An identification card provided with secret data contained in the form of a wave guide
hologram recorded in a layer on the card. Light for developing or displaying the hologram is …

An identification card, which has an increased safeguard against counterfeiting, comprises
both a hologram containing information and information which is visible recorded in a single …

An identification card with a holographic security safeguard in the form of a large area
Lippmann-Bragg hologram recorded on a layer or sheet-like carrier disposed on a face of …

A falsification-proof identity card comprises a first transparent layer on the underneath side
of which conventional data is applied by printing technology. The card contains a …

A certification card such as ID card or the like includes a hologram and an optical recording
portion. Hologram is such that an amplitude and a phase of a light wave emitted from an …

An identity card is secured against forgery of the information thereupon and the appearance
thereof by imparting coded information holographically to a photosensitive sheet of the card …

The present invention is concerned with a certification card such as ID card or the like
including hologram and an optical recording portion. Hologram is such that an amplitude …

The hologram card generates a hologram image in response to an illumination light beam.
The hologram card comprises a substrate of a? rst plastic material having a? rst refractive …

A display card is provided on one surface thereof with two images which appear to an
observer to be interacting. One of the images is provided on the card by quality ink printing …

SUMMARY OF THE INVENTION A card embodying the invention includes marks which are
randomly formed within a dedicated region of the surface of the card. The dedicated region …