| 摘要 |
<p>An object selecting device includes a container including an inner bottom part and configured to store liquid, a plate having a top surface and a bottom surface and configured to support a selection object by being immersed into the liquid stored in the container, and a holding means configured to hold the plate in a state where the bottom surface of the plate and the inner bottom part of the container are separated. The plate includes a through hole at a support position. The through hole includes a tapered portion configured to allow the selection object to precipitate along a direction of gravity and support the selection object in contact with the inner wall surface of the through hole. An opening area at the upper end of the tapered portion is larger than that at the lower end of the tapered portion. Only the selection object can be supported out of the collection of objects having different shapes, and non-objects can be allowed to precipitate to the inner bottom part of the container. Further, in the case of extracting the supported selection object, the non-objects precipitated on the inner bottom part are not erroneously extracted since the plate is separated from the inner bottom part of the container by the holder.</p> |
