| 摘要 |
<p>The white balance of a television camera is not lost and kept properly even if the diaphragm is opened to the utmost limit at a dark place. A signal F representing the diaphragm value of the taking lens is inputted from an iris part (2) into a microcomputer (8). The level adjusting values of the R, G, and B signals are set in the microcomputer (8) according to the diaphragm signal F and sent to a white balance correcting circuit (6). The correcting circuit (6) adjusts the levels of the R, G, and B signals to the same value according to the level adjusting values.</p> |
