Reflective projection screen comprising a variable light scattering system
US10908490B2 · kind B2 · utility
0Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2013 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Jun 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13756
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a glazing used as projection screen operating in reflection, comprising a front face, onto which the image is projected, and a rear face. The glazing comprises a variable light scattering system comprising a functional film capable of switching between a transparent state and a scattering state and a coating comprising at least one mirror layer, said coating being separated from the front face at least by the functional film.The invention also relates to the use of a glazing as projection screen, to a projection system and to a projection method using said glazing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.