Electromagnetic shutter
US8651754B2 · kind B2 · utility
0Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shutter includes a driver ring, a plurality of shutter blades coupled to the drive ring such that movement of the drive ring transitions the plurality of shutter blades between an open position exposing a central aperture of the shutter, and a closed position blocking the central aperture, and a first stop and a second stop movable relative to the first stop. At least one of the first and second stops limits travel of the shutter blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.