JPS4921408A - - Google Patents

Info

Publication number
JPS4921408A
JPS4921408A JP6102272A JP6102272A JPS4921408A JP S4921408 A JPS4921408 A JP S4921408A JP 6102272 A JP6102272 A JP 6102272A JP 6102272 A JP6102272 A JP 6102272A JP S4921408 A JPS4921408 A JP S4921408A
Authority
JP
Japan
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
JP6102272A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP6102272A priority Critical patent/JPS4921408A/ja
Publication of JPS4921408A publication Critical patent/JPS4921408A/ja
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
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C03C3/15—Silica-free oxide glass compositions containing boron containing rare earths
    • C03C3/155—Silica-free oxide glass compositions containing boron containing rare earths containing zirconium, titanium, tantalum or niobium

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)
JP6102272A 1972-06-20 1972-06-20 Pending JPS4921408A (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6102272A JPS4921408A (da) 1972-06-20 1972-06-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6102272A JPS4921408A (da) 1972-06-20 1972-06-20

Publications (1)

Publication Number Publication Date
JPS4921408A true JPS4921408A (da) 1974-02-25

Family

ID=13159257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6102272A Pending JPS4921408A (da) 1972-06-20 1972-06-20

Country Status (1)

Country Link
JP (1) JPS4921408A (da)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104534A (en) * 1976-03-01 1977-09-02 Sanyo Kokusaku Pulp Co Dry method of crushing raw materials for cement
JPS53142423A (en) * 1977-05-19 1978-12-12 Obara Optical Glass Optical glass
DE3217517A1 (de) * 1981-06-02 1982-12-23 W.R. Grace & Co., 02140 Cambridge, Mass. Hydraulischer zement mit einem gehalt an mahlhilfsstoffen
US4472511A (en) * 1981-09-25 1984-09-18 Schott Glaswerke Highly refractive, ThO2 -free optical glasses having refractive indices of 1.86-1.94 and Abbe-index numbers greater than or equal to 30
EP1264805A1 (en) * 2001-06-06 2002-12-11 Kabushiki Kaisha Ohara Optical glass
EP1245544A3 (en) * 2001-03-27 2002-12-11 Hoya Corporation Optical glass and optical part
EP1433757A1 (en) * 2002-12-27 2004-06-30 Hoya Corporation Optical glass, press-molding glass gob and optical element
JP2006322442A (ja) * 2005-04-21 2006-11-30 Daikin Ind Ltd 送風装置
JP2007063071A (ja) * 2005-08-31 2007-03-15 Hoya Corp 光学ガラス、精密プレス成形用プリフォームとその製造方法および光学素子とその製造方法
JP2010116321A (ja) * 2010-02-15 2010-05-27 Hoya Corp 光学ガラス、精密プレス成形用プリフォームとその製造方法および光学素子とその製造方法
US7827823B2 (en) 2004-11-15 2010-11-09 Hoya Corporation Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element
US8207075B2 (en) 2008-01-31 2012-06-26 Ohara Inc. Optical glass
JP2012229148A (ja) * 2011-04-27 2012-11-22 Ohara Inc 光学ガラス及び光学素子
CN102849941A (zh) * 2011-07-27 2013-01-02 湖北新华光信息材料有限公司 一种硼酸盐镧系光学玻璃
JP2015024952A (ja) * 2010-04-30 2015-02-05 株式会社オハラ 光学ガラス、光学素子およびガラス成形体の製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008455B (de) * 1951-02-26 1957-05-16 Jenaer Glaswerk Schott & Gen Praktisch fluorfreie optische Glaeser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008455B (de) * 1951-02-26 1957-05-16 Jenaer Glaswerk Schott & Gen Praktisch fluorfreie optische Glaeser

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104534A (en) * 1976-03-01 1977-09-02 Sanyo Kokusaku Pulp Co Dry method of crushing raw materials for cement
JPS53142423A (en) * 1977-05-19 1978-12-12 Obara Optical Glass Optical glass
DE3217517A1 (de) * 1981-06-02 1982-12-23 W.R. Grace & Co., 02140 Cambridge, Mass. Hydraulischer zement mit einem gehalt an mahlhilfsstoffen
US4472511A (en) * 1981-09-25 1984-09-18 Schott Glaswerke Highly refractive, ThO2 -free optical glasses having refractive indices of 1.86-1.94 and Abbe-index numbers greater than or equal to 30
EP1245544A3 (en) * 2001-03-27 2002-12-11 Hoya Corporation Optical glass and optical part
EP1264805A1 (en) * 2001-06-06 2002-12-11 Kabushiki Kaisha Ohara Optical glass
US6797659B2 (en) * 2001-06-06 2004-09-28 Kabushiki Kaisha Ohara Optical glass
CN1308252C (zh) * 2002-12-27 2007-04-04 Hoya株式会社 光学玻璃、压制成型玻璃料块和光学元件
EP1433757A1 (en) * 2002-12-27 2004-06-30 Hoya Corporation Optical glass, press-molding glass gob and optical element
US6912093B2 (en) 2002-12-27 2005-06-28 Hoya Corporation Optical glass, press-molding glass gob and optical element
US7490485B2 (en) 2002-12-27 2009-02-17 Hoya Corporation Optical glass, press-molding glass gob and optical element
US7827823B2 (en) 2004-11-15 2010-11-09 Hoya Corporation Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element
JP2006322442A (ja) * 2005-04-21 2006-11-30 Daikin Ind Ltd 送風装置
JP2007063071A (ja) * 2005-08-31 2007-03-15 Hoya Corp 光学ガラス、精密プレス成形用プリフォームとその製造方法および光学素子とその製造方法
US7655585B2 (en) 2005-08-31 2010-02-02 Hoya Corporation Optical glass, precision press-molding preform, process for the production thereof, optical element and process for the production of the element
US8207075B2 (en) 2008-01-31 2012-06-26 Ohara Inc. Optical glass
JP2010116321A (ja) * 2010-02-15 2010-05-27 Hoya Corp 光学ガラス、精密プレス成形用プリフォームとその製造方法および光学素子とその製造方法
JP2015024952A (ja) * 2010-04-30 2015-02-05 株式会社オハラ 光学ガラス、光学素子およびガラス成形体の製造方法
JP2016104695A (ja) * 2010-04-30 2016-06-09 株式会社オハラ 光学ガラス、光学素子およびガラス成形体の製造方法
JP2012229148A (ja) * 2011-04-27 2012-11-22 Ohara Inc 光学ガラス及び光学素子
CN102849941A (zh) * 2011-07-27 2013-01-02 湖北新华光信息材料有限公司 一种硼酸盐镧系光学玻璃

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