Coated glass article having an anti-reflective coating and laminated glass thereof
US11124447B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2015 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Mar 19, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/1525
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated glass article includes a glass substrate. A coating is formed over the glass substrate. The coating includes a first inorganic metal oxide layer deposited over a major surface of the glass substrate. The first inorganic metal oxide layer has a refractive index of 1.6 or more. A second inorganic metal oxide layer is deposited over the first inorganic metal oxide layer. The second inorganic metal oxide layer has a refractive index which is less than the refractive index of the first inorganic metal oxide layer. A third inorganic metal oxide layer is deposited over the second inorganic metal oxide layer. The third inorganic metal oxide layer has a refractive index of 2.2 or more and the refractive index of the third inorganic metal oxide layer is greater than the refractive index of the second inorganic metal oxide layer. A fourth inorganic metal oxide layer is deposited over the third inorganic metal oxide layer. The fourth inorganic metal oxide layer has a refractive index which is less than the refractive index of the third inorganic metal oxide layer. The coated glass article exhibits a total visible light reflectance of less than 6.5%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.