| 摘要 |
The invention relates to an apparatus (1) for examining documents (2), particularly banknotes. Said apparatus (1) comprises at least one light source (3), at least one spectral device (8), and at least two detecting devices (9, 10, 11, 24). The document is irradiated by means of the light source (3), whereupon the light emitted and/or reflected and/or transmitted by the document is divided into spectral components with the aid of the spectral device (8). The spectral components are separately detected by the detecting devices. The light (4) emitted by the light source (3) can be divided into spectral components also before impinging the document (2). The inventive apparatus (1) is embodied so as to individually weight the spectral components that are to be detected by the detecting devices (9, 10, 11, 24). |
