2.
    发明专利
    未知

    公开(公告)号:AT371200T

    公开(公告)日:2007-09-15

    申请号:AT04721504

    申请日:2004-03-18

    Abstract: Light-diffracting microstructures are produced by the superimposition of at least two relief structures, wherein the first relief structure is produced mechanically while at least one second relief structure is a photomechanically generated diffraction structure. A process for the production of light-diffracting microstructures which are additive superimpositions comprising a relief structure and at least one diffraction structure, is distinguished by the following steps: a) producing a layer of photoresist on a substrate whose free surface has the relief structure, b) producing an interference pattern with coherent light over the relief structure, c) orienting the relief structure in relation to the interference pattern, d) exposing the relief structure by means of the interference pattern, e) developing the photoresist, wherein material of the photoresist which is changed by the exposure operation is removed and recesses, for example grooves, of the diffraction structure are produced on the relief structure, and f) drying the photoresist.

    Elemento de lámina
    4.
    发明专利

    公开(公告)号:ES2627453T3

    公开(公告)日:2017-07-28

    申请号:ES09702188

    申请日:2009-01-16

    Abstract: Elemento de lámina (1, 4, 7) con una capa de replicación (23, 43), en el que en una primera superficie de la capa de replicación está moldeada una estructura superficial (27) ópticamente activa, en el que la estructura superficial (27) está formada en al menos una primera zona (31, 35, 73) del elemento de lámina por un primer relieve superficial (46) difractivo, que se compone de una multiplicidad de elementos que se siguen unos a otros y que siguen a una primera curva envolvente (28, 47), en el que los elementos se componen respectivamente de una cara de elemento (29, 48) dispuesta esencialmente en paralelo a una cara base y al menos un flanco que conecta con la cara de elemento adyacente o caras de elemento adyacentes, las caras de elemento (29, 48) de elementos adyacentes están espaciadas en una dirección perpendicular al plano base con una primera distancia óptica o un múltiplo de la primera distancia óptica, en el que la primera distancia óptica está entre 150 nm y 800 nm, preferiblemente entre 150 nm y 400 nm y la primera curva envolvente (28, 47) presenta una profundidad óptica de más de 450 nm, en el que la primera curva envolvente (28, 47) presenta una frecuencia espacial entre 100 L/mm y 2000 L/mm y la forma de relieve y la frecuencia espacial de la curva envolvente (28, 47) están seleccionadas de modo que la luz incidente se difracta en una o varias primeras direcciones para la representación de una primera información, cuyo valor de color está determinado además por la primera distancia óptica, que la primera curva envolvente presenta en una primera dirección espacial una primera frecuencia espacial constante y que la primera curva envolvente presenta en una segunda dirección espacial diferente respecto a la primera dirección espacial una segunda frecuencia espacial constante, que se diferencia de la primera frecuencia espacial constante, caracterizado porque en al menos una segunda zona (32, 33, 34, 36, 74), la estructura superficial está formada por un segundo relieve superficial (49), que se diferencia del primer relieve superficial y que representa una segunda información, siendo el segundo elemento de superficie un relieve superficial acromático, en particular una estructura mate, una macroestructura o una rejilla de blaze, y porque la primera y/o la segunda zona (31, 34) están conformadas en forma de motivo en forma de una tercera o cuarta información.

    Elemento de seguridad difractivo con código individualizado

    公开(公告)号:ES2532369T3

    公开(公告)日:2015-03-26

    申请号:ES08015554

    申请日:2008-09-03

    Abstract: Elemento de seguridad para el aumento de la seguridad contra la falsificación de un documento de seguridad, en particular de un carné de identidad, un pasaporte o una tarjeta de identificación, en el que el elemento de seguridad (1, 8, 11) presenta una primera zona (15, 81, 111) en la que al menos por zonas en una capa del elemento de seguridad (1, 8, 11) está moldeado un relieve en superficie difractivo provisto al menos por zonas de una capa de reflexión, el cual muestra una información abierta, visible a simple vista, caracterizado porque la primera zona presenta además un código oculto, no visible a simple vista, legible ópticamente y a máquina, que está formado por una disposición de microzonas (114) dispuestas en la primera zona (15, 81, 111) y que se diferencian ópticamente de la zona circundante, en las que se moldea un relieve en superficie que se diferencia de la zona circundante y/o se quita la capa de reflexión, y/o se genera el código legible a máquina del relieve en superficie moldeado en la capa.

    6.
    发明专利
    未知

    公开(公告)号:AT536596T

    公开(公告)日:2011-12-15

    申请号:AT07703372

    申请日:2007-02-09

    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.

    7.
    发明专利
    未知

    公开(公告)号:AT487196T

    公开(公告)日:2010-11-15

    申请号:AT05750586

    申请日:2005-06-16

    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.

    8.
    发明专利
    未知

    公开(公告)号:AT461805T

    公开(公告)日:2010-04-15

    申请号:AT07764806

    申请日:2007-06-23

    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

    9.
    发明专利
    未知

    公开(公告)号:DE19924750C2

    公开(公告)日:2002-11-14

    申请号:DE19924750

    申请日:1999-04-08

    Abstract: A reading arrangement includes at least one linear detector arrangement which is arranged in parallel relationship above a reading plane and behind an optical imaging element and is oriented on to a reading region of the reading plane, lighting devices and an evaluation unit and serves for machine reading of an information strip with optically encoded information. The light which is scattered or diffracted out of the reading region in which the information strip to be read off by machine is disposed into the optical imaging element is so projected on to the photosensitive faces of the detector arrangement that an image of the reading region is formed. The detector arrangement produces two detector signals and from a comparison of the detector signals, the read information is determined and its authenticity verified.

    10.
    发明专利
    未知

    公开(公告)号:AT454834T

    公开(公告)日:2010-01-15

    申请号:AT01901160

    申请日:2001-01-18

    Abstract: A coin (1) with a metal surface (2, 3) has macroscopic reliefs (5) which serve for visually specifying the value of the coin and as an authenticity feature. Microscopically fine relief structures (8) with a diffraction effect are formed directly in at least one of the surfaces (2, 3). The relief structures (8) are preferably arranged in a recessed relationship and are covered with a lacquer (9). It is also advantageous if at least a part of the relief structures (8) entails an asymmetrical profile shape and/or the grating vectors in a radial orientation. The release structures (8) may also include a machine-readable coding which is recognized by inexpensive optical reading devices for installation in coin testers.The application of the microscopic relief structure (8) to a hard material surface (2, 3) can be effected by the removal of material by means of exposure of the material surface (2, 3) with a laser beam. In that operation the laser beam passes through a mask for determining the form of the relief structures (8) and then an optical image-forming system for reduction purposes. The exposure procedure can also be implemented in accordance with the dual beam interference method. In a further method the microscopic relief structures (8) are etched into the material surface (2, 3).

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