A laser radar device comprising: a light source for outputting laser light; a scanner for causing the laser light to scan, characterized in that the laser radar device further comprises: a first optical system (71, 201) for receiving the laser light caused to scan by the scanner and incident on the first optical system (71, 201), and emitting the incident laser light in such a manner that a horizontal scan angle dynamic range (a iu) of the incident laser light is different from a horizontal scan angle dynamic range (a ou) of the laser light to be emitted; and a second optical system (72, 202) for receiving the laser light caused to scan by the scanner and incident on the second optical system (72, 202), and emitting the incident laser light, wherein an incident range of the incident laser light of the second optical system (72. 202) in the horizontal direction is the same as an incident range of the first optical system (71, 201) in the horizontal direction, and an emission range of the second optical system (72, 202) of the incident laser light is different from an emission range of the first optical system (71, 201), wherein the first optical system (71, 201) emits the incident laser light in such a manner that a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to an optical axis in a vertical direction, and wherein the incident range of the second optical system (72, 202) in the vertical direction and the incident range of the first optical system (71, 201) in the vertical direction are symmetric with respect to an optical axis, and a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to the optical axis in the vertical direction. a light source for outputting laser light; a scanner for causing the laser light to scan, characterized in that the laser radar device further comprises: a first optical system (71, 201) for receiving the laser light caused to scan by the scanner and incident on the first optical system (71, 201), and emitting the incident laser light in such a manner that a horizontal scan angle dynamic range (a iu) of the incident laser light is different from a horizontal scan angle dynamic range (a ou) of the laser light to be emitted; and a second optical system (72, 202) for receiving the laser light caused to scan by the scanner and incident on the second optical system (72, 202), and emitting the incident laser light, wherein an incident range of the incident laser light of the second optical system (72. 202) in the horizontal direction is the same as an incident range of the first optical system (71, 201) in the horizontal direction, and an emission range of the second optical system (72, 202) of the incident laser light is different from an emission range of the first optical system (71, 201), wherein the first optical system (71, 201) emits the incident laser light in such a manner that a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to an optical axis in a vertical direction, and wherein the incident range of the second optical system (72, 202) in the vertical direction and the incident range of the first optical system (71, 201) in the vertical direction are symmetric with respect to an optical axis, and a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to the optical axis in the vertical direction. a first optical system (71, 201) for receiving the laser light caused to scan by the scanner and incident on the first optical system (71, 201), and emitting the incident laser light in such a manner that a horizontal scan angle dynamic range (a iu) of the incident laser light is different from a horizontal scan angle dynamic range (a ou) of the laser light to be emitted; and a second optical system (72, 202) for receiving the laser light caused to scan by the scanner and incident on the second optical system (72, 202), and emitting the incident laser light, wherein an incident range of the incident laser light of the second optical system (72. 202) in the horizontal direction is the same as an incident range of the first optical system (71, 201) in the horizontal direction, and an emission range of the second optical system (72, 202) of the incident laser light is different from an emission range of the first optical system (71, 201), wherein the first optical system (71, 201) emits the incident laser light in such a manner that a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to an optical axis in a vertical direction, and wherein the incident range of the second optical system (72, 202) in the vertical direction and the incident range of the first optical system (71, 201) in the vertical direction are symmetric with respect to an optical axis, and a sign of a vertical component of the incident laser light is different from a sign of a vertical component of the laser light to be emitted with respect to the optical axis in the vertical direction.