Dual action shutter release with thumbwheel brake and methods
US6636695B2 · kind B2 · utility
1Cited by
27References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shutter release-thumbwheel brake for a camera has a thumbwheel, a shutter release, and a sprag. The shutter release is pivotable reative to the thumbwheel between a ready position and a first released position and also between the ready position and a second released position. The released positions are opposed. The sprag is joined to the shutter release and brakes the thumbwheel when the shutter release is in either of the released positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.