Calcium-containing high-index phosphate glasses
US11479499B2 · kind B2 · utility
0Cited by
27References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2022 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jan 14, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/085
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Glass compositions include phosphorus oxide (P2O5), niobia (Nb2O5), titania (TiO2), potassium oxide (K2O) and calcium oxide (CaO) as essential components and may optionally include barium oxide (BaO), sodium oxide (Na2O), lithium oxide (Li2O), tungsten oxide (WO3), bismuth oxide (Bi2O3), tantalum oxide (Ta2O5), silica (SiO2) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.