| 摘要 |
PROBLEM TO BE SOLVED: To continuously operate a monitor television camera by automatically adjusting the brightness of the picture of a television camera at the time of the occurrence of the failure of lens diaphragm control as for the lens control of a television camera. SOLUTION: A diaphragm is opened at the time of the occurrence of the failure of lens diaphragm control, and a failure signal is transmitted from a lens to a camera side, and shutter control is operated to a photoelectric converting part so that the brightness of a television camera can be automatically adjusted.
|
