Transparent substrate provided with a thin-film stack
US6355334B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a transparent substrate, in particular made of glass, provided with a thin-film stack including at least one metallic layer with infrared reflection properties, in particular a low-emission layer, arranged between two dielectric-based coatings.According to the invention, the dielectric-based coating above the metallic layer has the following sequence of layers deposited in this order:a) layer(s) with material(s) with refractive index ni-2 of at most 2.2;b) layer(s) with material(s) with refractive index ni-1 at least 0.3 less than that of the last layer(s) ni;c) last layer(s) with material(s) with refractive index ni substantially equal to ni-2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.