| 摘要 |
An exposure control circuit of the type adapted to produce an exposure termination signal after a time interval related to a time integral of light intensity. The control circuit includes lag compensation means responsive to the light intensity at the time the exposure termination signal is produced, or responsive to a change in light intensity from the beginning of exposure measurement to the time the exposure termination signal is produced, to adjust the time interval to compensate for lag. The control circuit further includes improved lag compensation means responsive to the time rate of change of light intensity at the time that the exposure termination signal is produced for further adjusting the time interval to thereby provide improved lag compensation.
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