FR2395961A1 - Verre d'indice de refraction eleve et de faible densite - Google Patents

Verre d'indice de refraction eleve et de faible densite

Info

Publication number
FR2395961A1
FR2395961A1 FR7720329A FR7720329A FR2395961A1 FR 2395961 A1 FR2395961 A1 FR 2395961A1 FR 7720329 A FR7720329 A FR 7720329A FR 7720329 A FR7720329 A FR 7720329A FR 2395961 A1 FR2395961 A1 FR 2395961A1
Authority
FR
France
Prior art keywords
refractive index
titania
silica
alkaline earth
low density
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.)
Granted
Application number
FR7720329A
Other languages
English (en)
Other versions
FR2395961B1 (fr
Inventor
Henri Meyer
Jean Emile Boudot
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.)
Corning Glass Works
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
Priority to FR7720329A priority Critical patent/FR2395961A1/fr
Application filed by Corning Glass Works filed Critical Corning Glass Works
Priority to NLAANVRAGE7807125,A priority patent/NL187063C/xx
Priority to BE188995A priority patent/BE868645A/fr
Priority to DE2828791A priority patent/DE2828791C2/de
Priority to JP7881178A priority patent/JPS5416524A/ja
Priority to IT68558/78A priority patent/IT1111419B/it
Priority to GB7828625A priority patent/GB2000492B/en
Priority to US05/941,549 priority patent/US4149895A/en
Publication of FR2395961A1 publication Critical patent/FR2395961A1/fr
Application granted granted Critical
Publication of FR2395961B1 publication Critical patent/FR2395961B1/fr
Granted 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
    • 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)

Abstract

L'invention se rapporte à l'industrie verrière. L'invention a pour objet un verre à fort indice de réfraction (nd d'environ 1,700) et faible densité (environ 3,10 g/cm** 3), appartenant à la famille des silicates à forte teneur en titane et contenant également des pourcentages importants d'alcalino-terreux et d'oxyde de niobium, ce verre ayant un nombre d'Abbe élevé ( nu d d'environ 35) et présentant au surplus une très bonne résistance chimique comme attestée par une perte de poids en bain acide inférieure à 0,010 mg/cm**2 comme mesurée au test AO. Application dans la lunetterie à forte correction et dans l'optique embarquée sur engins.
FR7720329A 1977-07-01 1977-07-01 Verre d'indice de refraction eleve et de faible densite Granted FR2395961A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7720329A FR2395961A1 (fr) 1977-07-01 1977-07-01 Verre d'indice de refraction eleve et de faible densite
BE188995A BE868645A (fr) 1977-07-01 1978-06-30 Verre d'indice de refraction eleve et de faible densite
DE2828791A DE2828791C2 (de) 1977-07-01 1978-06-30 Glas im System SiO↓2↓-TiO↓2↓-ZrO↓2↓-CaO-BaO-Nb↓2↓O↓5↓-Alkalioxid (-Al↓2↓O↓3↓-MgO-SrO) mit einem hohen Brechungsindex und einer geringen Dichte
JP7881178A JPS5416524A (en) 1977-07-01 1978-06-30 Glass with high refractive index and low density
NLAANVRAGE7807125,A NL187063C (nl) 1977-07-01 1978-06-30 Glas voor optische toepassingen met een zeer goede chemische bestandheid.
IT68558/78A IT1111419B (it) 1977-07-01 1978-07-03 Vetro ad elevato indice di rifrazione e bassa densita
GB7828625A GB2000492B (en) 1977-07-01 1978-07-03 High refractive index low density glass
US05/941,549 US4149895A (en) 1977-07-01 1978-09-11 Glass with high refractive index and low density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7720329A FR2395961A1 (fr) 1977-07-01 1977-07-01 Verre d'indice de refraction eleve et de faible densite

Publications (2)

Publication Number Publication Date
FR2395961A1 true FR2395961A1 (fr) 1979-01-26
FR2395961B1 FR2395961B1 (fr) 1980-02-08

Family

ID=9192869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720329A Granted FR2395961A1 (fr) 1977-07-01 1977-07-01 Verre d'indice de refraction eleve et de faible densite

Country Status (2)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526009A1 (fr) * 1982-05-03 1983-11-04 Schott Glaswerke Verre optique leger, ayant un indice de refraction 1,70, une constringence 22 et une masse volumique 3,5 g/cm3
DE3319442A1 (de) * 1982-06-11 1983-12-15 Schott Optical Glass Inc., Duryea, Pa. Optisches glas mit n(pfeil abwaerts)d(pfeil abwaerts) >=1,59, v(pfeil abwaerts)d(pfeil abwaerts) >=40,5, s <= 2,67 g.cm(pfeil hoch)-(pfeil hoch)(pfeil hoch)3(pfeil hoch) und (alpha) <=90,10(pfeil hoch)-(pfeil hoch)(pfeil hoch)7(pfeil hoch)/(grad)c
FR2828564A1 (fr) * 2001-08-08 2003-02-14 Olivier Bataillard Procede d'elimination de l'irisation concentrique myopique pour lunettes de vue
US11787729B2 (en) 2020-05-18 2023-10-17 Corning Incorporated Glass compositions with high refractive indexes and low densities

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526009A1 (fr) * 1982-05-03 1983-11-04 Schott Glaswerke Verre optique leger, ayant un indice de refraction 1,70, une constringence 22 et une masse volumique 3,5 g/cm3
DE3319442A1 (de) * 1982-06-11 1983-12-15 Schott Optical Glass Inc., Duryea, Pa. Optisches glas mit n(pfeil abwaerts)d(pfeil abwaerts) >=1,59, v(pfeil abwaerts)d(pfeil abwaerts) >=40,5, s <= 2,67 g.cm(pfeil hoch)-(pfeil hoch)(pfeil hoch)3(pfeil hoch) und (alpha) <=90,10(pfeil hoch)-(pfeil hoch)(pfeil hoch)7(pfeil hoch)/(grad)c
FR2828564A1 (fr) * 2001-08-08 2003-02-14 Olivier Bataillard Procede d'elimination de l'irisation concentrique myopique pour lunettes de vue
US11787729B2 (en) 2020-05-18 2023-10-17 Corning Incorporated Glass compositions with high refractive indexes and low densities

Also Published As

Publication number Publication date
BE868645A (fr) 1979-01-02
FR2395961B1 (fr) 1980-02-08

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Legal Events

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