JPS5214607A - Optical glass not containing thorium - Google Patents

Optical glass not containing thorium

Info

Publication number
JPS5214607A
JPS5214607A JP9063775A JP9063775A JPS5214607A JP S5214607 A JPS5214607 A JP S5214607A JP 9063775 A JP9063775 A JP 9063775A JP 9063775 A JP9063775 A JP 9063775A JP S5214607 A JPS5214607 A JP S5214607A
Authority
JP
Japan
Prior art keywords
optical glass
containing thorium
thorium
glass
optical
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
JP9063775A
Other languages
Japanese (ja)
Other versions
JPS5342328B2 (en
Inventor
Muneo Nakahara
Yasutaka Matsuo
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 KOUGAKU GARASU SEIZOUSHIYO KK
OBARA OPTICAL GLASS
Original Assignee
OBARA KOUGAKU GARASU SEIZOUSHIYO KK
OBARA OPTICAL GLASS
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 KOUGAKU GARASU SEIZOUSHIYO KK, OBARA OPTICAL GLASS filed Critical OBARA KOUGAKU GARASU SEIZOUSHIYO KK
Priority to JP9063775A priority Critical patent/JPS5214607A/en
Publication of JPS5214607A publication Critical patent/JPS5214607A/en
Publication of JPS5342328B2 publication Critical patent/JPS5342328B2/ja
Granted 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
    • C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • 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
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead 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)
JP9063775A 1975-07-24 1975-07-24 Optical glass not containing thorium Granted JPS5214607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9063775A JPS5214607A (en) 1975-07-24 1975-07-24 Optical glass not containing thorium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9063775A JPS5214607A (en) 1975-07-24 1975-07-24 Optical glass not containing thorium

Publications (2)

Publication Number Publication Date
JPS5214607A true JPS5214607A (en) 1977-02-03
JPS5342328B2 JPS5342328B2 (en) 1978-11-10

Family

ID=14004001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9063775A Granted JPS5214607A (en) 1975-07-24 1975-07-24 Optical glass not containing thorium

Country Status (1)

Country Link
JP (1) JPS5214607A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155614A (en) * 1976-06-22 1977-12-24 Obara Optical Glass Optical glass of high difraction index and low dispersion
US4439531A (en) * 1981-07-30 1984-03-27 Schott Glaswerke CdO-ThO2 -Free, highly refractive optical glass
JPS59135647A (en) * 1983-01-21 1984-08-03 Sanyo Electric Co Ltd Capstan device of tape recorder
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
EP1533285A1 (en) * 2003-11-17 2005-05-25 Kabushiki Kaisha Ohara Optical glass
US7138349B2 (en) 2002-12-17 2006-11-21 Kabushiki Kaisha Ohara Optical glass
JP2009096645A (en) * 2007-10-12 2009-05-07 Ohara Inc Optical glass
JP2009167080A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
JP2009167081A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
JP2009167079A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
EP2305613A1 (en) * 2009-09-30 2011-04-06 Hoya Corporation Optical glass, press-molding glass material, optical element and process for producing the same
JP2014214082A (en) * 2013-04-30 2014-11-17 株式会社オハラ Optical glass, preform and optical element
WO2015024351A1 (en) * 2013-08-22 2015-02-26 成都尤利特光电科技有限公司 Optical glass of high refractive index and low dispersion and manufacture method therefor
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
WO2018017638A1 (en) * 2016-07-21 2018-01-25 Corning Incorporated Transparent silicate glasses with high fracture toughness

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194847U (en) * 1981-06-03 1982-12-10
EP1604959A1 (en) 2004-06-02 2005-12-14 Kabushiki Kaisha Ohara An optical glass

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1529337A (en) * 1966-12-12 1968-06-14 Jenaer Glas Schott Gen Veb Borate optical glasses
GB1299879A (en) * 1969-12-09 1972-12-13 Pilkington Brothers Ltd Improvements in or relating to glass compositions
JPS4837410A (en) * 1971-09-16 1973-06-02
JPS4955705A (en) * 1972-09-30 1974-05-30
JPS5014712A (en) * 1973-06-09 1975-02-17

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1529337A (en) * 1966-12-12 1968-06-14 Jenaer Glas Schott Gen Veb Borate optical glasses
GB1299879A (en) * 1969-12-09 1972-12-13 Pilkington Brothers Ltd Improvements in or relating to glass compositions
JPS4837410A (en) * 1971-09-16 1973-06-02
JPS4955705A (en) * 1972-09-30 1974-05-30
JPS5014712A (en) * 1973-06-09 1975-02-17

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155614A (en) * 1976-06-22 1977-12-24 Obara Optical Glass Optical glass of high difraction index and low dispersion
JPS546241B2 (en) * 1976-06-22 1979-03-27
US4439531A (en) * 1981-07-30 1984-03-27 Schott Glaswerke CdO-ThO2 -Free, highly refractive optical glass
JPS59135647A (en) * 1983-01-21 1984-08-03 Sanyo Electric Co Ltd Capstan device of tape recorder
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
US7138349B2 (en) 2002-12-17 2006-11-21 Kabushiki Kaisha Ohara Optical glass
US7335614B2 (en) 2002-12-17 2008-02-26 Kabushiki Kaisha Ohara Optical glass
EP1533285A1 (en) * 2003-11-17 2005-05-25 Kabushiki Kaisha Ohara Optical glass
US7368404B2 (en) 2003-11-17 2008-05-06 Kabushiki Kaisha Ohara Optical glass
JP2009096645A (en) * 2007-10-12 2009-05-07 Ohara Inc Optical glass
JP2009167080A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
JP2009167081A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
JP2009167079A (en) * 2007-12-19 2009-07-30 Panasonic Corp Optical glass composition, preform and optical element
EP2305613A1 (en) * 2009-09-30 2011-04-06 Hoya Corporation Optical glass, press-molding glass material, optical element and process for producing the same
CN102030474A (en) * 2009-09-30 2011-04-27 Hoya株式会社 Optical glass, press-molding glass material, optical element and process for producing the same
US8859444B2 (en) 2009-09-30 2014-10-14 Hoya Corporation Optical glass, press-molding glass material, optical element and process for producing the same
JP2014214082A (en) * 2013-04-30 2014-11-17 株式会社オハラ Optical glass, preform and optical element
WO2015024351A1 (en) * 2013-08-22 2015-02-26 成都尤利特光电科技有限公司 Optical glass of high refractive index and low dispersion and manufacture method therefor
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
WO2018017638A1 (en) * 2016-07-21 2018-01-25 Corning Incorporated Transparent silicate glasses with high fracture toughness
CN109476528A (en) * 2016-07-21 2019-03-15 康宁股份有限公司 Transparent silicate glass with high fracture toughness
US10427972B2 (en) 2016-07-21 2019-10-01 Corning Incorporated Transparent silicate glasses with high fracture toughness
JP2019529298A (en) * 2016-07-21 2019-10-17 コーニング インコーポレイテッド Transparent silicate glass with high fracture toughness

Also Published As

Publication number Publication date
JPS5342328B2 (en) 1978-11-10

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