Light polarization control element using stress-optical coefficient glass and method of producing the stress-optical coefficient glass
US6156684A · kind A · utility
7Cited by
13References
31Claims
0Family size
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Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S501/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a light polarization control element using a stress-optical coefficient glass, the stress-optical coefficient glass is substantially composed of a phosphorous acid glass containing 20 to 60 percent by weight of P.sub.2 O.sub.5 and 40 to 73 percent by weight of BaO and PbO.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.