Process and apparatus for providing a film with a gradient
US6354109B1 · kind B1 · utility
45Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Oct 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The subject of the invention is a glazing panel comprising a transparent substrate (1) especially one made of glass, provided with at least one functional, conductive and/or low-emissivity, transparent thin film (3). In order to improve the optical and especially the calorimetric appearance of the glazing panel, at least one intermediate film (2) is placed between the substrate (1) and the functional film (3), this at least one intermediate film having a refractive index gradient decreasing through its thickness.The invention also relates to the device intended for manufacturing this type of glazing panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.