Electronic ink based camera privacy shutter
US11887551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2022 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Sep 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1685
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shutter system includes an electronic device having a camera with a lens. A shutter is supported by the electronic device to block light transmission through the lens in a first state and permit light transmission in a second state. The shutter includes a shutter body containing electrically charged light blocking particles in suspension, a first pair of electrodes positioned to move the electrically charged light blocking particles to achieve the first state in response to a first voltage being applied to the first pair of electrodes, and a second pair of electrodes positioned to move the electrically charged light blocking particles to achieve the second state in response to a second voltage being applied to the second pair of electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.