| 摘要 |
An electronic camera includes an optical device having a diaphragm for focusing an optical image of subject, an image sensor for sensing the focused optical image and for converting the sensed image into electric signals, a luminous energy level detector for detecting a level of luminous energy based on the electric signals, an exposure condition determining device for determining exposure-time data and diaphragm control data based on the level of luminous energy, an exposure-time control device for a time that the optical image is exposed to the image sensor based on the exposure-time data, a diaphragm controller for controlling the diaphragm based on the diaphragm control data, and a processor for processing the electric signals produced by the image sensor at proper exposure conditions so as to produce a video signal.
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