| 摘要 |
The invention relates to an exposure meter for mirror-reflex cameras, having a flat, transparent, plane-parallel outwardly reflecting plate behind the reflecting mirror, and at least two photoreceivers. The aim of the invention is the optional performance of exposure-time measurements which are integral to the greatest possible extent and of partial exposure-time measurements, without the use of mechanical diaphragms. This is achieved by configuring an outwardly reflecting plate directly behind the reflecting mirror to have reflecting surfaces which are such as to represent selected image zones and whose light can be guided to photoreceivers located on the broad side of the outwardly reflecting plate. The signals of the receivers can be evaluated using a single channel or multiple channels. <IMAGE> |
