| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and inexpensive laser displacement measurement device for measuring displacements of a plurality of positions by projecting a plurality of laser beams to reflection measures placed on the plurality of positions in three dimensions without deflecting/scanning by a laser beam.SOLUTION: The laser displacement measurement device comprises a measurement body and a plurality of light reflection measures. The measurement body includes a plurality of laser light sources arranged to emit laser beams in parallel and in the same direction, direction changing means for changing the direction of optical axes of some laser beams except a single beam to a direction intersecting with those of the other beams except the single beam, and unique transmissive means for allowing laser beam transmission in the vicinity of the position where the optical axes of the laser beams intersect each other. The plurality of light reflection measures are disposed to face respective laser beams emitted from the measurement body. A change of a distance to a light reflection measure is measured based on a time interval between an emission time of each laser beam and a reception time of each reflected laser beam. |
