Distance-measuring apparatus that outputs precision information

A distance-measuring apparatus comprising:

• a light emission section configured to execute an emission of measuring light, which is radiated to a target space to be measured;
• a plurality of light-sensitive elements configured to store electric charges in response to incident light from the target space to be measured;
• a distance calculation section configured to calculate a distance to an object in a direction of observation, for each pixel, based on amounts of electric charges which are respectively stored in light-sensitive elements at a plurality of timings that have phases respectively delayed by 90 degrees from a timing of the emission of the measuring light, wherein the calculated distances are outputted from the distance-measuring apparatus;
• and
• a precision calculation section configured to calculate a precision of the distance, for each pixel, based on a relation among the amounts of the electric charges stored at the plurality of timings, wherein the calculated precisions are outputted from the distance-measuring apparatus,
• wherein the precision calculation section is configured to calculate the precision based on a difference between (Q1+Q3) and (Q2+Q4), where Q1, Q2, Q3, and Q4 respectively represent the amounts of the electric charges stored at four kinds of timings, and
• wherein the precision calculation section is further configured to adjust, using a light reception intensity of the incident light, a scale of the difference between (Q1+Q3) and (Q2+Q4).