A heated indenter is provided for indenting a personalized document to create a security impression thereon. The personalized document includes but is not limited to, identification cards, driver's licenses, credit and debit cards, and the like. The security impression can provide a visible or tactile security feature that can be recognized by one with little or no training. The security impression causes a laminate layer of the document to tear or disfigure when attempting to remove the laminate layer from a substrate of the document.

In order to increase the security of value or security documents 100, a multi-luminescent security element 400 is provided which contains at least one first luminescence means 510 and at least one second luminescence means 520. The first luminescence means 510 can be excited under first excitation conditions Sp-1 for the purpose of luminescence, and the second luminescence means 520 can be excited under second excitation conditions Sp-2 for the purpose of luminescence, said second excitation conditions Sp-2 differing from the first excitation conditions Sp-1. The multi-luminescent security element 400 is additionally equipped with at least one absorber means 600 which prevents an excitation of the at least one first luminescence means 510 under the second excitation conditions Sp-2 for the purpose of luminescence.

In order to increase the security of value or security documents 100, a multi-luminescent security element 400 is provided which contains at least one first luminescence means 510 and at least one second luminescence means 520. The first luminescence means 510 can be excited under first excitation conditions Sp-1 for the purpose of luminescence, and the second luminescence means 520 can be excited under second excitation conditions Sp-2 for the purpose of luminescence, said second excitation conditions Sp-2 differing from the first excitation conditions Sp-1. The multi-luminescent security element 400 is additionally equipped with at least one absorber means 600 which prevents an excitation of the at least one first luminescence means 510 under the second excitation conditions Sp-2 for the purpose of luminescence.

A visual security feature is provided that is disposed on a target. The visual security feature includes two substantially transparent layers. At least one of the two substantially transparent layers is present in an image-wise pattern.

A visual security feature is provided that is disposed on a target. The visual security feature includes two substantially transparent layers. At least one of the two substantially transparent layers is present in an image-wise pattern.

An identification device includes: an observation object shape frame display configured to display, on a display screen, an observation object shape image indicating a shape of an anti-counterfeit medium observed at an observation angle, and display image data that is an image of an imaging object of an image-capturing device, the anti-counterfeit medium being designed such that an observed pattern of light varies as the observation angle varies; a shape similarity calculator configured to calculate a shape similarity between the observation object shape image and an outer shape of the anti-counterfeit medium; and an imaging determinator configured to perform imaging determination as to whether the observation angle and an observation position of the image-capturing device are correct based on whether the shape similarity is equal to or greater than a shape similarity threshold.

An identification device includes: an observation object shape frame display configured to display, on a display screen, an observation object shape image indicating a shape of an anti-counterfeit medium observed at an observation angle, and display image data that is an image of an imaging object of an image-capturing device, the anti-counterfeit medium being designed such that an observed pattern of light varies as the observation angle varies; a shape similarity calculator configured to calculate a shape similarity between the observation object shape image and an outer shape of the anti-counterfeit medium; and an imaging determinator configured to perform imaging determination as to whether the observation angle and an observation position of the image-capturing device are correct based on whether the shape similarity is equal to or greater than a shape similarity threshold.

The carrier for representing a monetary value as a means of payment comprises a substrate, a control unit mounted to the substrate, a value store for storing a carrier value of the carrier, a display device for displaying a status of the carrier and an interface circuit for electronic communication of an external device with the control unit. Further, an authentication device is provide for verifying the authenticity of the status shown by the display device. The authentication device e.g. comprises an optically variable device, a diffractive structure, an at least partially transparent structure, a grating, a Fresnel-lens, an optical polarizer, or a periodic structure. It is e.g. overlaid with or can be brought to overlay with the display device. It makes tampering with the display device more difficult.

The carrier for representing a monetary value as a means of payment comprises a substrate, a control unit mounted to the substrate, a value store for storing a carrier value of the carrier, a display device for displaying a status of the carrier and an interface circuit for electronic communication of an external device with the control unit. Further, an authentication device is provide for verifying the authenticity of the status shown by the display device. The authentication device e.g. comprises an optically variable device, a diffractive structure, an at least partially transparent structure, a grating, a Fresnel-lens, an optical polarizer, or a periodic structure. It is e.g. overlaid with or can be brought to overlay with the display device. It makes tampering with the display device more difficult.

The invention relates to an absorbent medium for improving the overprintability, in particular by inkjet printing, of a security element, in particular an optically variable security element, comprising a binder, at least one pigment and an in particular aqueous solvent. The invention furthermore relates to a transfer film with an absorbent layer made of such an absorbent medium as well as a method for personalizing a security element using such a transfer film.