To raise the resolution of the luminance component of a two-dimensional color image pickup element.

In this image pickup element, first photosensitive elements Y for mainly obtaining the luminance component and second and third photosensitive elements C1 and C2 for mainly obtaining color phase components are checker arrayed. Then, the photosensitive elements C1 and C2 are arranged between oblique box-like arrays composed of the eight photosensitive elements Y arranged along an oblique direction and the combinations of the photosensitive elements Y, C1 and C2 are radially and repeatedly arrayed. At the time of viewing the array of the photosensitive elements Y, C1 and C2 in a horizontal direction and a vertical direction, since the photosensitive elements Y are present inside the respective arrays positioned by the interval of picture element pitchers δx and δy, the horizontal resolution and vertical resolution of the luminance component are raised without damaging a limit horizontal resolution and a limit vertical resolution in a light receiving area 1.