PROBLEM TO BE SOLVED: To provide an imaging device capable of improving reliability.SOLUTION: The imaging device includes: a radiating means for radiating characteristic light having a property to be absorbed in a blood vessel to a finger side surface between a finger pad facing an opening where a finger should be disposed and the back of the finger on the opposite side a light guiding means for guiding characteristic light entering through the opening from the finger pad by being scattered inside the finger to a solid imaging element and a signal processing means for conducting a process for setting luminance of a center pixel in a range of attention to a statistical value of the luminance of the pixels in the range of attention for an image of an image signal output from the solid imaging element with one line or multiple lines, as a unit, perpendicular to a line in a direction corresponding to a radiating direction of the characteristic light radiated to the finger side surface from the radiating means.COPYRIGHT: (C)2011,JPO&INPIT【課題】信頼性を向上し得る撮像装置を提案する。【解決手段】指を配すべき開口に対向される指腹部分とその逆側の指背部分との間である指側面に対して、血管に吸収される性質を有する特性光を照射する照射手段と、指の内方で散乱し指腹部分から開口を介して入射される特性光を固体撮像素子に導く導光手段と、固体撮像素子から出力される画像信号の画像に対し、注目範囲における中心画素の輝度をその注目範囲における画素の輝度の統計値とする処理を、照射手段から指側面に対して照射される特性光の照射方向に対応する方向のラインと直交する1又は複数のラインを単位として施す信号処理手段とを有する。【選択図】図8
