Systems and methods wherein one or more processing operations on an identification document occur after a radiation curable material is applied to a surface of the identification document but before the radiation curable material is fully cured. The one or more processing operations can occur before any curing of the radiation curable material takes place. Alternatively, the one or more processing operations can occur after the radiation curable material has been partially cured, and before the radiation curable material is fully or completely cured.

A security element for manufacturing value documents provides at least one image, formed by a grating structure which has a plurality of trough-shaped microcavities. The microcavities have a structure width from 0.5 μm to 3 μm and an aspect ratio of 0.4 or greater, a metal-containing coating is applied to the grating structure, and in the grating structure the trough-shaped microcavities are separated from each other respectively by strips which are planar and respectively more than 200 nm and maximally 1,200 nm wide.

A security element for manufacturing value documents provides at least one image, formed by a grating structure which has a plurality of trough-shaped microcavities. The microcavities have a structure width from 0.5 μm to 3 μm and an aspect ratio of 0.4 or greater, a metal-containing coating is applied to the grating structure, and in the grating structure the trough-shaped microcavities are separated from each other respectively by strips which are planar and respectively more than 200 nm and maximally 1,200 nm wide.

The invention relates to a transfer film (1), in particular hot-stamping film, the use of a transfer film (1), a film, a security document (2), and a method for producing a transfer film (1). Here, it is provided that the transfer film (1) comprises a transfer layer (20) detachably arranged on a carrier layer (10). The transfer layer (20) further has at least one first color layer (30) and the at least one first color layer (30) comprises at least one binder and at least first pigments, the color appearance of which changes depending on the observation angle.

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.

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.

An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. In some examples, individual ones of the first and second segments can comprise specular reflecting, transparent, diffusely reflecting, and/or diffusely transmissive features. In some examples, individual ones of the first and second segments can comprise transparent and non-transparent regions. Some examples can incorporate more than one region producing an optical effect.

An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. In some examples, individual ones of the first and second segments can comprise specular reflecting, transparent, diffusely reflecting, and/or diffusely transmissive features. In some examples, individual ones of the first and second segments can comprise transparent and non-transparent regions. Some examples can incorporate more than one region producing an optical effect.

A security device (100, 600, 700) includes one or more arrangements of image icons (100a, 110b, 615, 715), one or more arrangements of refractive image icon focusing elements (120, 605, 705), and a sealing layer (127, 600, 1005) which includes an organic resin and nanoparticles. Further, the one or more arrangements of refractive image icon focusing elements is disposed above the one or more arrangements of image icons such that a portion of the one or more arrangements of refractive image icon focusing elements forms a synthetic image of a portion of the one or more arrangements of image icons. Still further, the one or more arrangements of refractive image icon focusing elements contact the sealing layer along a non-planar boundary.

A security device (100, 600, 700) includes one or more arrangements of image icons (100a, 110b, 615, 715), one or more arrangements of refractive image icon focusing elements (120, 605, 705), and a sealing layer (127, 600, 1005) which includes an organic resin and nanoparticles. Further, the one or more arrangements of refractive image icon focusing elements is disposed above the one or more arrangements of image icons such that a portion of the one or more arrangements of refractive image icon focusing elements forms a synthetic image of a portion of the one or more arrangements of image icons. Still further, the one or more arrangements of refractive image icon focusing elements contact the sealing layer along a non-planar boundary.