BE868645A - HIGH REFRACTION AND LOW DENSITY INDEX GLASS - Google Patents

HIGH REFRACTION AND LOW DENSITY INDEX GLASS

Info

Publication number
BE868645A
BE868645A BE188995A BE188995A BE868645A BE 868645 A BE868645 A BE 868645A BE 188995 A BE188995 A BE 188995A BE 188995 A BE188995 A BE 188995A BE 868645 A BE868645 A BE 868645A
Authority
BE
Belgium
Prior art keywords
low density
index glass
high refraction
density index
refraction
Prior art date
Application number
BE188995A
Other languages
French (fr)
Inventor
H Meyer
J E Boudot
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Publication of BE868645A publication Critical patent/BE868645A/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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/20—Compositions for glass with special properties for chemical resistant glass
    • 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
    • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
    • 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
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
BE188995A 1977-07-01 1978-06-30 HIGH REFRACTION AND LOW DENSITY INDEX GLASS BE868645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7720329A FR2395961A1 (en) 1977-07-01 1977-07-01 High refractive index low density glass - based on silica, titania and alkali metal and alkaline earth metal oxide(s)

Publications (1)

Publication Number Publication Date
BE868645A true BE868645A (en) 1979-01-02

Family

ID=9192869

Family Applications (1)

Application Number Title Priority Date Filing Date
BE188995A BE868645A (en) 1977-07-01 1978-06-30 HIGH REFRACTION AND LOW DENSITY INDEX GLASS

Country Status (2)

Country Link
BE (1) BE868645A (en)
FR (1) FR2395961A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216451C2 (en) * 1982-05-03 1984-04-19 Schott Glaswerke, 6500 Mainz Lightweight optical glass with a refractive index? 1.70, an Abbe number? 22 and a density ≦ 3.5 g / cm? 3?
US4444893A (en) * 1982-06-11 1984-04-24 Schott Glass Technologies, Inc. Highly refractive, low dispersion, low density optical glass suitable for corrective lenses
FR2828564A1 (en) * 2001-08-08 2003-02-14 Olivier Bataillard Elimination of concentric myopic iridescence in optical lenses, by coating lens edges with acrylic paint after grinding
EP4153544B1 (en) 2020-05-18 2024-09-18 Corning Incorporated Glass compositions with high refractive indexes and low densities

Also Published As

Publication number Publication date
FR2395961A1 (en) 1979-01-26
FR2395961B1 (en) 1980-02-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CORNING GLASS WORKS

Effective date: 19890630