Camera mechanism for setting focus and aperture
US5311239A · kind A · utility
1Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Aug 4, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fast-opening shutter includes an actuating member moveable in a one direction for setting an aperture stop and in the opposite direction for setting focus. The camera shutter is then driven to open against the stop independently of movement of the actuating member. According to more specific features, the actuating member first sets the stop and then focuses a camera optical element. After the exposure is completed, the mechanism is reset by further movement of the actuating member in the second or opposite direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.