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    Multi-layer body
    1.
    发明授权
    Multi-layer body 有权

    公开(公告)号：US10427368B2

    公开(公告)日：2019-10-01

    申请号：US15592918

    申请日：2017-05-11

    Applicant: OVD Kinegram AG

    Inventor： Wayne Robert Tompkin ,  Harald Walter

    IPC: B29D11/00 ,  B32B15/04 ,  B32B3/30 ,  B42D25/29 ,  B42D25/324 ,  B42D25/45

    Abstract: 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.

    Security Element
    3.
    发明申请
    Security Element 审中-公开

    公开(公告)号：US20180134065A1

    公开(公告)日：2018-05-17

    申请号：US15527569

    申请日：2015-12-02

    Applicant: LEONHARD KURZ Stiftung & Co. KG ,  OVD Kinegram AG

    Inventor： Wayne Robert Tompkin ,  Harald Walter ,  Rainer Stahl ,  Rouven Spiess ,  Rene Staub

    IPC: B42D25/364 ,  B42D25/324 ,  B42D25/328 ,  B42D25/351 ,  B42D25/391 ,  B42D25/405 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/1335

    Abstract: 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.

    Optically Variable Element
    6.
    发明申请
    Optically Variable Element 审中-公开
    光学可变元件

    公开(公告)号：US20160167422A1

    公开(公告)日：2016-06-16

    申请号：US14892420

    申请日：2014-05-06

    Applicant: LEONHARD KURZ STIFTUNG & CO. KG ,  OVD KINEGRAM AG

    Inventor： Ludwig Brehm ,  Sebastian Mader ,  Andreas Schilling ,  Wayne Robert Tompkin ,  Harald Walter

    IPC: B42D25/328 ,  G02B5/18 ,  G02B27/42 ,  B42D25/324

    CPC classification number: B42D25/328 ,  B42D25/00 ,  B42D25/29 ,  B42D25/324 ,  B42D2035/50 ,  G02B5/1809 ,  G02B5/1861 ,  G02B27/4244 ,  G02B27/4272

    Abstract: 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.

    Abstract translation: 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。

    Security Element
    7.
    发明申请
    Security Element 有权
    安全元素

    公开(公告)号：US20140312607A1

    公开(公告)日：2014-10-23

    申请号：US14353992

    申请日：2012-10-26

    Applicant: OVD Kinegram AG ,  Bundesdruckerei GmbH

    Inventor： Wayne Robert Tompkin ,  Harald Walter ,  Olga Kulikovska ,  Jörg Fischer ,  André Leopold

    IPC: B42D15/00

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    Multilayer body
    8.
    发明授权
    Multilayer body 有权

    公开(公告)号：US11077700B2

    公开(公告)日：2021-08-03

    申请号：US15977621

    申请日：2018-05-11

    Applicant: OVD Kinegram AG

    Inventor： Andreas Schilling ,  Wayne Robert Tompkin ,  Achim Hansen

    IPC: B42D25/45 ,  B42D25/351 ,  B42D25/36 ,  B42D25/21 ,  B42D25/342 ,  B42D25/324 ,  B42D25/328 ,  B42D25/29 ,  G02B3/00

    Abstract: A multilayer body includes a transparent first layer. In the transparent first layer, a multiplicity of microlenses arranged in accordance with a microlens grid are impressed in a first region. Furthermore, the multilayer body includes a second layer, which is arranged below the first layer and in a fixed position with respect to the first layer and has a multiplicity of microimages arranged in accordance with a microimage grid and in each case in an at least regional overlap with one of the microlenses of the microlens grid for the purpose of generating a first optically variable information item. The grid pitches of the microimage grid and of the microlens grid in each case in at least one spatial direction are less than 300 μm.

    Multilayer body and method for producing a security element
    9.
    发明授权
    Multilayer body and method for producing a security element 有权

    公开(公告)号：US10926570B2

    公开(公告)日：2021-02-23

    申请号：US15875446

    申请日：2018-01-19

    Applicant: OVD Kinegram AG

    Inventor： Harald Walter ,  Wayne Robert Tompkin

    IPC: G03H1/00 ,  B42D25/29 ,  G02B5/00 ,  G02B5/18 ,  B42D25/36 ,  B42D25/324 ,  B42D25/342 ,  B42D25/378 ,  B42D25/373 ,  B42D25/328 ,  B41F19/02 ,  G03H1/02

    Abstract: 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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