Lens barrel
US5489958A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Oct 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens barrel comprises a barrier provided at a front aperture of a photographing lens, a barrier driving mechanism for opening and closing the barrier, a lens driving mechanism for moving at least one lens group in an optical-axis direction, a driving device for operating the lens driving mechanism and the barrier driving mechanism, and a driving force switching device for transmitting driving force of the driving device to a lens driving mechanism at a state capable of photographing and for transmitting driving force of the driving device to a barrier driving mechanism at a state incapable of photographing linked with the movement of the photographing lens from a state capable of photographing to a state incapable of photographing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.