DISTANCE MEASURING APPARATUS

A distance measuring apparatus includes: a light-emitting portion that transmits a plurality of light-emitting pulse signals corresponding to a plurality of pulsed light beams; an object light-receiving portion that transmits a plurality of object pulse signals corresponding to a plurality of object pulsed light beams; a time-to-digital converter that converts a light-emitting timing of the plurality of light-emitting pulse signals and an object light-receiving timing of the plurality of object pulse signals into digital values; and a histogram-generating-and-distance-calculating unit that generates an object histogram that has a horizontal axis representing a difference between the digital value of the object light-receiving timing and the digital value of the light-emitting timing and that calculates a distance to the distance-measurement object, based on a center of gravity of the object histogram, wherein the light-emitting portion emits the plurality of pulsed light beams at a random interval corresponding to a uniform random number.