Abstract: A multi-layer body having a partially shaped first layer and a diffractive first relief structure shaped in a first region of a replication layer. The first layer is applied to the replication layer in the first region and, in a second region, a photosensitive layer is applied to the first layer or a photosensitive washing mask is applied thereto as a replication layer. The photosensitive layer or the washing mask is exposed through the first layer so that the photosensitive layer or washing mask is exposed differently due to the first relief structure in the first and in the second regions, and the first layer is removed using the exposed photosensitive layer or washing mask as a mask layer in the first region but not in the second region or in the second region but not in the first region.

Abstract: The invention relates to a security document (10) having a carrier substrate (1) and at least one first film element (2) which is fixed to the carrier substrate (1) and shows a first optically variable effect generated by a diffractive first relief structure, wherein the security document (10) furthermore has at least one first printing ink layer (5) which is applied in a region-wise fashion onto the at least one first film element, and at least one second film element (3), and to a method for the production, of the security document (10).

Abstract: Described is a multi-layer body for viewing from the front and rear sides in transillumination mode, wherein the multi-layer body (1) comprises one or more transparent first layers (10) and a second layer (14) with a micro-pattern comprising opaque first partial regions and transparent second partial regions. One of the first layers (10) on its surface remote from the second layer (14) has a surface profile forming an arrangement of a plurality of first micro-lenses (12). The thickness of that first layer (1) or that first layer (1) and arranged between that first layer (1) and the second layer (14) one or more further first layers (1) approximately corresponds to the focal length of the first micro-lenses.

Abstract: The invention concerns a security element (10) for RF identification, and a security document which is provided with such a security element (10). The security element has a flexible film body (104) into which are integrated an electronic circuit which is designed for the storage of security-relevant items of information and an RF antenna which is connected to the electronic circuit and which serves for contact-less communication of the electronic circuit with a test device. Permanently fixed on a surface of the flexible film body (104) is a first optically variable element (102) which at least region-wise covers the region of the flexible film body in which the electronic circuit is arranged, wherein permanently fixed on the other opposite surface of the flexible film body is a second optically variable element.

Abstract: There are described a process for the production of a multi-layer body (100) having a partially shaped first layer (3m) and a multi-layer body produced in that way.

Abstract: A multi-layer body (10i) includes an optically machine-readable identification, wherein the multi-layer body has at least one first plastic material layer with a microscopically fine relief structure shaped in that layer and the optical effect of the microscopically fine relief structure can be altered region-wise for writing in an item of information. First and second regions have different relief structures and form a background pattern (1 through 7) which encodes a first item of information and which is partially altered for writing in an individualized code pattern (1i through 3i) which encodes an individualized second item of information and which overlaps the background pattern. There is also described a method of manufacturing such a multi-layer body and a method of reading the items of information.

Abstract: The invention concerns a security element in the form of a multi-layer film body having a volume hologram layer with two different items of optical information and a process for the production of such a security element.

Abstract: Described is an insect screening sheet having an insect-repellent layer (10) in which the insect-repellent layer (10) has a three-dimensional surface structure which comprises a regularly periodically and/or statistically distributed coarse structure (12g) and/or nanostructure (12n).

Abstract: The invention concerns an optical security element and a process for the production of an optical security element in the form of a multilayer body having a projection element (8) in a first region of the security element for converting light transmitted through the optical security element in the first region by means of diffraction. The projection element (8) has a plurality of first zones (85) in which a first surface of a replication layer (82) has a first surface structure and an opaque metallic layer (85) is arranged on the first surface of the replication layer (82). It further has a plurality of transparent second zones (86) in which the first surface of the replication layer has a second surface structure (87) with an aspect ratio differing from the aspect ratio of the first surface structure and no opaque metallic layer is provided.

Abstract: The invention concerns a security document (1) comprising a transparent window (12) in which a first optical element (15) is arranged and a second transparent window (13) in which a second optical element (16) is arranged. The first transparent window (12) and the second transparent window (13) are arranged on a carrier (11) of the security document (1) in mutually spaced relationship in such a way that the first and the second optical elements (15, 16) can be brought into overlapping relationship with each other. The first optical element (15) has a first transmissive microlens field and the second optical element (16) has a second transmissive microlens field, wherein a first optical effect is produced upon overlap of the second microlens field with the first microlens field.

Abstract: The invention concerns a security element (11) in the form of a multi-layer film body, a security document having such a security element and a process for the production of such a security element. The film body on a carrier film (10) has a release layer (20), a protective lacquer layer (21), a replication lacquer layer (22) with relief structures (25, 26), a metal layer (23) and an adhesive layer (24). A first relief structure (25) has a depth-to-width ratio of >0.5, whereby the metal layer (23) is more transparent in the region of the first relief structure (25). A second relief structure (26) has a low depth-to-width ratio whereby the metal layer (23) is less transparent or is opaque in the region of the second relief structure (26).

Abstract: The invention concerns a film element having a replication layer (43), wherein an optically active surface structure (27) is shaped in a first surface of the replication layer. The surface structure is formed in at least a first region of the film element (35) by a first diffractive surface relief (46) comprising a plurality of successive elements following a first envelope curve (47), wherein the elements respectively comprise an element surface (48) arranged substantially parallel to a base surface and at least one flank adjoining the adjacent element surface or surfaces, the element surfaces (48) of adjacent elements are spaced in a direction perpendicular to the base plane, with a first optical spacing or a plurality of the first optical spacing, wherein the first optical spacing is between 150 nm and 800 nm, preferably between 150 nm and 400 nm.

Abstract: The invention concerns a multilayer body (5) and a process for producing a multilayer body (5). The multilayer body (5) has a transparent first layer (51) in which a multiplicity of cylindrical lenses of a length of more than 2 mm and a width of less than 400 ?m are shaped, which are arranged in accordance with a microlens grid spanning a first co-ordinate system having a co-ordinate axis X1 which is determined by the focal point lines of the cylindrical lenses, and a co-ordinate axis Y2 perpendicular thereto. In a second layer (52) arranged beneath the first layer in a fixed position with respect to the first layer there are a multiplicity of microscopic structures in the form of microimages which are distorted along a longitudinal axis with respect to a transverse axis in accordance with a transformation function and which are arranged in accordance with a microimage grid spanning a second co-ordinate system having a co-ordinate axis X2 and a co-ordinate axis Y2 perpendicular thereto.

Abstract: Described is a transfer film, in particular a hot embossing film, which includes a carrier film (22) and a transfer layer portion having a structure layer (14), the transfer layer portion being arranged on the carrier film (22) and being detachable from the carrier film (22). It is provided that the carrier film (22) has a master relief structure (22m) on its side towards the structure layer (14), the structure layer (14) on its side towards the carrier film (22) has a first relief structure (14o) complementary to the master relief structure (22m) of the carrier film (22), the structure layer (14) on its side remote from the carrier film (22) has a second relief structure (14u) which differs from the first relief structure (14o), and the second relief structure (14u) is covered at least region-wise with a reflection layer (16). There are further provided a process for the production of the transfer film, a multi-layer body formed with the structure layer and a security document having the multi-layer body.

Abstract: There is described a process for the production of a multi-layer body (100) having a partially shaped first layer (3m), wherein it is provided that in the process a diffractive first relief structure (4) with a high depth-to-width ratio of the individual structure elements, in particular with a depth-to-width ratio of >0.3, is shaped in a first region (5) of a replication layer (3) of the multi-layer body (100) and the first layer (3m) is applied to the replication layer (3) in the first region (5) and in a second region (4, 6) in which the relief structure is not shaped in the replication layer (3), with a constant surface density, and the first layer (3m) is partially removed in a manner determined by the first relief structure so that the first layer (3m) is partially removed in the first region (5) or in the second region (4, 6) but not in the second region (4, 6) or in the first region (5) respectively.

Abstract: The invention relates to a film element for protecting an object, in particular a valuable document, a data carrier or a product, wherein the film element has a diffractive relief structure which produces an optically variable effect, wherein the film element has, when viewed perpendicularly to the film plane, a basic shape having a contour, wherein recesses in the form of a pattern are provided in the region of at least 25% of the contour of the basic shape at the circumference of the film element, which recesses form an information item which is superposed on the basic shape and provide the circumference of the film element with notches.

Abstract: Described is a multilayer body for representing microimages provided with gray value gradations or color gradations. The multilayer body has a transparent first layer in which a plurality of microlenses are shaped, and a second layer (61) which is arranged beneath the first layer and has a plurality of microimages. The microlenses are arranged in accordance with a microlens raster. The second layer has a plurality of microimage regions (61b) arranged in accordance with a microimage region raster whose raster width is <300 ?m. Within each microimage region two or more of the microimages (61ma through 61mc) arranged in a microimage raster respectively differ from each other, wherein the raster spacings of the microlens raster and the microimage raster differ from each other by less than 10%. The microimages have regions with a gray value or a color value. Also disclosed is a process for the production of the multilayer body.

Abstract: The present invention relates to an individualized security document such as a passport, savings book or bankbook or the like which has a number of pages which are joined together by means of a fixing or adhesive. Incorporated into the security document by means of the fixing or adhesive is a transfer film which is provided with security elements and which has a base film and a decorative layer arrangement having the security elements. The decorative layer arrangement can be transferred onto the associated page of the security document. At the same time the base film is detached from the decorative layer arrangement and can be cut out of the security document.

Abstract: The invention concerns a security document (7) having a first transparent region (72) in which a first transparent optical element (74) is arranged and a second region (71) in which a second opaque optical element (73) is arranged. The second opaque optical element (73) exhibits a first optical effect. The first region (72) and the second region (71) are arranged in mutually spaced relationship on a carrier (75) of the security document, in such a way that the first and second regions can be brought into mutually overlapping relationship. Upon overlap of the second optical element with the first optical element with a first spacing (26) between the first and second optical elements a second optical effect appears and upon overlap of the second optical element with the first optical element with a second spacing (25) between the first and second optical elements, which is greater than the first spacing (26), a third optical effect (51) which is different from the second optical effect appears.

Abstract: The invention concerns a security element (3?) having a top side and an underside and a process for the production thereof. The security element has a transparent layer (33?) with a non-homogenous refractive index, in which a plurality of Bragg planes are formed by a refractive index variation. The transparent layer (33?) is of a layer thickness of between 5 ?m and 200 ?m and the transparent layer (33?) has a plurality of first zones (41) of a smallest dimension of less than 300 ?m, which are arranged in accordance with a first grid raster in a one-dimensional or two-dimensional succession in mutually adjacent relationship and in which the Bragg planes of the transparent layer are respectively shaped to provide a respective transmissive optical imaging function.