Polarizing glasses having integral non-polarizing regions
US6524773B1 · kind B1 · utility
9Cited by
21References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C23/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Polarizing glass having localized regions or patterns of non-polarizing glass is disclosed. The glass is formed by use of reducing gas-blocking material, by local thermal heating of the glass, or by an etching technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.