FR1322613A - Flints extra-lourds - Google Patents

Flints extra-lourds

Info

Publication number
FR1322613A
FR1322613A FR897689A FR897689A FR1322613A FR 1322613 A FR1322613 A FR 1322613A FR 897689 A FR897689 A FR 897689A FR 897689 A FR897689 A FR 897689A FR 1322613 A FR1322613 A FR 1322613A
Authority
FR
France
Prior art keywords
flints
extra heavy
extra
heavy
heavy flints
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
FR897689A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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
Priority claimed from DE1961L0039386 external-priority patent/DE1260712B/de
Application filed by Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Priority to FR897689A priority Critical patent/FR1322613A/fr
Application granted granted Critical
Publication of FR1322613A publication Critical patent/FR1322613A/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
    • C03C3/04—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
    • 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
    • C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc

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)
FR897689A 1961-06-29 1962-05-16 Flints extra-lourds Expired FR1322613A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR897689A FR1322613A (fr) 1961-06-29 1962-05-16 Flints extra-lourds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1961L0039386 DE1260712B (de) 1961-06-29 1961-06-29 Glas, insbesondere als Werkstoff fuer optische Elemente
FR897689A FR1322613A (fr) 1961-06-29 1962-05-16 Flints extra-lourds

Publications (1)

Publication Number Publication Date
FR1322613A true FR1322613A (fr) 1963-03-29

Family

ID=25985439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR897689A Expired FR1322613A (fr) 1961-06-29 1962-05-16 Flints extra-lourds

Country Status (1)

Country Link
FR (1) FR1322613A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428012A1 (fr) * 1978-06-07 1980-01-04 Jenaer Glaswerk Schott & Gen Verres pour lunettes a haut indice de refraction et a faible masse volu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428012A1 (fr) * 1978-06-07 1980-01-04 Jenaer Glaswerk Schott & Gen Verres pour lunettes a haut indice de refraction et a faible masse volu

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