JPS569458B2 - - Google Patents
Info
- Publication number
- JPS569458B2 JPS569458B2 JP3832176A JP3832176A JPS569458B2 JP S569458 B2 JPS569458 B2 JP S569458B2 JP 3832176 A JP3832176 A JP 3832176A JP 3832176 A JP3832176 A JP 3832176A JP S569458 B2 JPS569458 B2 JP S569458B2
- Authority
- JP
- Japan
- 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 (en) | 1975-05-07 | 1975-05-07 | Phototropic glass, suitable as a near-part material for fusing with photochromic far-part glasses, based on an optical glass of the SiO2 -B2 O3 -Al2 O3 -La2 O3 - (ZnO) system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51134708A JPS51134708A (en) | 1976-11-22 |
| JPS569458B2 true JPS569458B2 (en) | 1981-03-02 |
Family
ID=5945941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3832176A Granted JPS51134708A (en) | 1975-05-07 | 1976-04-07 | Glass as inside material for adhering to known optically relieving outside glass aiming at glass for multiifocusing eye glasses |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS51134708A (en) |
| AT (1) | AT349670B (en) |
| DE (1) | DE2520260C3 (en) |
| FR (1) | FR2333758A2 (en) |
| GB (1) | GB1501820A (en) |
| IT (1) | IT1058047B (en) |
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 (en) * | 1980-08-29 | 1984-09-13 | Deutsche Spezialglas Ag, 3223 Delligsen | Phototropic multilayer glass and process for its manufacture |
| DE3117000C2 (en) * | 1981-04-29 | 1986-05-28 | Schott Glaswerke, 6500 Mainz | Phototropic glass with a refractive index? 1.59, an Abbe number? 40 and a density ≦ 3.2 g / cm? 3? |
| JP4907850B2 (en) * | 2003-06-11 | 2012-04-04 | 日本特殊陶業株式会社 | Low-temperature fired dielectric ceramic composition and manufacturing method thereof |
-
1975
- 1975-05-07 DE DE19752520260 patent/DE2520260C3/en not_active Expired
-
1976
- 1976-02-11 AT AT94576A patent/AT349670B/en not_active IP Right Cessation
- 1976-04-01 IT IT4881676A patent/IT1058047B/en active
- 1976-04-07 JP JP3832176A patent/JPS51134708A/en active Granted
- 1976-05-04 GB GB1827076A patent/GB1501820A/en not_active Expired
- 1976-05-06 FR FR7613545A patent/FR2333758A2/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2520260B2 (en) | 1977-11-10 |
| FR2333758B2 (en) | 1979-07-13 |
| JPS51134708A (en) | 1976-11-22 |
| AT349670B (en) | 1979-04-25 |
| DE2520260C3 (en) | 1978-07-13 |
| IT1058047B (en) | 1982-04-10 |
| GB1501820A (en) | 1978-02-22 |
| FR2333758A2 (en) | 1977-07-01 |
| DE2520260A1 (en) | 1976-11-18 |
| ATA94576A (en) | 1978-09-15 |