Mechanism for indicating and setting the parameters of exposure aperture and/or exposure time for photographic cameras
US4514066A · kind A · utility
Inventors
Key dates
| Filing date | Mar 17, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Mar 17, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photographic exposure parameter indicating and setting accessory mechanism for a lens shutter housing, e.g. of a professional or studio camera, having a manually operatable exposure parameter setting device, e.g. an exposure time setting device, which in one embodiment contemplates a carrier directly mountable, e.g. removably, in simple manner on the housing, a guide plate mounted, e.g. releasably, on the carrier and a pointer lever pivotally and relatively movably guidedly mounted on the plate and having a pointer for pointing to a setting scale, e.g. time scale, on the plate and a connecting portion for articulated, e.g. removable, connection of the lever to the, e.g. time setting, device, and which in another embodiment further contemplates a slide slidably guided on and movable relative to the carrier and having a setting scale, e.g. diaphragm aperture scale, to which a pointer on the carrier points and a connecting portion for articulated, e.g. removable, connection of the slide to another such device, e.g. an exposure diaphragm aperture setting device, also provided on the housing, whereby upon mounting the carrier on the housing and connecting the lever connecting portion to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.