containing silica with less than 40% silica by weight containing boron
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/066Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • C03C3/074Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc

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)

Abstract

A new optical glass is proposed which has a refractive index of >/=1.69, an Abbe number >/=38 and a density of less than or equal to 3.25 g/cm<3> and which represents a further development of the optical glass disclosed in British Patent application No. 2083016A, being distinguished from the said glass in that, for the purpose of improved aptitude for continuous tank-furnace production and increased resistance to acids, it contains in % by weight:- SiO2 18-36 B2O3 3-18 GeO2 0-8 Al2O3 0-6 LiO2 0-12 Na2O 0-14 K2O 0-18 MgO 0-10.5 CaO 7-17.5 P2O5 0.5-4 SrO 0-13 BaO 0-17 ZnO 0-15 PbO 0-10 TiO2 3-14 Nb2O5 0-13 WO3 0-10 ZrO2 0-15 La2O3 0-20 Y2O3 0-16 GdO3 0-16 Yb2O3 0-16 Ta2O5 0-13 HfO2 0-5 SnO2 0-6 wherein SiO2 + B2O3 + Al2O3 + P2O3 = 38.5-41.5 Li2O + Na2O + K2O = 2-18 MgO + CaO = 13-17.5 and TiO2 + Nb2O5 + WO3 = 10-21.
ES512714A 1981-06-02 1982-05-31 PROCEDURE FOR OBTAINING OPTICAL AND OPHTHALMIC GLASS. Granted ES512714A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3121824A DE3121824C2 (en) 1981-06-02 1981-06-02 Acid-resistant, hydrolytically stable optical and ophthalmic glass of low density

Publications (2)

Publication Number Publication Date
ES8308291A2 true ES8308291A2 (en) 1983-09-01
ES512714A0 ES512714A0 (en) 1983-09-01

Family

ID=6133724

Family Applications (1)

Application Number Title Priority Date Filing Date
ES512714A Granted ES512714A0 (en) 1981-06-02 1982-05-31 PROCEDURE FOR OBTAINING OPTICAL AND OPHTHALMIC GLASS.

Country Status (7)

Country Link
JP (1) JPS57200249A (en)
BR (1) BR8203146A (en)
DE (1) DE3121824C2 (en)
ES (1) ES512714A0 (en)
FR (1) FR2510546B2 (en)
GB (1) GB2099417B (en)
IT (1) IT1157016B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021828A (en) * 1983-07-14 1985-02-04 Hoya Corp Glass for spectacle lens
DE4101365C1 (en) * 1991-01-18 1992-04-16 Schott Glaswerke, 6500 Mainz, De
JP3302892B2 (en) * 1996-10-23 2002-07-15 株式会社オハラ Optical glass
BR9809585A (en) * 1997-04-30 2000-10-17 Corning Inc "glasses with high refractive index, multifocal corrective lens containing them"
FR2762837B1 (en) * 1997-04-30 1999-07-16 Corning Sa HIGH REFRACTION INDEX GLASSES, MULTIFOCAL CORRECTIVE LENSES INCORPORATING THE SAME
DE19920865C1 (en) * 1999-05-06 2000-06-29 Schott Glas Lead-free optical borosilicate glass, for optical equipment and optical data applications, contains barium, zinc, titanium, niobium and rare earth oxides and has a high refractive index and a low Abbe number
FR2804676B1 (en) * 2000-02-04 2002-05-03 Corning Sa VERY HIGH REFRACTION INDEX GLASSES, MULTIFOCAL CORRECTIVE LENSES INCORPORATING THEM
CA2408225A1 (en) * 2001-03-13 2002-09-19 Corning Incorporated Ophthalmic segment glass with high nd
CN102674685B (en) * 2012-04-23 2014-08-27 湖北新华光信息材料有限公司 Optical glass
US11591253B2 (en) 2018-11-29 2023-02-28 Corning Incorporated High refractive index silicate glass compositions with reduced devitrification kinetics
CN109851217B (en) * 2018-12-07 2022-03-08 成都光明光电股份有限公司 Heavy lanthanum flint glass and prefabricated member, optical element and optical instrument thereof
EP4201898A1 (en) * 2021-12-21 2023-06-28 Schott Ag Glass composition, glass article and method of making it
CN116081942B (en) * 2023-02-08 2023-10-13 中建材光子科技有限公司 High-transmittance environment-friendly optical fiber core glass and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623683C3 (en) * 1975-06-02 1979-10-04 Hoya Glass Works, Ltd., Tokio Glass for eye lenses with a refractive index of at least 40 and a specific gravity of no more than 3.1g / cm3
JPS5269915A (en) * 1975-12-10 1977-06-10 Hoya Glass Works Ltd Glass for lens of eyeglasses
DE3026605C2 (en) * 1980-07-14 1983-07-07 Schott Glaswerke, 6500 Mainz Acid-proof, hydrolytically stable optical and ophthalmic borosilicate glass of low density

Also Published As

Publication number Publication date
IT8267695A0 (en) 1982-05-31
DE3121824C2 (en) 1984-06-14
JPS638056B2 (en) 1988-02-19
FR2510546A2 (en) 1983-02-04
IT1157016B (en) 1987-02-11
BR8203146A (en) 1983-05-17
ES512714A0 (en) 1983-09-01
GB2099417B (en) 1984-11-28
FR2510546B2 (en) 1985-10-25
GB2099417A (en) 1982-12-08
JPS57200249A (en) 1982-12-08
DE3121824A1 (en) 1983-02-03

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170710