FR940166A - Perfectionnements aux verres aux fluorures et aux germanates - Google Patents

Perfectionnements aux verres aux fluorures et aux germanates

Info

Publication number
FR940166A
FR940166A FR940166DA FR940166A FR 940166 A FR940166 A FR 940166A FR 940166D A FR940166D A FR 940166DA FR 940166 A FR940166 A FR 940166A
Authority
FR
France
Prior art keywords
fluoride
germanate glasses
germanate
glasses
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
Other languages
English (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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR940166A publication Critical patent/FR940166A/fr
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
    • C03C3/253—Silica-free oxide glass compositions containing germanium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70

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)
FR940166D 1946-01-29 1947-01-28 Perfectionnements aux verres aux fluorures et aux germanates Expired FR940166A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US644180A US2425403A (en) 1946-01-29 1946-01-29 Fluogermanate glass

Publications (1)

Publication Number Publication Date
FR940166A true FR940166A (fr) 1948-12-06

Family

ID=24583790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR940166D Expired FR940166A (fr) 1946-01-29 1947-01-28 Perfectionnements aux verres aux fluorures et aux germanates

Country Status (5)

Country Link
US (1) US2425403A (fr)
BE (1) BE471355A (fr)
CH (1) CH269120A (fr)
FR (1) FR940166A (fr)
GB (1) GB621979A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573380A (en) * 1943-05-07 1951-10-30 Emi Ltd Sealing cement for vacuum seals
US2659271A (en) * 1950-02-23 1953-11-17 Bell Telephone Labor Inc Silicon-germanium objective lens
US3029152A (en) * 1957-11-29 1962-04-10 Pilkington Brothers Ltd Optical glass
US3113877A (en) * 1960-10-06 1963-12-10 Int Resistance Co Partially devitrified glasses

Also Published As

Publication number Publication date
US2425403A (en) 1947-08-12
CH269120A (fr) 1950-06-30
BE471355A (fr)
GB621979A (en) 1949-04-25

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