JPS5678447A - Optical glass - Google Patents

Optical glass

Info

Publication number
JPS5678447A
JPS5678447A JP15527779A JP15527779A JPS5678447A JP S5678447 A JPS5678447 A JP S5678447A JP 15527779 A JP15527779 A JP 15527779A JP 15527779 A JP15527779 A JP 15527779A JP S5678447 A JPS5678447 A JP S5678447A
Authority
JP
Japan
Prior art keywords
optical glass
sio
0w12wt
10w25wt
cdo
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
JP15527779A
Other languages
Japanese (ja)
Inventor
Toshiro Takahashi
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.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP15527779A priority Critical patent/JPS5678447A/en
Publication of JPS5678447A publication Critical patent/JPS5678447A/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

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 prepare an optical glass having high refractive index and low dispersion, producible stably, and free from ThO2, CdO, etc. which are hazardous to human health, by adding Gd2O3, Y2O3, etc. at specific weight ratios to main components consisting of SiO2, B2O3, La2O3, and Yb2O3.
CONSTITUTION: The titled optical glass is composed of the following constituents: (A) 10W25wt% of SiO2, (B) 3W20% of B2O3, (C) 5W60% of La2O3, (D) 5W65% of Yb2O3, (E) 0W15% of Gd2O3 and 0W15% of Y2O3 provided that La2O3+ Yb2O3+Gd2O3+Y2O3=30W78%, and (F) 0W12wt% of ZrO2, 0W15% of HfO2, 0W15% of Sc2O3, 0W10% of In2O3, 0W3% of SnO2, 0W10% of WO3, 0W10% of TiO2, 0W25% of Ta2O5, 0W20% of Nb2O5, 0W20% of PbO, 0W15% of Al2O3, 0W 10% of GeO2, 0W20% of Ga2O3, 0W25% of RO (MgO, CaO, BaO, SrO, or ZnO), 0W0.5% of R2O (Li2O, K2O, or Na2O) and 0W0.3% of As2O3.
COPYRIGHT: (C)1981,JPO&Japio
JP15527779A 1979-11-29 1979-11-29 Optical glass Pending JPS5678447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15527779A JPS5678447A (en) 1979-11-29 1979-11-29 Optical glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15527779A JPS5678447A (en) 1979-11-29 1979-11-29 Optical glass

Publications (1)

Publication Number Publication Date
JPS5678447A true JPS5678447A (en) 1981-06-27

Family

ID=15602376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15527779A Pending JPS5678447A (en) 1979-11-29 1979-11-29 Optical glass

Country Status (1)

Country Link
JP (1) JPS5678447A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510547A1 (en) * 1981-07-30 1983-02-04 Schott Glaswerke OPTICAL GLASS WITHOUT CDO AND THO2 AND HAVING A HIGH REFRACTION INDEX
FR2541988A1 (en) * 1983-03-03 1984-09-07 Schott Glaswerke OPTICAL GLASS WITH A REFRACTION INDEX 1, 70, A CONSTRINGENCE 48, GOOD STABILITY TO DEVITRIFICATION AND GOOD RESISTANCE TO CHEMICALS
US4584279A (en) * 1983-12-01 1986-04-22 Schott Glaswerke Optical glass with refractive indices>1.90, Abbe numbers>25 and high chemical stability
US4642297A (en) * 1982-01-22 1987-02-10 Schott Glaswerke Optical glass with refractive indexes of 1.60-1.69 and Abbe numbers of at least 54 with particularly low density and particularly good chemical stability
FR2590888A1 (en) * 1985-11-29 1987-06-05 Corning Glass Works LOW-DENSITY, HIGH-REFRACTIVE LOW-DISPERSION OPHTHALMIC LENSES
JPS62132741A (en) * 1985-11-29 1987-06-16 コ−ニング　グラス　ワ−クス Optical and ophthalmic glass
DE4222322C1 (en) * 1992-07-08 1993-12-02 Schott Glaswerke Optical glass - with high negative part dispersion in blue spectrum range as well as high refraction index and abbe number
WO1998019974A1 (en) * 1996-11-04 1998-05-14 Bay Glass Research Optical glass
JP2009096645A (en) * 2007-10-12 2009-05-07 Ohara Inc Optical glass
US7560405B2 (en) 2002-03-18 2009-07-14 Hoya Corporation Optical glass for precision press molding, preform for precision press molding, and process for the production thereof
US7563738B2 (en) * 2004-11-09 2009-07-21 Kabushiki Kaisha Ohara Optical glass
DE102009011507A1 (en) 2009-03-06 2010-09-09 Schott Ag Optical glass, useful for producing optical elements such as lenses and prisms, comprises silicon dioxide, diboron trioxide, aluminum trioxide, lanthanum oxide, niobium oxide, calcium oxide, zinc oxide, titanium dioxide and zirconium oxide
US8034733B2 (en) * 2006-03-22 2011-10-11 Hoya Corporation Optical glass, optical element and method of manufacturing thereof
US20150094198A1 (en) * 2013-09-30 2015-04-02 Schott Ag Optical glass and optical element
CN104761147A (en) * 2015-04-24 2015-07-08 中国建筑材料科学研究总院 Special flint glass and preparation method thereof
JP2016124726A (en) * 2014-12-26 2016-07-11 Hoya株式会社 Glass, glass material for press molding, optical element blank and optical element
JP2017039640A (en) * 2011-12-28 2017-02-23 株式会社オハラ Optical glass and optical element
CN107879620A (en) * 2016-09-29 2018-04-06 成都光明光电股份有限公司 Optical glass, gas preform and optical element
CN109665714A (en) * 2019-02-28 2019-04-23 成都光明光电股份有限公司 Optical glass, gas preform, optical element and optical instrument
CN109987838A (en) * 2019-04-24 2019-07-09 成都光明光电股份有限公司 Optical glass, gas preform, optical element and optical instrument
JP2020026381A (en) * 2018-08-16 2020-02-20 Hoya株式会社 Optical glass, optical element blank, and optical element
WO2024004863A1 (en) * 2022-06-29 2024-01-04 Ａｇｃ株式会社 Glass, optical filter, and optical device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512717A (en) * 1974-06-28 1976-01-10 Sumita Optical Glass KOKUTSUSETSUTEIBUNSANKOGAKUGARASU
JPS52155614A (en) * 1976-06-22 1977-12-24 Obara Optical Glass Optical glass of high difraction index and low dispersion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512717A (en) * 1974-06-28 1976-01-10 Sumita Optical Glass KOKUTSUSETSUTEIBUNSANKOGAKUGARASU
JPS52155614A (en) * 1976-06-22 1977-12-24 Obara Optical Glass Optical glass of high difraction index and low dispersion

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510547A1 (en) * 1981-07-30 1983-02-04 Schott Glaswerke OPTICAL GLASS WITHOUT CDO AND THO2 AND HAVING A HIGH REFRACTION INDEX
US4642297A (en) * 1982-01-22 1987-02-10 Schott Glaswerke Optical glass with refractive indexes of 1.60-1.69 and Abbe numbers of at least 54 with particularly low density and particularly good chemical stability
FR2541988A1 (en) * 1983-03-03 1984-09-07 Schott Glaswerke OPTICAL GLASS WITH A REFRACTION INDEX 1, 70, A CONSTRINGENCE 48, GOOD STABILITY TO DEVITRIFICATION AND GOOD RESISTANCE TO CHEMICALS
US4584279A (en) * 1983-12-01 1986-04-22 Schott Glaswerke Optical glass with refractive indices>1.90, Abbe numbers>25 and high chemical stability
FR2590888A1 (en) * 1985-11-29 1987-06-05 Corning Glass Works LOW-DENSITY, HIGH-REFRACTIVE LOW-DISPERSION OPHTHALMIC LENSES
JPS62132741A (en) * 1985-11-29 1987-06-16 コ−ニング　グラス　ワ−クス Optical and ophthalmic glass
DE4222322C1 (en) * 1992-07-08 1993-12-02 Schott Glaswerke Optical glass - with high negative part dispersion in blue spectrum range as well as high refraction index and abbe number
WO1998019974A1 (en) * 1996-11-04 1998-05-14 Bay Glass Research Optical glass
US7560405B2 (en) 2002-03-18 2009-07-14 Hoya Corporation Optical glass for precision press molding, preform for precision press molding, and process for the production thereof
US7563738B2 (en) * 2004-11-09 2009-07-21 Kabushiki Kaisha Ohara Optical glass
US8034733B2 (en) * 2006-03-22 2011-10-11 Hoya Corporation Optical glass, optical element and method of manufacturing thereof
JP2009096645A (en) * 2007-10-12 2009-05-07 Ohara Inc Optical glass
DE102009011507A1 (en) 2009-03-06 2010-09-09 Schott Ag Optical glass, useful for producing optical elements such as lenses and prisms, comprises silicon dioxide, diboron trioxide, aluminum trioxide, lanthanum oxide, niobium oxide, calcium oxide, zinc oxide, titanium dioxide and zirconium oxide
JP2017039640A (en) * 2011-12-28 2017-02-23 株式会社オハラ Optical glass and optical element
DE102013219683B4 (en) * 2013-09-30 2017-01-12 Schott Ag Optical glass and use thereof
US20150094198A1 (en) * 2013-09-30 2015-04-02 Schott Ag Optical glass and optical element
DE102013219683A1 (en) 2013-09-30 2015-04-02 Schott Ag Optical glass
US9284216B2 (en) * 2013-09-30 2016-03-15 Schott Ag Optical glass and optical element
JP2016124726A (en) * 2014-12-26 2016-07-11 Hoya株式会社 Glass, glass material for press molding, optical element blank and optical element
CN104761147A (en) * 2015-04-24 2015-07-08 中国建筑材料科学研究总院 Special flint glass and preparation method thereof
CN107879620A (en) * 2016-09-29 2018-04-06 成都光明光电股份有限公司 Optical glass, gas preform and optical element
JP2020026381A (en) * 2018-08-16 2020-02-20 Hoya株式会社 Optical glass, optical element blank, and optical element
CN109665714A (en) * 2019-02-28 2019-04-23 成都光明光电股份有限公司 Optical glass, gas preform, optical element and optical instrument
CN109987838A (en) * 2019-04-24 2019-07-09 成都光明光电股份有限公司 Optical glass, gas preform, optical element and optical instrument
CN109987838B (en) * 2019-04-24 2022-04-15 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument
WO2024004863A1 (en) * 2022-06-29 2024-01-04 Ａｇｃ株式会社 Glass, optical filter, and optical device

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