Non contact shutter activation system and method
US7845865B2 · kind B2 · utility
4Cited by
24References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2009 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of controlling a plurality of shutter blades activated by a solenoid to move the plurality of shutter blades between an open position and a closed position includes reducing an electrical signal applied to the solenoid while the plurality of shutter blades is in transit between the open position and the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.