| 摘要 |
A high sensitivity light control system for providing relatively constant effective values of light intensity to photographic devices operating in very low levels of light intensity is provided by using the signal derived by integrating, amplifying, and smoothing the output of a periodically readout storage light detector tube to control a mechanical aperture, scanning frame time, or light gain in a variable gain image intensifier stage. Light intensities from the scene photographically viewed are detected and integrated temporally in the storage light detector tube, integrating the output of the storage light detector provides spatial integration of the temporally integrated light intensity over the scene viewed.
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