BE868645A - HIGH REFRACTION AND LOW DENSITY INDEX GLASS - Google Patents
HIGH REFRACTION AND LOW DENSITY INDEX GLASSInfo
- Publication number
- BE868645A BE868645A BE188995A BE188995A BE868645A BE 868645 A BE868645 A BE 868645A BE 188995 A BE188995 A BE 188995A BE 188995 A BE188995 A BE 188995A BE 868645 A BE868645 A BE 868645A
- Authority
- BE
- Belgium
- Prior art keywords
- low density
- index glass
- high refraction
- density index
- refraction
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720329A FR2395961A1 (en) | 1977-07-01 | 1977-07-01 | High refractive index low density glass - based on silica, titania and alkali metal and alkaline earth metal oxide(s) |
Publications (1)
Publication Number | Publication Date |
---|---|
BE868645A true BE868645A (en) | 1979-01-02 |
Family
ID=9192869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE188995A BE868645A (en) | 1977-07-01 | 1978-06-30 | HIGH REFRACTION AND LOW DENSITY INDEX GLASS |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE868645A (en) |
FR (1) | FR2395961A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3216451C2 (en) * | 1982-05-03 | 1984-04-19 | Schott Glaswerke, 6500 Mainz | Lightweight optical glass with a refractive index? 1.70, an Abbe number? 22 and a density ≦ 3.5 g / cm? 3? |
US4444893A (en) * | 1982-06-11 | 1984-04-24 | Schott Glass Technologies, Inc. | Highly refractive, low dispersion, low density optical glass suitable for corrective lenses |
FR2828564A1 (en) * | 2001-08-08 | 2003-02-14 | Olivier Bataillard | Elimination of concentric myopic iridescence in optical lenses, by coating lens edges with acrylic paint after grinding |
EP4153544B1 (en) | 2020-05-18 | 2024-09-18 | Corning Incorporated | Glass compositions with high refractive indexes and low densities |
-
1977
- 1977-07-01 FR FR7720329A patent/FR2395961A1/en active Granted
-
1978
- 1978-06-30 BE BE188995A patent/BE868645A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2395961A1 (en) | 1979-01-26 |
FR2395961B1 (en) | 1980-02-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: CORNING GLASS WORKS Effective date: 19890630 |