Distance measurement head and multi-target distance measurement system including the same

A multi-target distance measurement system comprising:

• one or more optical dividers configured to divide a laser pulse into a plurality of optical paths;
• and
• measurement heads optically connected one by one to an end of each of the plurality of optical paths,
• wherein each of the measurement heads comprises:
• a reflection surface configured to reflect a part of a laser pulse transmitted from a laser light source unit toward the laser light source unit and generate a reference pulse;
• a beam splitter configured to distribute a measurement pulse received from a measurement target;
• and
• a position sensor configured to receive the measurement pulse distributed by the beam splitter,
• wherein the measurement pulse is the laser pulse reflected from the measurement target, and
• a distance between the reflection surface and the measurement target is measured based on a time difference between time at which the measurement pulse passing through the beam splitter reaches the laser light source unit and time at which the reference pulse reaches the laser light source unit, and
• wherein lengths of the optical paths from the one or more optical dividers to the measurement heads are configured to be different from each other.