| 摘要 |
An apparatus and corresponding method for examining document having at least one excitation device for exciting luminescence light in or on a document to be examined and at least two detector units for detecting at least part of the luminescence light emitted by the document. To increase the reliability of examination of the spectral characteristic of the luminescence light, it is provided that the detector units are disposed one behind the other with respect to the luminescence light emitted by the document. This causes the luminescence light to successively hit the detector units and be detected thereby. The apparatus and method permit any parallactic errors, which occur particularly with a laterally shifted arrangement of detector units, to be greatly reduced so that the detector units can detect the luminescence light emitted by a common partial spatial area of the document.
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