Patent ID: 7580117

Claim:
A laser radar apparatus that measures the distance of an object and the direction to the object, the object being located in a measurement range from the laser radar apparatus, comprising: laser beam generating means for generating a laser beam having an axis thereof and emitting the laser beam toward the measurement range; photo detecting means for detecting a reflected laser beam that is reflected back by the object located in the measurement range; a mirror assembly comprising: a through-hole that pierces the mirror assembly being coaxial with the axis of the laser beam emitted from the laser beam generating means and passes the laser beam emitted from the laser beam generating means; and a reflecting surface that is arranged to be at a predetermined angle to the axis of the laser beam emitted from the laser beam generating means and reflects a reflected laser beam reflected back by the object toward the photo detecting means; light deflecting means for deflecting the laser beam emitted from the laser beam generating means toward the measurement range and deflecting the laser beam reflected back by the object located in the measurement range toward the mirror assembly, the light deflecting means having a rotation axis thereof and a mirror surface; and rotation driving means for rotating the light deflecting means around the rotation axis of light deflecting means such that the mirror surface of the light deflecting means is turned to face in the direction of the measurement range.