APPARATUS AND METHOD FOR OPTICALLY EXAMINING SECURITY DOCUMENTS

An apparatus for optically examining security documents (BN) has a detection region (14), in which a security document (BN) is located during the examination, and a spectrographic device (16). The latter has a spatially dispersing optical device (29) for at least partially breaking down optical radi...

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Bibliographic Details
Main Authors BLOSS MICHAEL, CLARA MARTIN, DECKENBACH WOLFGANG
Format Patent
LanguageEnglish
Published 16.12.2008
Subjects
CHECKING-DEVICES
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING
PHYSICS
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Summary:An apparatus for optically examining security documents (BN) has a detection region (14), in which a security document (BN) is located during the examination, and a spectrographic device (16). The latter has a spatially dispersing optical device (29) for at least partially breaking down optical radiation coming from the detection region (14) into spectrally separate spectral components which propagate in different directions in accordance with the wavelength, a detection device (30) which is spatially resolving in at least one spatial direction and is intended to detect the spectral components, and collimation and focussing optics (28) for collimating the optical radiation which is directed onto the dispersing device (29) from the detection region (14) and for focussing at least some of the spectral components formed using the dispersing optical device (29) onto the detection device (30). ® KIPO & WIPO 2009
Bibliography:Application Number: KR20087026903