Image pickup device

An image pickup device capable of obtaining a color multiplexed signal comprising:

• an image pickup tube provided with a striped filter which is a repetition of a plurality of stripes, and a pair of collimation forming electrodes which form a collimation;
• voltage applying means for respectively applying predetermined voltages for forming said collimation to said pair of collimation forming electrodes of said image pickup tube, said collimation being formed responsive to a voltage ratio of said voltages applied to each of said collimation forming electrodes;
• and
• correction voltage applying means for varying the collimation forming voltage ratio by applying a correction voltage to one of said pair of collimation forming electrodes, said correction voltage having a waveform such that the signal level ratios between the signals of the stripe parts of the striped filter in the color multiplexed signal obtained from said image pickup tube, are substantially constant.