| 摘要 |
PROBLEM TO BE SOLVED: To provide an object detection device that can accurately construct a three-dimensional map of a measuring object and can easily calculate the moving speed of the measuring object.SOLUTION: An object detection device comprises a light source, an irradiation optical system that converts light emitted from the light source into measuring light having a predetermined pattern and emits the measuring light to a reference surface, and a light receiving element that photographs the reference surface; and includes an imaging member that reads an image photographed by the light receiving element for each of a plurality of lines that extend in the horizontal direction and are arranged at a predetermined interval, and a detection part that detects a measuring object that has entered between a pattern forming part and the reference surface on the basis of imaging data by the imaging member. The pattern includes a plurality of divided patterns that correspond to the lines and are arranged along the horizontal direction on the reference surface.SELECTED DRAWING: Figure 3 |
