Interchangeable lens barrel
US4416526A · kind A · utility
15Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | May 27, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An interchangeable lens barrel comprising a lens barrel having a mount which can be attached to a mount of a camera body, focussing lens means rotatably supported on the lens barrel and moving in directions of the optical axis when it rotates, a driving circuit having a driving motor, a driving mechanism connected to the driving motor for rotating the focussing lens means, actuation switch means in the driving circuit, and means on the mount of the lens barrel for receiving a driving signal of the driving motor from the camera body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.