| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring device capable of preventing a resolution power from being reduced, while enlarging a size of the measurable measurement object.SOLUTION: A three-dimensional shape measuring device (measuring device) includes: a projection part for projecting a projection pattern P having a plurality of stripes S arranged side by side; an imaging part for imaging a measurement object; and a distance calculation part for calculating a distance up to the measurement object from the projection pattern imaged by the imaging part using a triangulation method. The projection pattern P includes a plurality of periodic areas Ar formed by arranging two pairs of adjacent stripes S in a second direction D2 without overlapping each other using m×(m-1) pieces of m kinds of strips S coded by luminescence value of an m value level with m as a natural number of 3 or more. The projection pattern P is provided with a boundary line B having a luminescence value of a different level when viewed from a first direction D1, and the boundary line B is linearly formed so as to be inclined to the first direction D1 and the second direction D2 in the projection pattern P.SELECTED DRAWING: Figure 4 |
