DD43144A - - Google Patents
Info
- Publication number
- DD43144A DD43144A DD43144DA DD43144A DD 43144 A DD43144 A DD 43144A DD 43144D A DD43144D A DD 43144DA DD 43144 A DD43144 A DD 43144A
- Authority
- DD
- German Democratic Republic
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
- C03C3/062—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
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
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- 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
- C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1961L0039386 DE1260712B (en) | 1961-06-29 | 1961-06-29 | Glass, especially as a material for optical elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD43144A true DD43144A (en) |
Family
ID=7268630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD43144D DD43144A (en) | 1961-06-29 |
Country Status (3)
| Country | Link |
|---|---|
| DD (1) | DD43144A (en) |
| DE (1) | DE1260712B (en) |
| GB (1) | GB974438A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513004A (en) * | 1966-04-11 | 1970-05-19 | Owens Illinois Inc | La2o3-tio2-ta2o5-zro2-bao-b2o3-sio2 optical glass |
| DE2824982C3 (en) | 1978-06-07 | 1981-04-30 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | High refractive optical glasses of the system SiO ↓ 2 ↓ -B ↓ 2 ↓ O ↓ 3 ↓ -TiO ↓ 2 ↓ - ZrO ↓ 2 ↓ -BaO-Nb ↓ 2 ↓ O ↓ 5 ↓ -Li ↓ 2 ↓ O with a low density of s = 3.4 - 3.7 for long-range and near-vision lenses with refractive indices n ↓ D ↓ = 1.79 - 1.81 and dispersions v ↓ D ↓ = 31 - 29 |
| DE2824891B2 (en) | 1978-06-07 | 1980-07-17 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | High refractive ophthalmic lenses of the SiO2 -B2 O3 system - TiO2 -La2 O3 -Earth alkaline oxides with low |
| US4252567A (en) | 1979-09-07 | 1981-02-24 | Nippon Kogaku K.K. | Glasses for eyeglass lenses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2584974A (en) * | 1948-05-13 | 1952-02-12 | Corning Glass Works | Optical glass |
| CH285073A (en) * | 1949-08-08 | 1952-08-31 | Jenaer Glaswerk Schott & Gen | Optical glass. |
| DE812455C (en) * | 1949-09-08 | 1951-08-30 | Jenaer Glaswerk Schott & Gen | Optical glass |
-
0
- DD DD43144D patent/DD43144A/xx unknown
-
1961
- 1961-06-29 DE DE1961L0039386 patent/DE1260712B/en active Pending
-
1962
- 1962-05-28 GB GB20354/62A patent/GB974438A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB974438A (en) | 1964-11-04 |
| DE1260712B (en) | 1968-02-08 |