Shutter activation system
US7883280B2 · kind B2 · utility
4Cited by
31References
45Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Oct 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shutter includes at least one shutter blade, a magnet moveably connected to the at least one shutter blade, and a solenoid defining a gap between a first pole and a second pole. The solenoid is configured to controllably draw the magnet into the gap in a first state and to controllably repel the magnet from the gap in a second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.