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公开(公告)号：US10427368B2
公开(公告)日：2019-10-01
申请号：US15592918
申请日：2017-05-11
申请人： OVD Kinegram AG
摘要： The invention relates to a multi-layer body (10) and a process for the production thereof. The multi-layer body has a first layer (23) with a first surface (231) and a second surface (232) opposite the first surface (231). The first surface (231) of the first layer (23) is defined by a base plane spanned by coordinate axes x and y, wherein a large number of facet faces (50) are molded into the second surface (232) of the first layer (23) in a first area (31). Each of the facet faces (50) is determined by one or more of the parameters F, S, H, P, Ax, Ay and Az, wherein the parameters of the facet faces (50) arranged in the first area (31) are varied pseudorandomly in the first area (31) within a variation range predefined in each case for the first area of surface and wherein a reflective second layer (24) is applied to each of the facet faces.
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公开(公告)号：US20180134065A1
公开(公告)日：2018-05-17
申请号：US15527569
申请日：2015-12-02
发明人： Wayne Robert Tompkin , Harald Walter , Rainer Stahl , Rouven Spiess , Rene Staub
IPC分类号： B42D25/364 , B42D25/324 , B42D25/328 , B42D25/351 , B42D25/391 , B42D25/405 , G02F1/137 , G02F1/1343 , G02F1/1335
摘要： The invention relates to a security element (1), a security document (2) with at least one security element (1), a transfer foil (3) with at least one security element (1) as well as a method for producing a security element (1), wherein the security element has at least one layer (11) that is electrically alterable in its optical effect. It is here provided that the at least one layer (11) that is electrically alterable in its optical effect has liquid crystals (12) that can be oriented in an electric field, wherein the at least one layer (11) that is electrically alterable in its optical effect has rod-shaped dye molecules (13), and the orientations of the longitudinal axes (14) of the rod-shaped dye molecules (13) are alterable depending on the orientations of the longitudinal axes (16) of the spatially adjacent liquid crystals (12) that can be oriented in the electric field, and/or wherein the liquid crystals (12) that can be oriented in the electric field are formed in such a way that the liquid crystals (12) that can be oriented in the electric field simultaneously act as dye molecules.
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公开(公告)号：US09796204B2
公开(公告)日：2017-10-24
申请号：US14354361
申请日：2012-10-26
申请人： OVD Kinegram AG
IPC分类号： B42D25/00 , B42D25/30 , B42D25/29 , B42D25/342 , B42D25/328 , B42D25/382 , B42D25/387
CPC分类号： B42D25/30 , B42D25/00 , B42D25/29 , B42D25/328 , B42D25/342 , B42D25/382 , B42D25/387 , B42D2033/04 , B42D2033/06 , B42D2033/08 , B42D2033/10 , B42D2033/20 , B42D2033/24 , B42D2033/26 , B42D2033/46 , B42D2035/20 , B42D2035/34 , Y10T29/49826
摘要： The invention relates to a security element (1). The security element (1) has a viewing side and a back side that is opposite the latter. The security element comprises at least one luminous layer (2) that can provide light (20), and at least one mask layer (4) that, when the security element (1) is viewed from the viewing side, is arranged in front of the at least one luminous layer (2). The at least one mask layer (4) has at least one opaque region (5) and at least two transparent openings (41, 42). The at least two transparent openings (41, 42) has a substantially higher transmittance than the at least one opaque region (5) in respect of light (20) provided by the at least one luminous layer (2), preferably a transmittance that is at least 20% higher, particularly preferably a transmittance that is at least 50% higher.
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公开(公告)号：US20160167422A1
公开(公告)日：2016-06-16
申请号：US14892420
申请日：2014-05-06
IPC分类号： B42D25/328 , G02B5/18 , G02B27/42 , B42D25/324
CPC分类号： B42D25/328 , B42D25/00 , B42D25/29 , B42D25/324 , B42D2035/50 , G02B5/1809 , G02B5/1861 , G02B27/4244 , G02B27/4272
摘要： An optically variable element has first and second diffraction gratings which are high-frequency and therefore act reflectively into the zero diffraction order. Either a first color is generated by the first diffraction grating at a particular angle of rotation and a particular angle of illumination and simultaneously a second color, different from the first color, is generated by the second diffraction grating or a visible color is generated essentially only by the first diffraction grating at a first angle of rotation and a visible color is generated essentially only by the second diffraction grating at a second angle of rotation.
摘要翻译： 光学可变元件具有高频的第一和第二衍射光栅，因此反射成零衍射级。 由第一衍射光栅在特定的旋转角度产生第一颜色，并且通过第二衍射光栅产生特定的照明角度并且同时产生与第一颜色不同的第二颜色，或者基本上仅生成可见颜色 通过第一衍射光栅处于第一旋转角度，并且可见颜色基本上仅以第二旋转角度由第二衍射光栅产生。
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公开(公告)号：US20140312607A1
公开(公告)日：2014-10-23
申请号：US14353992
申请日：2012-10-26
IPC分类号： B42D15/00
CPC分类号： B42D25/30 , B42D25/00 , B42D25/29 , B42D25/328 , B42D25/342 , B42D25/382 , B42D25/387 , B42D2033/04 , B42D2033/06 , B42D2033/08 , B42D2033/10 , B42D2033/20 , B42D2033/24 , B42D2033/26 , B42D2033/46 , B42D2035/20 , B42D2035/34 , Y10T29/49826
摘要： The invention relates to a security element (1). The security element (1) has a viewing side and a back side that is opposite the latter. The security element comprises at least one luminous layer (2) that can emit light (20), and at least one mask layer (4) that, when the security element (1) is viewed from the viewing side, is arranged in front of the at least one luminous layer (2). The at least one mask layer (4) has at least one opaque region (5) and at least two transparent openings (41, 42). The at least two transparent openings (41, 42) has a substantially higher transmittance than the at least one opaque region (5) in respect of light (20) emitted by the at least one luminous layer (2), preferably a transmittance that is at least 20% higher, particularly preferably a transmittance that is at least 50% higher.
摘要翻译： 本发明涉及安全元件（1）。 安全元件（1）具有与后者相对的观察侧和后侧。 安全元件包括至少一个能够发光的发光层（2）和至少一个掩模层（4），当从观察侧观察安全元件（1）时，至少一个掩模层（4）被布置在 所述至少一个发光层（2）。 至少一个掩模层（4）具有至少一个不透明区域（5）和至少两个透明开口（41,42）。 相对于由至少一个发光层（2）发射的光（20），所述至少两个透明开口（41,42）具有比所述至少一个不透明区域（5）更高的透射率，优选的透射率 至少高20％，特别优选高至少高50％的透射率。
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公开(公告)号：US20230062072A1
公开(公告)日：2023-03-02
申请号：US17793460
申请日：2021-01-14
发明人： Harald Walter , Corrado Fraschina , Sebastian Mader , Benno Schmitzer , Uwe Frieser , Hendrik Von Prince
IPC分类号： G07D7/00 , G07D7/0043 , G07D7/17
摘要： A method for authenticating a security document by means of at least one device includes: a) providing the security document having at least one first security element and at least one second security element; b) providing the at least one device, wherein the at least one device includes at least one sensor; c) capturing first items of optical information of the at least one first security element by means of the at least one sensor of the at least one device during a first illumination, wherein at least one first dataset specifying these items of information is generated therefrom; d) capturing second items of optical information of the at least one second security element by means of the at least one sensor of the at least one device during a second illumination, wherein at least one second dataset specifying these items of information is generated therefrom; e) capturing third items of optical information of the at least one second security element by means of the at least one sensor of the at least one device during a third illumination, wherein at least one third dataset specifying these items of information is generated therefrom, wherein the second illumination differs from the third illumination; f) checking the genuineness of the security document and/or the second security element at least on the basis of the at least one second dataset and the at least one third dataset.
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公开(公告)号：US20220324248A1
公开(公告)日：2022-10-13
申请号：US17616888
申请日：2020-06-04
发明人： Juri Attner , Philipp Schuler , René Staub , Harald Walter , Klaus Weber
IPC分类号： B42D25/351 , B42D25/324 , B42D25/373 , B42D25/41 , B42D25/445
摘要： A see-through security element (2), a security document (1) and a method for producing a see-through security element (2). The see-through security element has a first element with one or more transparent first partial areas and at least one reflective second partial area. The see-through security element has a second element with one or more first partial areas, which in each case in transmission form a color filter matched to a respectively assigned color, and has at least one second partial area, which is formed colorless, in particular colorless transparent, or in transmission and/or reflection forms a color filter which is matched to a color which is not assigned to any of the one or more first partial area of the second element. The first partial areas of the first element and the first partial areas of the second element at least partially overlap.
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公开(公告)号：US10926570B2
公开(公告)日：2021-02-23
申请号：US15875446
申请日：2018-01-19
申请人： OVD Kinegram AG
IPC分类号： G03H1/00 , B42D25/29 , G02B5/00 , G02B5/18 , B42D25/36 , B42D25/324 , B42D25/342 , B42D25/378 , B42D25/373 , B42D25/328 , B41F19/02 , G03H1/02
摘要： A multilayer body (1, 2, 3) and a method for producing a security element are described. The multilayer body has a metal layer (21). An optically active surface relief is molded at least in areas in a first surface of the metal layer (21) facing the upper side of the multilayer body or forming the upper side of the multilayer body and/or in a second surface of the metal layer (21) facing the underside of the multilayer body or forming the underside of the multilayer body. In at least one first area (31 to 39) of the multilayer body the surface relief is formed by a first relief structure (61). In at least one direction (617) determined by an allocated azimuth angle, the first relief structure (61) has a sequence of elevations (612) and depressions (614), the elevations (612) of which follow on from each other with a period P which is smaller than a wavelength of visible light, wherein the minima of the depressions (614) lie on a base surface and the first relief structure (61) has a relief depth t which is determined by the spacing of the maxima of the elevations (612) of the first relief structure (61) from the base surface in a direction perpendicular to the base surface. The profile shape and/or the relief depth t of the first relief structure (61) is chosen such that the colored appearance of the light (52, 53) incident on the first area (31 to 39) at least at a first angle of incidence and directly reflected by the metal layer (21) in the first area or directly transmitted through the metal layer is modified, in particular is modified by plasmon resonance of the metal layer with the incident light.
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公开(公告)号：US10882351B2
公开(公告)日：2021-01-05
申请号：US15543093
申请日：2016-01-11
IPC分类号： B42D25/23 , G02B5/18 , B42D25/29 , B42D25/45 , B42D25/324 , B42D25/351 , B42D25/328 , B42D25/24 , B05D7/24
摘要： A method for producing a multilayer body, with the steps of: a) providing a substrate film with a replication layer; b) molding a surface relief appearing to the observer in the form of a three-dimensional free-form surface, which is formed in particular by structures with a lens-like design generating a magnifying, demagnifying or distorting effect, into a surface of the replication layer; c) applying a first metal layer to the surface of the replication layer forming the surface relief; d) wet-chemically applying an at least partially transparent spacer layer to the metal layer; e) applying a second metal layer to the spacer layer.
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公开(公告)号：US20180201043A1
公开(公告)日：2018-07-19
申请号：US15875446
申请日：2018-01-19
申请人： OVD Kinegram AG
IPC分类号： B42D25/29 , G03H1/02 , G03H1/00 , G02B5/18 , B42D25/324 , B41F19/02 , B42D25/378 , B42D25/373 , B42D25/36 , B42D25/342 , B42D25/328 , G02B5/00
CPC分类号： B42D25/29 , B41F19/02 , B42D25/324 , B42D25/328 , B42D25/342 , B42D25/36 , B42D25/373 , B42D25/378 , B42D2035/24 , G02B5/008 , G02B5/1819 , G02B5/1842 , G02B5/1852 , G02B5/1861 , G03H1/0011 , G03H1/0244
摘要： A multilayer body (1, 2, 3) and a method for producing a security element are described. The multilayer body has a metal layer (21). An optically active surface relief is molded at least in areas in a first surface of the metal layer (21) facing the upper side of the multilayer body or forming the upper side of the multilayer body and/or in a second surface of the metal layer (21) facing the underside of the multilayer body or forming the underside of the multilayer body. In at least one first area (31 to 39) of the multilayer body the surface relief is formed by a first relief structure (61). In at least one direction (617) determined by an allocated azimuth angle, the first relief structure (61) has a sequence of elevations (612) and depressions (614), the elevations (612) of which follow on from each other with a period P which is smaller than a wavelength of visible light, wherein the minima of the depressions (614) lie on a base surface and the first relief structure (61) has a relief depth t which is determined by the spacing of the maxima of the elevations (612) of the first relief structure (61) from the base surface in a direction perpendicular to the base surface. The profile shape and/or the relief depth t of the first relief structure (61) is chosen such that the colored appearance of the light (52, 53) incident on the first area (31 to 39) at least at a first angle of incidence and directly reflected by the metal layer (21) in the first area or directly transmitted through the metal layer is modified, in particular is modified by plasmon resonance of the metal layer with the incident light.
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