Imaging device

An imaging device comprising:

• a first filter that has a transmission band transmitting a light of a visible region and an infrared region;
• a first substrate that is arranged below the first filter, and has a first photoelectric conversion element which outputs a first signal charge according to an amount of exposure of a light passing through the first filter;
• a second substrate that has a second photoelectric conversion element outputting a second signal charge according to an amount of exposure of a light, having sensitivity in at least the infrared region, which passes through the first substrate, and is arranged on a surface on an opposite side to a light-receiving surface of the first substrate;
• and
• a signal read-out circuit that reads out the first signal charge as a first electrical signal, and reads out the second signal charge as a second electrical signal.