Non-lead optical glass and optical fiber
US7524781B2 · kind B2 · utility
7Cited by
9References
5Claims
0Family size
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Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Apr 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A non-lead optical glass consisting essentially of, as represented by mol %, from 45 to 75% of Bi2O3, from 12 to 45% of B2O3, from 1 to 20% of Ga2O3, from 1 to 20% of In2O3, from 0 to 20% of ZnO, from 0 to 15% of BaO, from 0 to 15% of SiO2+Al2O3+GeO2, from 0 to 15% of MgO+CaO+SrO, from 0 to 10% of SnO2+TeO2+TiO2+ZrO2+Ta2O3+Y2O3+WO3 and from 0 to 5% of CeO2, wherein Ga2O3+In2O3+ZnO≧5%. An optical fiber comprising the above non-lead optical glass as a core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.