Shutter assembly with rotating magnet
US8333521B2 · kind B2 · utility
12Cited by
27References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Nov 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shutter assembly includes a base having a stop and a central aperture, a permanent magnet rotatably mounted on the base, and a shutter blade directly mounted on the magnet and configured to move between an open position exposing the aperture and a closed position blocking the aperture. The magnet contacts the stop in the open and closed positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.