Authentication system for an item having a holographic display using a holographic record

摘要: In order to improve security for holographic labels which are positioned on a substrate base, bar code symbol is holographically recorded the base such as credit card, label, or container product. A reading apparatus (e.g., reader) directs light at and detects reflected optical information with detector CCD array. The can be stand-alone device or, in case of incorporated into conventional swiper magnetic strip card. non-holographic also provided near display element, e.g., rainbow hologram. adjacent display, placed window within etched embossed display. system authenticating an card illuminated beam directed record was previously produced from signal, known authentic, reference. used reconstruct reference beam. sensor receives reconstructed it then determined if authentic.