JPS5673646A - Optical glass - Google Patents

Optical glass

Info

Publication number
JPS5673646A
JPS5673646A JP15064879A JP15064879A JPS5673646A JP S5673646 A JPS5673646 A JP S5673646A JP 15064879 A JP15064879 A JP 15064879A JP 15064879 A JP15064879 A JP 15064879A JP S5673646 A JPS5673646 A JP S5673646A
Authority
JP
Japan
Prior art keywords
glass
optical glass
sro
bao
cao
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.)
Pending
Application number
JP15064879A
Other languages
Japanese (ja)
Inventor
Sadao Suwa
Goro Enomoto
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.)
OBARA OPTICAL GLASS
Ohara Inc
Original Assignee
OBARA OPTICAL GLASS
Ohara Inc
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 OBARA OPTICAL GLASS, Ohara Inc filed Critical OBARA OPTICAL GLASS
Priority to JP15064879A priority Critical patent/JPS5673646A/en
Publication of JPS5673646A publication Critical patent/JPS5673646A/en
Pending 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
    • C03C3/062—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
    • C03C3/066—Glass compositions containing silica with less than 40% silica by weight 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

PURPOSE: To enhance the acid resistance and homogeneity of optical glass by controlling the B2O3 content of the SiO2-B2O3-BaO basis composition as low as possible, introducing ZrO2, and adding one or more among CaO, SrO and ZnO.
CONSTITUTION: This optical glass has a composition consisting of, by wt., 28W 42% SiO2, 1W7% B2O3, 35W50% BaO, 1W6% ZrO2, 3W15% in total of one or more among CaO, SrO and ZnO, 0W15% PbO, 0W3% Al2O3, 0W3% TiO2, 0W 3% Na2O and/or K2O and 0W1% As2O3 and/or Sb2O3. This glass has desired optical performance and is superior to conventional glass in acid resistance. It contains no expensive component, does not tend to devitrify, and can be homogenized easily, so this glass can be mass-produced by a known method.
COPYRIGHT: (C)1981,JPO&Japio
JP15064879A 1979-11-22 1979-11-22 Optical glass Pending JPS5673646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15064879A JPS5673646A (en) 1979-11-22 1979-11-22 Optical glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15064879A JPS5673646A (en) 1979-11-22 1979-11-22 Optical glass

Publications (1)

Publication Number Publication Date
JPS5673646A true JPS5673646A (en) 1981-06-18

Family

ID=15501435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15064879A Pending JPS5673646A (en) 1979-11-22 1979-11-22 Optical glass

Country Status (1)

Country Link
JP (1) JPS5673646A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60202456A (en) * 1984-03-27 1985-10-12 Fuji Xerox Co Ltd Color electrophotographic copying device
DE19738428C1 (en) * 1997-09-03 1998-08-20 Schott Glaswerke New lead-free barium flint glass
EP1022264A2 (en) * 1999-01-22 2000-07-26 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts including such porcelain articles
US6764746B2 (en) * 2001-03-09 2004-07-20 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts
JP2013063892A (en) * 2011-09-02 2013-04-11 Nippon Electric Glass Co Ltd High-refractive-index glass
JP2015027927A (en) * 2013-04-25 2015-02-12 日本電気硝子株式会社 High refractive index glass
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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60202456A (en) * 1984-03-27 1985-10-12 Fuji Xerox Co Ltd Color electrophotographic copying device
JPH0444750B2 (en) * 1984-03-27 1992-07-22 Fuji Xerox Co Ltd
DE19738428C1 (en) * 1997-09-03 1998-08-20 Schott Glaswerke New lead-free barium flint glass
EP1022264A2 (en) * 1999-01-22 2000-07-26 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts including such porcelain articles
EP1022264A3 (en) * 1999-01-22 2000-11-29 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts including such porcelain articles
US6379805B1 (en) 1999-01-22 2002-04-30 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts including such porcelain articles
US6764746B2 (en) * 2001-03-09 2004-07-20 Ngk Insulators, Ltd. Low temperature-fired porcelain articles and electronic parts
JP2013063892A (en) * 2011-09-02 2013-04-11 Nippon Electric Glass Co Ltd High-refractive-index glass
JP2015027927A (en) * 2013-04-25 2015-02-12 日本電気硝子株式会社 High refractive index glass
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

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