摘要:
The invention relates to a security element for a valuable article, said security element having a flat, transparent body having a front side and a rear side, between which a central plane (M) is located, a first region (I) formed on the body and a second region (II) formed on the body, said regions coding a motif (21, 22), wherein the body has a basic element structure (G) in the first region, said basic element structure imparting different colour impressions from the front side and rear side when the body (1) is viewed in plan view, wherein the body likewise has the basic element structure (G) in the second region (II), but in a mirror-inverted form with respect to the central plane (M), with the result that the first and second regions (I, II) show the motif (21, 22) when both sides are viewed in plan view, but the motif (21, 22) is not detectable in transmitted light.
摘要:
The invention relates to a forgery-proof carrier (1) having at least one metallized layer (2), into which at least one optically variable element (6) is introduced, the at least one optically variable element (6) having a non-individual embossed structure (A), wherein the at least one optically variable element (6) has an individual laser-lithographic structure (B) with a resolution of less than 20 µm.
摘要:
A display member according to this invention includes a plurality of pixels. At least one of the plurality of pixels includes a relief structure formation layer including a first region configured to display a predetermined color on a condition, and a second region different from the first region, a first layer made of a first material, and covering at least the first region, and a second layer made of a second material different from the first material, and covering the first layer. The display member displays an image based on a distribution of the first region on the condition that the display member is observed in the oblique direction, and displays an image based on a distribution of the second region on a condition that the display member is observed with transmitted light.
摘要:
A method and security device, including: a semi-transparent layer exhibiting a first pattern of regions having high optical density and/or raised surface profile relative to layer intervening regions; and a color layer exhibiting a second pattern of elements of at least one color. First and second patterns partially overlap and are configured so the device, appearance varies at different viewing angles. First pattern has color layer following the contours of raised regions. Security device includes: a photosensitive film exhibiting pattern of regions of relatively high and low optical density, the pattern arising from photosensitive film exposure to radiation of a responsive predetermined wavelength from the photosensitive film; and a color layer overlapping the pattern exhibited by photosensitive film, which exhibits increase in optical density upon radiation exposure of a predetermined wavelength and concurrent or subsequent heating. Increases in optical density being due to the bubbles formation within the photosensitive film.
摘要:
Die vorliegende Erfindung betrifft ein Wertdokument-Substrat zur Herstellung von Wertdokumenten (1, 2), insbesondere von Banknoten, mit mindestens einem photochromen Sicherheitsmerkmal (6, 7, 17, 18, 19), wobei das Wertdokument-Substrat eine erste (3) und eine zweite (4) Folienschicht aufweist, von denen mindestens eine transparent oder transluzent ist, und wobei das mindestens eine photochrome Sicherheitsmerkmal zwischen der ersten (3) und der zweiten (4) Folienschicht eingeschlossen ist. Das Wertdokument-Substrat kann außerdem eine Kernschicht (5) zwischen den beiden Folienschichten (3, 4) aufweisen, wobei die Kernschicht (5) bevorzugt eine durchgehende Öffnung (21) aufweist. Das photochrome Sicherheitsmerkmal ist bevorzugt in der durchgehenden Öffnung (21) angeordnet. Die Erfindung betrifft auch Wertdokumente, insbesondere Banknoten, die das Wertdokument-Substrat aufweisen.
摘要:
The invention relates to a method for producing a security paper, wherein M) an endless microlens thread (12) having a top side (30) and an opposite underside (32) is provided, wherein the top side (30) is provided with microlenses (22) at least in partial regions, P) a paper web (50) is produced with a predetermined bridge pattern (18), which has bridge regions (16), in which the microlens thread (12) is embedded within the paper web (50), and which has window regions (14) situated between the bridge regions (16), in which window regions the microlens thread (12) emerges at the surface of the paper web (50) and e) the microlens thread (12) is introduced into the paper web (50) and in the process is connected to the paper web (50) on the underside (32) of said thread and, in the bridge regions (16), also on the top side (30) of said thread, wherein the paper web (50) together with the introduced microlens thread (12) forms the security paper.
摘要:
Laser-personalizable security articles include a multi-layer security document and an optically transparent processing tape. The multi-layer security document includes an optically transparent cover layer, a composite image and an imagable layer adjacent to the cover layer. The first surface of the cover layer is at least partially a microstructured surface, where the microstructured surface forms microlenses or a lenticular surface. The composite image is made by a collection of complete or partial images viewed through the microstructured surface of the cover layer. The composite image is located on or within the second surface of the cover layer. The imagable layer is a laser imagable layer. The optically transparent processing tape sufficiently wets out on the microstructured surface to render the microstructured surface invisible to a writing laser.