FR2333758B2 - - Google Patents
Info
- Publication number
- FR2333758B2 FR2333758B2 FR7613545A FR7613545A FR2333758B2 FR 2333758 B2 FR2333758 B2 FR 2333758B2 FR 7613545 A FR7613545 A FR 7613545A FR 7613545 A FR7613545 A FR 7613545A FR 2333758 B2 FR2333758 B2 FR 2333758B2
- Authority
- FR
- France
- 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
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
- C03C4/04—Compositions for glass with special properties for photosensitive glass
- C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic 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
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
- C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
- C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead 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)
- Glass Compositions (AREA)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752520260 DE2520260C3 (de) | 1975-05-07 | 1975-05-07 | Phototropes Glas, geeignet als Nahteilmaterial zur Verschmelzung mit phototropen Fernteilgläsern, auf der Basis eines optischen Glases des Systems SiO2 -B2 O3 -Al2 O3 -La2 O3 -(ZnO) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2333758A2 FR2333758A2 (fr) | 1977-07-01 |
| FR2333758B2 true FR2333758B2 (de) | 1979-07-13 |
Family
ID=5945941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7613545A Granted FR2333758A2 (fr) | 1975-05-07 | 1976-05-06 | Verre photochromique destine a servir de materiau pour la vue de pres dans des lentilles de lunettes a plusieurs foyers |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS51134708A (de) |
| AT (1) | AT349670B (de) |
| DE (1) | DE2520260C3 (de) |
| FR (1) | FR2333758A2 (de) |
| GB (1) | GB1501820A (de) |
| IT (1) | IT1058047B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211569A (en) * | 1979-03-09 | 1980-07-08 | Corning Glass Works | High index ophthalmic glasses |
| DE3032580C2 (de) * | 1980-08-29 | 1984-09-13 | Deutsche Spezialglas Ag, 3223 Delligsen | Phototropes Mehrschichtenglas sowie Verfahren zu seiner Herstellung |
| DE3117000C2 (de) * | 1981-04-29 | 1986-05-28 | Schott Glaswerke, 6500 Mainz | Phototropes Glas mit einem Brechungsindex ≥ 1,59, einer Abbezahl ≥ 40 und einer Dichte ≦ 3,2 g/cm↑3↑ |
| JP4907850B2 (ja) * | 2003-06-11 | 2012-04-04 | 日本特殊陶業株式会社 | 低温焼成誘電体磁器組成物及びその製造方法 |
-
1975
- 1975-05-07 DE DE19752520260 patent/DE2520260C3/de not_active Expired
-
1976
- 1976-02-11 AT AT94576A patent/AT349670B/de not_active IP Right Cessation
- 1976-04-01 IT IT4881676A patent/IT1058047B/it active
- 1976-04-07 JP JP3832176A patent/JPS51134708A/ja active Granted
- 1976-05-04 GB GB1827076A patent/GB1501820A/en not_active Expired
- 1976-05-06 FR FR7613545A patent/FR2333758A2/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2520260B2 (de) | 1977-11-10 |
| JPS569458B2 (de) | 1981-03-02 |
| JPS51134708A (en) | 1976-11-22 |
| AT349670B (de) | 1979-04-25 |
| DE2520260C3 (de) | 1978-07-13 |
| IT1058047B (it) | 1982-04-10 |
| GB1501820A (en) | 1978-02-22 |
| FR2333758A2 (fr) | 1977-07-01 |
| DE2520260A1 (de) | 1976-11-18 |
| ATA94576A (de) | 1978-09-15 |