GB9909134D0 - Lead-free lanthanum crown glasses and lanthanum flint glasses - Google Patents

Lead-free lanthanum crown glasses and lanthanum flint glasses

Info

Publication number
GB9909134D0
GB9909134D0 GBGB9909134.0A GB9909134A GB9909134D0 GB 9909134 D0 GB9909134 D0 GB 9909134D0 GB 9909134 A GB9909134 A GB 9909134A GB 9909134 D0 GB9909134 D0 GB 9909134D0
Authority
GB
United Kingdom
Prior art keywords
glasses
lanthanum
lead
free
crown
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
GBGB9909134.0A
Other versions
GB2337046B (en
GB2337046A (en
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB9909134D0 publication Critical patent/GB9909134D0/en
Publication of GB2337046A publication Critical patent/GB2337046A/en
Application granted granted Critical
Publication of GB2337046B publication Critical patent/GB2337046B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
GB9909134A 1998-05-06 1999-04-21 Lead-free lanthanum crown glasses and lanthanum flint glasses Expired - Fee Related GB2337046B (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 (3)

Publication Number Publication Date
GB9909134D0 true GB9909134D0 (en) 1999-06-16
GB2337046A GB2337046A (en) 1999-11-10
GB2337046B GB2337046B (en) 2001-10-17

Family

ID=7866754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9909134A Expired - Fee Related GB2337046B (en) 1998-05-06 1999-04-21 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
GB2337046B (en) 2001-10-17
JP4213293B2 (en) 2009-01-21
JP2000026133A (en) 2000-01-25
CN1200898C (en) 2005-05-11
FR2778398B1 (en) 2003-01-31
CN1234376A (en) 1999-11-10
FR2778398A1 (en) 1999-11-12
GB2337046A (en) 1999-11-10
MY122335A (en) 2006-04-29
DE19820072C1 (en) 1999-06-24

Similar Documents

Publication Publication Date Title
SG110058A1 (en) Lead-free and preferably arsenic-free lanthanum heavy flint glasses
HUP0004930A3 (en) Ampoules and manufacture thereof
IL126686A0 (en) Beverage topping
GB9717598D0 (en) Novel composition and use
GB2337046B (en) Lead-free lanthanum crown glasses and lanthanum flint glasses
GB2320023B (en) Lead-free crown glass
GB2350360B (en) Short flint special glasses
HUP0003124A3 (en) Melting furnace, in particular for glass, and use thereof
GB2321640A8 (en) Lead-free dense and extra-dense optical barium crown glass
GB9713995D0 (en) Improvements in burners
IL113725A0 (en) Preparing recombinant aprotini and its variants
GB2321629B (en) Anti-dazzle visor
GB2326078B (en) Developments relating to goggles and swim caps
ZA989021B (en) Lightweight and topless draft arm
ZA986247B (en) Antacid and papain combination
GB9718636D0 (en) Novel composition and use
GB9706332D0 (en) Improvements in aprons
AU136230S (en) Combined bottle and lens case
AU7775898A (en) Neck and drop-catching cap assembly
GB9828437D0 (en) Metal oxide varistors
GB2318576B (en) Lead-free optical light flint and double-light flint glasses
AU2164400A (en) Flint compositions and uses thereof
AU135366S (en) Combined sunglasses and visor
GB9604067D0 (en) Improvements in burners
TW402146U (en) Helmet with communication function and its communication device

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060421