| 摘要 |
A three-dimensional imaging device (10) comprises a plurality of imaging devices (11a, 11b) each equipped with imaging elements for converting incident light into an electric signal, and a light emitting device (14) for emitting a laser beam, in which a laser beam (B) from the light emitting device forms a light emission point (A) by plasma in the space in front of the imaging device, and the difference in positional relation with regard to the plurality of imaging devices is calibrated based on the emission point (A)as a reference point. Consequently, calibration can be always performed at a required timing regardless of the conditions of an object, and can be performed while keeping a constant precision. |
