Antimony oxide glass with optical activity
US6503860B1 · kind B1 · utility
15Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 4, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C13/048
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
According to one aspect of the present invention an optically active glass contains Sb2O3, up to about 4 mole % of an oxide of a rare earth element, and 0-20 mole % of a metal halide selected from the group consisting of a metal fluoride, a metal bromide, a metal chloride, and mixtures thereof, wherein this metal is a trivalent metal, a divalent metal, a monovalent metal, and mixtures thereof. In addition, any of the glass compositions described herein may contain up to 15 mole % B2O3 substituted for an equivalent amount of Sb2O3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.