GB606509A - Improvements in the manufacture of glass - Google Patents

Improvements in the manufacture of glass

Info

Publication number
GB606509A
GB606509A GB1627245A GB1627245A GB606509A GB 606509 A GB606509 A GB 606509A GB 1627245 A GB1627245 A GB 1627245A GB 1627245 A GB1627245 A GB 1627245A GB 606509 A GB606509 A GB 606509A
Authority
GB
United Kingdom
Prior art keywords
per cent
fluorides
weight
abbe value
alkali metal
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.)
Expired
Application number
GB1627245A
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.)
MAURICE LOYAL HUGGINS
Eastman Kodak Co
Original Assignee
MAURICE LOYAL HUGGINS
Eastman Kodak Co
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 MAURICE LOYAL HUGGINS, Eastman Kodak Co filed Critical MAURICE LOYAL HUGGINS
Priority to GB1627245A priority Critical patent/GB606509A/en
Publication of GB606509A publication Critical patent/GB606509A/en
Expired 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
    • C03C3/23—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
    • 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
    • C03C3/23—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron
    • C03C3/247—Silica-free oxide glass compositions containing halogen and at least one oxide, e.g. oxide of boron containing fluorine and phosphorus
    • 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
    • C03C3/32—Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
    • C03C3/325—Fluoride glasses
    • C03C3/326—Fluoride glasses containing beryllium

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

606,509. Optical glass. KODAK, Ltd. (Eastman Kodak Co., Sun, K. H., and Huggins, M. L.). June 26, 1945, No. 16272. Drawings to Specification. [Class 56] An optical glass is made from a fused batch of inorganic compounds at least 60 per cent by weight being fluorides including beryllium fluoride in amount between 12 and 50 per cent by weight, one or more relatively insoluble divalent metal fluorides and not more than 25 per cent by weight or 26 mol. per cent, if any, alkali metal fluoride. AlF 3 may be present, and other fluorides specified include those of La, Mg, Ca, Sr, Ba, divalent Pb, Ce, Th, Y, Pr, Nd, Sm, trivalent Bi, In and Ga. The alkali metal fluorides, if present, may be those of Na, K, Rb or Cs. The batch may also contain compounds of oxygen, sulphur, and phosphorus within specified limits. Many examples are given and their optical properties tabulated and discussed, the relationships between the refractive index for the D-line and the Abbe value, the blue partial dispersion ratio and the Abbe value, and the red partial dispersion ratio and the Abbe value being referred to, particularly in their application to lenses and lens systems. The glasses are generally colourless, but those containing Pr, Nd and Sm are, respectively, yellowish-green, pink and pale amber. Specification 462,304 is referred to.
GB1627245A 1945-06-26 1945-06-26 Improvements in the manufacture of glass Expired GB606509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1627245A GB606509A (en) 1945-06-26 1945-06-26 Improvements in the manufacture of glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1627245A GB606509A (en) 1945-06-26 1945-06-26 Improvements in the manufacture of glass

Publications (1)

Publication Number Publication Date
GB606509A true GB606509A (en) 1948-08-16

Family

ID=10074318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1627245A Expired GB606509A (en) 1945-06-26 1945-06-26 Improvements in the manufacture of glass

Country Status (1)

Country Link
GB (1) GB606509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381724A1 (en) * 1977-02-28 1978-09-22 Hoya Corp FLUOROPHOSPHATE LASER GLASSES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381724A1 (en) * 1977-02-28 1978-09-22 Hoya Corp FLUOROPHOSPHATE LASER GLASSES
US4120814A (en) * 1977-02-28 1978-10-17 Hoya Corporation Fluorophosphate-base laser glasses

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