9 Security devices, security features and optically variable devices used in bank notes and other security documents, namely, micro lenses in the form of optical lenses for use as security and authentication purposes, diffractive optical elements, diffraction gratings and other surface based diffractive structures, namely, non-printed holograms, optical interference filters for filtering light, holographic optical filters for filtering light, holographic embossings, holographic optical thin security films, multi layer holographic films, iridescent holographic security layers, retro reflective holographic layers, liquid crystal optical filters for filtering light and polarization filters for filtering light; currency authentication apparatus and equipment, namely, computer hardware containing programming for authentication of currency; detectors and sensing apparatus, namely, electronic sensors and detectors containing programming for authentication of currency; apparatus and equipment for detecting security documents, security films and inks, namely, optical readers and optical scanners; optical detection apparatus, namely, optical readers and optical scanners that contain programming for authentication of currency; magnetic encoded cards and magnetic encoded films for the manufacture of security documents, namely, passports, identity cards, driver licenses, travel documents, airline tickets, train tickets, entrance cards and tickets; magnetically encoded smart cards containing programming used for reading, writing, controlling, exchanging and modification of data for use in the field of payment, finance, access, control, transport, ticketing, electronic identification, retail and gift card and mobile communication fields; magnetically encoded identification cards; magnetically encoded charge cards; magnetically encoded bank cards; magnetically encoded credit cards; magnetically encoded debit cards; magnetically encoded payment cards; smart card readers; computer hardware for use in currency authentication apparatus and equipment; computer hardware and software for implementing encryption, authentication and security features for encoded cards and films