FR1544665A - Optical crown with partial dispersion different from normal - Google Patents

Optical crown with partial dispersion different from normal

Info

Publication number
FR1544665A
FR1544665A FR99471A FR99471A FR1544665A FR 1544665 A FR1544665 A FR 1544665A FR 99471 A FR99471 A FR 99471A FR 99471 A FR99471 A FR 99471A FR 1544665 A FR1544665 A FR 1544665A
Authority
FR
France
Prior art keywords
normal
partial dispersion
dispersion different
optical crown
crown
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
FR99471A
Other languages
French (fr)
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
Application filed by Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Priority to FR99471A priority Critical patent/FR1544665A/en
Application granted granted Critical
Publication of FR1544665A publication Critical patent/FR1544665A/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
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • 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

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)
FR99471A 1966-05-03 1967-03-20 Optical crown with partial dispersion different from normal Expired FR1544665A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR99471A FR1544665A (en) 1966-05-03 1967-03-20 Optical crown with partial dispersion different from normal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL0053490 1966-05-03
FR99471A FR1544665A (en) 1966-05-03 1967-03-20 Optical crown with partial dispersion different from normal

Publications (1)

Publication Number Publication Date
FR1544665A true FR1544665A (en) 1968-11-08

Family

ID=25986061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR99471A Expired FR1544665A (en) 1966-05-03 1967-03-20 Optical crown with partial dispersion different from normal

Country Status (1)

Country Link
FR (1) FR1544665A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847894A1 (en) * 2002-12-03 2004-06-04 Schott Glas OPTICAL LENSES WITH TG <500 ° C, PREFERABLY WITHOUT PB AND AS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847894A1 (en) * 2002-12-03 2004-06-04 Schott Glas OPTICAL LENSES WITH TG <500 ° C, PREFERABLY WITHOUT PB AND AS
NL1024931C2 (en) * 2002-12-03 2005-06-21 Schott Glas Optical glass with Tg <500, which is preferably Pb-free and As-free.

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