Multiple glazing with variable diffusion by liquid crystals and method of manufacture thereof
US9891454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Oct 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1341
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multiple glazing with variable scattering by liquid crystals can have first and second flat float glass sheets held on the edge of their internal faces by a joint made of a given joint material. In some examples, the glazing also includes first and second electrodes and a layer of liquid crystals with an average thickness E between 5 and 15 μm. The thickness of each of the first and second glass sheets may be less than or equal to 6.5 mm and each of the internal faces coated with the first and second electrodes may have a dioptric defect score, expressed in millidiopters, of less than or equal to 2+2E/3, where the thickness E of the liquid crystals is in μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.