MY122335A - Lead-free lanthanum crown glasses and lanthanum flint glasses - Google Patents

Lead-free lanthanum crown glasses and lanthanum flint glasses

Info

Publication number
MY122335A
MY122335A MYPI9901621A MY122335A MY 122335 A MY122335 A MY 122335A MY PI9901621 A MYPI9901621 A MY PI9901621A MY 122335 A MY122335 A MY 122335A
Authority
MY
Malaysia
Prior art keywords
glasses
lanthanum
lead
free
crown
Prior art date
Application number
Inventor
Danuta Grabowski
Uwe Dr Kolberg
Silke Wolff
Magdalena Winkler-Trudewig
Original Assignee
Zeiss Stiftung
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 Zeiss Stiftung filed Critical Zeiss Stiftung
Publication of MY122335A publication Critical patent/MY122335A/en

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

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

THE INVENTION RELATES TO LEAD-FREE LANTHANUM CROWN GLASSES AND LANTHANUM FLINT GLASSES HAVING A REFRACTIVE INDEX Nd OF BETWEEN 1.66 AND 1.76 AND AN ABBE NUMBER Vd OF BETWEEN 46 AND 57, HAVING A COMPOSITION ( IN % BY WEIGHT, BASED ON OXIDE ) OF SIO2 1 - 9 ; B2O2 29 - 43.5 ; La2O3 27 - 40 ; CaO 5.5 - 10 ; srO 0 - 3.5 ; MgO 0 - 4.5 ; ZnO 3.5 - 10 ; TiO2 0.1 - 3.5 ; ZrO2 3.5 - 9.
MYPI9901621 1998-05-06 1999-04-26 Lead-free lanthanum crown glasses and lanthanum flint glasses MY122335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998120072 DE19820072C1 (en) 1998-05-06 1998-05-06 New lead-free optical lanthanum crown and flint glasses

Publications (1)

Publication Number Publication Date
MY122335A true MY122335A (en) 2006-04-29

Family

ID=7866754

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9901621 MY122335A (en) 1998-05-06 1999-04-26 Lead-free lanthanum crown glasses and lanthanum flint glasses

Country Status (6)

Country Link
JP (1) JP4213293B2 (en)
CN (1) CN1200898C (en)
DE (1) DE19820072C1 (en)
FR (1) FR2778398B1 (en)
GB (1) GB2337046B (en)
MY (1) MY122335A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW593195B (en) * 2001-02-05 2004-06-21 Koninkl Philips Electronics Nv Multicomponent glass, glass fiber, twister and taper
DE10227494C1 (en) 2002-06-19 2003-12-04 Schott Glas Lead-free optical glass with specified refractive index and Abbe number, for optics, laser technology and communications, has specified composition
US7292766B2 (en) * 2003-04-28 2007-11-06 3M Innovative Properties Company Use of glasses containing rare earth oxide, alumina, and zirconia and dopant in optical waveguides
DE102005023134A1 (en) * 2005-05-19 2006-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Luminescence conversion LED
JP5727691B2 (en) * 2008-04-30 2015-06-03 株式会社オハラ Optical glass, optical element and optical instrument
CN101982434A (en) * 2010-10-29 2011-03-02 南通晶鑫光学玻璃有限公司 Environment-friendly lanthanum optical glass TZLaF4 with high refractive index and low chromatic dispersion
JP2014196244A (en) * 2014-07-03 2014-10-16 株式会社オハラ Optical glass
JP6808385B2 (en) * 2015-11-06 2021-01-06 株式会社オハラ Optical glass, preform materials and optical elements
CN109761492A (en) * 2019-03-27 2019-05-17 湖北戈碧迦光电科技股份有限公司 Environmentally friendly lanthanum crown optical glass and its preparation method and application

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB727305A (en) * 1952-08-08 1955-03-30 Carl Beiss Shiftung Optical glass
GB746147A (en) * 1953-07-17 1956-03-07 Zeiss Stiftung Optical glass
DE1061976B (en) * 1958-02-19 1959-07-23 Leitz Ernst Gmbh Borosilicate glass
GB1136239A (en) * 1964-12-21 1968-12-11 Sylvania Electric Prod Electroluminescent lamps with glass dielectric compositions
GB1317395A (en) * 1971-03-22 1973-05-16 Plessey Co Ltd Filter optical glass
DE2265703C2 (en) * 1971-07-30 1985-06-20 Hoya Glass Works, Ltd, Tokio/Tokyo Thorium oxide-free optical glass based on B? 2? 0? 3? -Gd? 2? 0? 3? -La? 2? 0? 3?
JPS534023A (en) * 1976-07-02 1978-01-14 Obara Optical Glass Optical glass
JPS5371115A (en) * 1976-12-07 1978-06-24 Nippon Chemical Ind Optical glass
JPS543115A (en) * 1977-06-09 1979-01-11 Obara Optical Glass Optical glass
JPS55121925A (en) * 1979-03-14 1980-09-19 Ohara Inc Optical glass
JPS60221338A (en) * 1984-04-12 1985-11-06 Ohara Inc Optical glass
JPS62100449A (en) * 1985-10-24 1987-05-09 Ohara Inc Optical glass
JPH0859282A (en) * 1994-08-24 1996-03-05 Nikon Corp Optical glass
JP4024907B2 (en) * 1997-09-03 2007-12-19 株式会社オハラ Optical glass

Also Published As

Publication number Publication date
CN1200898C (en) 2005-05-11
FR2778398A1 (en) 1999-11-12
DE19820072C1 (en) 1999-06-24
GB2337046A (en) 1999-11-10
GB2337046B (en) 2001-10-17
JP4213293B2 (en) 2009-01-21
FR2778398B1 (en) 2003-01-31
CN1234376A (en) 1999-11-10
JP2000026133A (en) 2000-01-25
GB9909134D0 (en) 1999-06-16

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