Range imaging system and solid-state imaging device

A range imaging system comprising:

• a signal generation unit configured to generate a light emission signal for instructing light irradiation and an exposure signal for instructing exposure;
• a light source unit including a light source and configured to emit an irradiation light beam in response to the light emission signal;
• an imaging unit including a solid-state imaging device and configured to perform exposure and imaging in response to the exposure signal;
• and
• a calculation unit configured to calculate range information,
• wherein the solid-state imaging device outputs an image capture signal and an imaging signal, and
• the image capture signal is used to detect an object in an irradiation region and the imaging signal is used to calculate a distance to the object in the irradiation region.

A solid-state imaging device that outputs an image capture signal and an imaging signal, the solid-state imaging device being included in a range imaging system that includes:

• a signal generation unit configured to generate a light emission signal for instructing light irradiation and an exposure signal for instructing exposure;
• a light source unit including a light source and configured to emit an irradiation light beam in response to the light emission signal;
• an imaging unit including the solid-state imaging device and configured to perform exposure and imaging in response to the exposure signal;
• and a calculation unit configured to calculate range information,
• wherein the range imaging system irradiates an irradiation region with a plurality of the irradiation light beams divided from source light outputted from the light source, and calculates the range information of an object in the irradiation region using the image capture signal and the imaging signal based on light beams reflected from irradiation points on the object as a result of the light irradiation with the irradiation light beams reaching the irradiation points.