| 摘要 |
A solid state color image pickup apparatus easily converts an output from a solid state image sensor to a television signal with a simple structure, thereby facilitating the reduction of the size, weight, power consumption and cost of the image pickup apparatus. A color filter, which has a plurality of color filter elements respectively facing light receiving elements of a solid state image sensor, modulates optical information so that an image pickup signal output from the solid state image sensor is composed of a luminance signal component and modulated color signal components, which are obtained by modulating, with two color-difference signals, two carrier waves having phases different from each other by pi /2, the phases of the two carrier waves are different by pi every horizontal scanning period in each field of a television signal, and the luminance signal component has a spectral characteristic substantially the same as that of a luminance signal of a standard television system, the first color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a red signal of the standard television system, and the second color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a blue signal of the standard television system.
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