MY122044A - Lead-free optical light and double-light flint glasses - Google Patents

Lead-free optical light and double-light flint glasses

Info

Publication number
MY122044A
MY122044A MYPI9705068A MY122044A MY 122044 A MY122044 A MY 122044A MY PI9705068 A MYPI9705068 A MY PI9705068A MY 122044 A MY122044 A MY 122044A
Authority
MY
Malaysia
Prior art keywords
light
double
lead
free optical
la2o3
Prior art date
Application number
Inventor
Danuta Grabowski
Uwe Dr Kolberg
Alwin Weitzel
Original Assignee
Schott 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 Schott Ag filed Critical Schott Ag
Publication of MY122044A publication Critical patent/MY122044A/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
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
    • C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
    • C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron
    • C03C3/118—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron containing aluminium

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

LEAD-FREE OPTICAL LIGHT FLINT AND DOUBLE-LIGHT FLINT GLASSES HAVING A REFRACTIVE INDEX ND OF BETWEEN 1.52 AND 1.57 AND AN ABBE COEFFICIENT VD OF BETWEEN 43 AND 52 ARE DESCRIBED, WHICH HAVE THE FOLLOWING COMPOSITION (IN % BY WEIGHT BASED ON OXIDES) : SIO2 48-55, B2 O3 7-9, K2O 18-20, A12 O3 7-9, LA2O3 0.1-2, ZRO2 0-1, (ALGEBRAIC SUM) LA2O3+ZRO2 0.5-2, TIO2 5.5-12, F- 1.5-6, (A12O3+LA2O3) / (TIO2+ZRO2) = 0.73-1.15. THE GLASSES SHOW OUTSTANDING CRYSTALLIZATION STABILITY AND VERY GOOD CHEMICAL RESISTANCE.FINING AGENTS SB203 AND/OR C1 MAY BE PRESENT IN AMOUNT UP TO 0.5 WT %.
MYPI9705068 1996-10-28 1997-10-27 Lead-free optical light and double-light flint glasses MY122044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996144736 DE19644736C1 (en) 1996-10-28 1996-10-28 Light flint glass composition used in optical applications

Publications (1)

Publication Number Publication Date
MY122044A true MY122044A (en) 2006-03-31

Family

ID=7810197

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9705068 MY122044A (en) 1996-10-28 1997-10-27 Lead-free optical light and double-light flint glasses

Country Status (6)

Country Link
JP (1) JP3073474B2 (en)
CN (1) CN1171817C (en)
DE (1) DE19644736C1 (en)
FR (1) FR2755125B1 (en)
GB (1) GB2318576B (en)
MY (1) MY122044A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104445928B (en) * 2014-11-11 2018-10-26 湖北新华光信息材料有限公司 A kind of light flint
CA3117892A1 (en) 2018-11-26 2020-06-04 Owens Corning Intellectual Capital, Llc High performance fiberglass composition with improved elastic modulus
MX2021005663A (en) 2018-11-26 2021-07-07 Owens Corning Intellectual Capital Llc High performance fiberglass composition with improved specific modulus.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973350C (en) * 1940-06-10 1960-01-28 Jenaer Glaswerk Schott & Gen Optical silicate glasses with a refractive index that is low in relation to the mean dispersion or the ª † value
JPH01133956A (en) * 1987-11-20 1989-05-26 Canon Inc Glass composition for distributed refractive index lens
JP2795326B2 (en) * 1991-04-05 1998-09-10 株式会社オハラ Optical glass
JP2908604B2 (en) * 1991-04-09 1999-06-21 株式会社オハラ Optical glass
US5320985A (en) * 1992-10-01 1994-06-14 Kabushiki Kaisha Ohara Low refractive optical glass of a flint glass type
DE4402537C2 (en) * 1994-01-28 1996-07-25 Schott Glaswerke Lead-free optical heavy flint glass

Also Published As

Publication number Publication date
FR2755125A1 (en) 1998-04-30
JP3073474B2 (en) 2000-08-07
DE19644736C1 (en) 1997-11-27
GB9720752D0 (en) 1997-12-03
GB2318576B (en) 2000-03-15
CN1182721A (en) 1998-05-27
FR2755125B1 (en) 2000-01-07
GB2318576A (en) 1998-04-29
JPH10139473A (en) 1998-05-26
CN1171817C (en) 2004-10-20

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