APPARATUS AND METHOD FOR OPTICAL VERIFICATION OF VALUABLE DOCUMENTS Russian patent published in 2011 - IPC G07D7/12 

FIELD: information technology.

SUBSTANCE: invention uses a spectrographic device (16) for verification, which has a spatially dispersing optical device (29) for at least partial decomposition of optical radiation coming from the detection area into spectrally divided components propagating in different directions in accordance with the wavelength, a detector (30) for detecting spectral components having spatial resolution in at least one direction, and a collimating-focusing optical system (28) for collimating optical radiation directed from the detection area (14) to the dispersing device (29), and for focusing at least some of the spectral components generated by the dispersing optical device (29) on the detector (30).

EFFECT: compact design for verification.

31 cl, 14 dwg