A solid state imaging apparatus comprises a semiconductor substrate,
photoelectric conversion elements, a vertical electric charge
transferring device, a horizontal electric charge transferring device
that temporarily stores the signal electric charges transferred from the
vertical electric charge transferring device and transfers the signal
electric charges to a horizontal direction in a sequential order, wherein
the horizontal electric charge transferring device comprises at least two
lines of horizontal shift registers and an electrode structure with which
one-- shift register can transfer the signal electric charges to a
direction that is 180 degrees different from another shift register and
also can transfer the signal electric charges to a same direction as the
another shift register continuously with the other shift register by
changing driving of at least one of the shift registers, and output
detecting devices.