A soundproofing plate comprising a substrate having a substrate having at least one through hole formed therein; and a soundproofing device mounted on the through hole of the substrate. Each sliding rail comprises an outer rail and an inner rail slidably attached to the outer rail. In a toner supplying roller including a polyurethane foam layer that is formed on the mandrel periphery using a polyurethane material including a polyol and a polyisocyanate, the polyol and the polyisocyanate have an amine number of 3 mg KOHg or more and 15 mg KOHg or less in total. An image F2 at time T2 when the subsequent frame is started is captured into the image storing section and the feature point extracting section. A load is operatively connected to the stator, such that a portion of the load in contact with the stator is driven to move linearly through a frictional force between the load and the stator, due to the elliptical motion at the tip of the wing. Three-dimensional coordinates of objects contained in the images are determined by a photogrammetric analysis of the images based on the measured distance.