Photographic camera such as a reflex camera
US4349256A · kind A · utility
Inventor
Key dates
| Filing date | Dec 18, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Dec 18, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic camera having an objective incorporating an electrodynamic driving system for the diaphragm system, and also having a selector adjustable for a manual or automatic mode, in which the driving member for the diaphragm blades has a path limiting stop associated therewith which is selectively variable in its basic position by a manually operated diaphragm preselector ring, and which stop, in the manual mode, cooperates with a counterstop pin on the driving member to determine the correspondingly manually preselected position of the diaphragm blades, e.g. following shutter release on a camera with full aperture viewing, but which stop, in the automatic mode, is not utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.