Glazing unit comprising a variable light scattering system and a pair of absorbing elements
US10539822B2 · kind B2 · utility
0Cited by
18References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/546
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a glazing unit comprising a substrate coated with a variable light scattering system switching between a transparent state and a translucent state comprising a scattering layer able to scatter the incident light along scattering angles greater than the critical total internal reflection angle at the interface between the substrate and the air and at least one pair of elements absorbing visible light separated from one another at least by the scattering layer. The invention also relates to the use of said glazing unit as a projection or back-projection screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.