APPARATUS AND METHOD FOR OPTICALLY EXAMINING SECURITY DOCUMENTS

An apparatus for optical analysis of value documents (BN) possesses a recording area (14) in which a value document (BN) is located during analysis, and a spectrographic device (16). The latter has a spatially dispersing optical device (29) for at least partly decomposing optical radiation coming fr...

Full description

Saved in:
Bibliographic Details
Main Authors BLOSS MICHAEL, CLARA MARTIN, DECKENBACH WOLFGANG
Format Patent
LanguageEnglish
Published 09.07.2009
Subjects
CHECKING-DEVICES
COLORIMETRY
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
Online AccessGet full text

Cover

More Information
Summary:An apparatus for optical analysis of value documents (BN) possesses a recording area (14) in which a value document (BN) is located during analysis, and a spectrographic device (16). The latter has a spatially dispersing optical device (29) for at least partly decomposing optical radiation coming from the recording area (14) into spectrally separate spectral components propagating in different directions according to the wavelength, a detection device (30) locally resolving in at least one spatial direction for detecting the spectral components, and a collimating and focusing optic (28) for collimating the optical radiation directed from the recording area (14) onto the dispersing device (29) and for focusing at least some of the spectral components formed by means of the dispersing optical device (29) onto the detection device (30).
Bibliography:Application Number: US20070297161