SECURITIES AUTHENTICATING DEVICE

摘要

FIELD: data management and measuring technology. SUBSTANCE: authenticating device for securities is provided with special optical coded data media (holograms, diffraction gratings, and the like) and functions to analyze topographic element disposed on security for its compliance with standard. Novelty is introduction of normalizing unit and second light source with wavelength other than that of first one which makes it possible to dispense with additional optical elements and their display on hologram. EFFECT: reduced size of device. 3 cl, 2 dwg