System and corresponding optical methods are computerized and projected stripes, measuring three-dimensional objects using a phase shift method

摘要

Improving the [challenge] PSM technology. Respect to the optical computerized method to project a pattern on the object, measuring the three-dimensional as a relief to the outer surface of the object using the phase shift method, [SOLUTION] The present invention, projection axis 4 to the object of the stripe are used and the origin of the projection axis is regarded as illuminated points positioned substantially in each of the four vertices of the tetrahedron of fact, the object is positioned substantially in the center of the tetrahedron above, shooting 4 made from the shooting point 4 is located substantially along the imaging axis of Tsu is the midline of one of the trihedron of four is formed by the triplet projection axis four each of the imaging axis, shooting points four , at each shot point, located at a distance from the object, such as including at least a portion of each of the three surfaces of an object can be illuminated by the illumination points three triplet projection axis is the image, the middle line of the triplet projection axis set the imaging axis of the imaging point, a set of images of each of the six surfaces which is defined and illuminated by the lighting point six pairs are taken to the computer device. Relates to a system corresponding to it also invention. [Selection] Figure Figure 1