Video camera with phototropic glass regulating amt. of light reaching photosensitive layer

摘要

The quantity of light incident on the photosensitive layer (3) is regulated and can be measured by a sensor element (2). A single or a pair of phototropic glasses (6,8) can be used and located in a part of the incident beam path between the field of view (5) and the image plane (7) of the taking lens (1).