PURPOSE: To use a whole image pickup element as an acceptable product even if there is a defective photosensitive picture element in a photosensitive picture element row by providing a spare photosensitive picture element row between the original photosensitive picture elements.

CONSTITUTION: A photosensitive picture element row 10 is formed by arranging photosensitive picture elements 11∼1n with a pitch L three times of a picture element size S and spare photosensitive picture elements 31∼3n are provided between the respective picture elements 11∼11n to form a spare photosensitive picture element row 30. The output Vout consists of signals 41 and 43, which are outputted alternately, induced by the photosensitive picture elements 11∼1n and the spare photosensitive picture elements 31∼3n. If a photosensitive picture element 13 in the row 10 is defective, signals from the spare photosensitive picture element row 30 are used. When the spare photosensitive picture element row is used, the attaching position of the solid-state image pickup is shifted.