ILLUMINATION DEVICE AND PAPER SHEET IDENTIFICATION DEVICE

PROBLEM TO BE SOLVED: To minimize a light source unit for irradiating a body to be illuminated with line-like light.SOLUTION: A light source unit 20 for irradiating a document P with the line-like light includes light sources 31 and 32 which emit light, a light guide body 25 which is formed like a rod and guides the light from the light sources 31 and 32 to the document P, a frame 21 which accommodates the light sources 31 and 32 and the light guide body 25, and a cover member 41 which transmits the light with which the document P is irradiated from the light guide body 25 and covers the frame 21 from the side of the document P. A conduction part 42 for conducting the light sources 31 and 32 is provided on the surface on the side of the light guide body 25 of the cover member 41. 【課題】被照明体にライン状の光を照射する光源ユニットの小型化を図ることを目的とする。【解決手段】原稿Ｐにライン状の光を照射する光源ユニット２０であって、光を発する光源３１、３２と、棒状に形成され光源３１、３２からの光を原稿Ｐへと導く導光体２５と、光源３１、３２および導光体２５を収容するフレーム２１と、導光体２５から原稿Ｐへ照射される光を透過させ、フレーム２１を原稿Ｐ側から覆うカバー部材４１と、を有し、カバー部材４１の導光体２５側の面に光源３１、３２を導通させるための導通部４２を設けたことを特徴とする。【選択図】図１