DISTANCE-MEASURING APPARATUS AND CONTROL METHOD

A distance-measuring apparatus () generates transmission light by generating a distance measurement signal, and subjecting an optical carrier wave to quadrature modulation on the basis of the generated distance measurement signal. The distance-measuring apparatus () outputs transmission light, and receives reflected light generated by reflecting the transmission light on an object () to be measured. The distance-measuring apparatus () compares the received reflected light with reference light to compute a distance from the distance-measuring apparatus () to the object () to be measured.