BEAN SORTER

To solve such a conventional problem that it was required that abnormality such as color change and so on could be detected at any position on an external surface of an object to be sorted.SOLUTION: A bean sorter comprises: transfer means 14 which transfers an object h to be sorted so that the object h to be sorted passes through a measurement object region KT in such an attitude that a long direction thereof is along a transfer direction; illumination means 15 which illuminates the measurement object region KT; light reception means 16 which receives light reflected by the object h to be sorted positioned in the measurement object region KT; quality determination means which determines quality of the object h to be sorted on the basis of light reception information of the light reception means 16; and separation means 18 which separates the object h to be sorted into a normal object recovery part and a defective object recovery part. The illumination means 15 comprises a plurality of illumination devices 27A, 27B, 28A, 28B which radiate light to the object h to be sorted positioned in the measurement object region KT from mutually different positions along the transfer direction.SELECTED DRAWING: Figure 3 【課題】被選別物の外表面のどの位置であっても変色等の異常を検出できるようにすることが要望されていた。【解決手段】被選別物ｈを長尺方向が移送方向に沿う姿勢で計測対象領域ＫＴを通過させるように被選別物ｈを移送する移送手段１４と、計測対象領域ＫＴを照明する照明手段１５と、計測対象領域ＫＴに位置する被選別物ｈにて反射した光を受光する受光手段１６と、受光手段１６の受光情報に基づいて被選別物ｈの良否を判別する良否判別手段と、被選別物ｈを正常物回収部と不良物回収部とに振り分ける分離手段１８と、が備えられ、照明手段１５は、移送方向に沿って互いに異なる位置から計測対象領域ＫＴに位置する被選別物ｈに対して光を照射する複数の照明装置２７Ａ，２７Ｂ，２８Ａ，２８Ｂを備えている。【選択図】図３