PROBLEM TO BE SOLVED: To propose an imaging apparatus which allows the range for providing a fine image to be expanded, an authentication apparatus and a light source driving method.SOLUTION: A vein authentication apparatus is provided with: an imaging part having a plurality of imaging portions for imaging reflected light reflected on a vein layer inside a finger and transmitted light transmitted through the vein layer and controlled in such a manner that respective imaging portions pick up images at time points different from each other an irradiation part arranged on the same direction side as the imaging part to irradiate the vein layer with near infrared light an authentication processing part for executing authentication processing on the basis of an image picked up by the imaging part and prestored vein information and an irradiation control part for controlling the irradiation part in such a manner that near infrared light irradiated from the irradiation part is scattered on the back of a vein part corresponding to a certain imaging portion in the imaging time out of the plurality of imaging portions.COPYRIGHT: (C)2009,JPO&INPIT【課題】良質の画像を得るための範囲を拡張し得る撮像装置、認証装置及び光源駆動方法を提案する。【解決手段】指内部の静脈層を反射した反射光及び当該静脈層を透過した透過光を撮像する撮像部分を複数有し、当該各撮像部分が互いに異なる時期に撮像を行うように制御される撮像部と、静脈層に対して、撮像部と同一方向側に配置され、近赤外光を照射する照射部と、撮像部で撮像された画像と、予め記憶された静脈情報とに基づき、認証処理を行う認証処理部と、照射部から照射された近赤外光が、複数の撮像部分のうち撮像時期にある撮像部分に対応する静脈部分の後方で散乱するように、照射部を制御する照射制御部とを設ける。【選択図】図5
