Light sensitive semi-conductor element and arrangement

A solid state semi-conductor element including:

• a plurality of line sensors,
• said line sensors each being arranged along a line and each sensor including a plurality of P-N junctions each of which accumulates a charge corresponding to the amount of light incident thereon;
• a plurality of first register means,
• said first register means corresponding one to one to said plurality of line sensors, each register means having a plurality of addresses, each address corresponding one to one with each P-N junction portion of the corresponding line sensor, the charge accumulated on each P-N junction portion being coupled for transfer to the respective address in each register means, and the charge signal transferred to the respective address of each register means being produced as a time-sequential signal from each register means by clock pulses;
• a second register means,
• said means having a plurality of addresses, each address being the same as the number of said first register means, each of the addresses of the second register means corresponding one to one to said first register means, the time-sequential output signals of the first register means being additively storable in the corresponding address of the second register means, and the signal stored in the second register means being able to be read out as a time-sequential signal;
• and
• gate means between each output of said first register means and each address input of the second register means for selectively transferring the signal from said first register means to said second register means.