Optical device including switchable diffuser
US10429037B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2015 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jan 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1334
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Optical devices are disclosed. In particular, optical devices including a collimated light source (140), at switchable diffuser (110), and at least one light deflecting element (120, 130) are disclosed. The electrically switchable diffuser (110), in combination with the at least light deflecting element (120, 130) can provide significant changes in the overall distribution of light at the electrically switchable diffuser (110) is switched between two or more states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.