Optical security component with reflective effect, production of such a component and secure document provided with such a component

    公开(公告)号:US10343443B2

    公开(公告)日:2019-07-09

    申请号:US15968332

    申请日:2018-05-01

    申请人: SURYS

    摘要: According to one aspect, the invention relates to an optical security component intended for being observed under direct reflection. The component comprises a structure engraved on a layer of a material having a refraction index n2, a thin layer of a dielectric material having a refraction index n1 other than n2, deposited on the structure, and a layer of a material having a refraction index no other than n1, encapsulating the coated structure of the thin layer. The structure has a first pattern modulated by a second pattern such that, in at least one first region (61, 86), the first pattern comprises a low-relief with a first set of facets, the shapes of which are determined such as to generate at least one first concave or convex cylindrical reflective element, and the second pattern forms a first subwavelength grating acting, after depositing the thin layer and encapsulating the structure, as a first wavelength-subtractive filter; in at least one second region (62, 86), the first pattern comprises a low-relief with a second set of facets in which the shapes are determined such as to generate at least one concave or convex cylindrical reflective element (64), and the second pattern forms a second subwavelength grating acting, after depositing the thin layer and encapsulating the structure, as a second wavelength-subtractive filter, separate from the first wave-length-subtractive filter. Each subwavelength grating can be a zero order diffraction grating such as a DID.

    Customizable document for producing a security document, customized security document and production of such a security document

    公开(公告)号:US10076922B2

    公开(公告)日:2018-09-18

    申请号:US15037973

    申请日:2014-09-25

    申请人: SURYS

    摘要: According to one aspect, the invention relates to a customizable document for producing a customized security document (10, 20). The customizable document includes, according to an alternative: a layer (12) which can be customized by contact-free writing an opaque customization mask that is transparent in at least one transparency area (121); a first multilayer film (102) arranged on a first side of the customizable layer (12), including a layer having a high refractive index and encapsulated between two layers having a low refractive index, and structured over at least a portion of the surface thereof such as to form a first subwavelength array, characterized by a first array vector, such that the first multilayer film acts at zero order as a wavelength subtractive filter; a second multilayer film (102) arranged on a second side of the customizable layer, opposite the first side, including a layer having a high refractive index and encapsulated between two layers having a low refractive index, and structured over at least a portion of the surface thereof such as to form a second subwavelength array characterized by a second array vector, such that the second multilayer film acts at zero order as a wavelength subtractive filter, the first and second arrays being at least partially stacked.

    OPTICAL SECURITY COMPONENT
    23.
    发明申请

    公开(公告)号:US20180029402A1

    公开(公告)日:2018-02-01

    申请号:US15543647

    申请日:2016-01-15

    申请人: SURYS

    发明人: Antoine Dhôme

    摘要: An ID document comprises a receiving substrate in or on which an ink that is fluorescent under UV-A lighting is locally deposited, and a multilayer optical security component attached to a substrate. The optical component comprises a structurable layer and a reflective dielectric layer discontinuously deposited on the structurable layer in the plane of the component so as to produce patterns. The reflective dielectric layer has a relative transmission of at most 40% in the UV-B or UV-C range. The optical component also include an assembly of at least one layer including pigments that are fluorescent when energized by UV-B or UV-C. These are deposited on the reflective dielectric layer in a uniform or discontinuous manner in the plane of the optical component.

    METHOD OF SECURING A TWO-DIMENSIONAL BARCODE

    公开(公告)号:US20170103293A1

    公开(公告)日:2017-04-13

    申请号:US15290340

    申请日:2016-10-11

    申请人: SURYS

    发明人: Marc Pic

    IPC分类号: G06K19/06 G06K7/14 G06K19/10

    摘要: A method of securing a redundant initial two-dimensional barcode includes providing an initial message having a unique identifier, encoding the initial message as a set of predefined symbols so as to generate a redundant initial two-dimensional barcode having a redundant zone, generating a unique secret character string having a predefined fixed size, encoding the unique secret character string as a set of predefined symbols identical to the symbols used to generate the redundant initial two-dimensional barcode, and inserting the encoded unique secret character string into a redundant zone of the redundant initial two-dimensional barcode, each symbol of said encoded unique secret character string having a predefined position, so as to create a final two-dimensional barcode.

    OPTICAL SECURITY COMPONENT WITH REFLECTIVE EFFECT, PRODUCTION OF SUCH A COMPONENT AND SECURE DOCUMENT PROVIDED WITH SUCH A COMPONENT
    25.
    发明申请
    OPTICAL SECURITY COMPONENT WITH REFLECTIVE EFFECT, PRODUCTION OF SUCH A COMPONENT AND SECURE DOCUMENT PROVIDED WITH SUCH A COMPONENT 有权
    具有反射效果的光学安全组件,生产这样的组件和具有这种组件的安全文件

    公开(公告)号:US20170021660A1

    公开(公告)日:2017-01-26

    申请号:US15302547

    申请日:2015-03-12

    申请人: SURYS

    摘要: According to one aspect, the invention relates to an optical security component intended for being observed under direct reflection. The component comprises a structure engraved on a layer of a material having a refraction index n2, a thin layer of a dielectric material having a refraction index n1 other than n2, deposited on the structure, and a layer of a material having a refraction index n0 other than n1, encapsulating the coated structure of the thin layer. The structure has a first pattern modulated by a second pattern such that, in at least one first region (61, 86), the first pattern comprises a low-relief with a first set of facets, the shapes of which are determined such as to generate at least one first concave or convex cylindrical reflective element, and the second pattern forms a first subwavelength grating acting, after depositing the thin layer and encapsulating the structure, as a first wavelength-subtractive filter; in at least one second region (62, 86), the first pattern comprises a low-relief with a second set of facets in which the shapes are determined such as to generate at least one concave or convex cylindrical reflective element (64), and the second pattern forms a second subwavelength grating acting, after depositing the thin layer and encapsulating the structure, as a second wavelength-subtractive filter, separate from the first wave-length-subtractive filter. Each subwavelength grating can be a zero order diffraction grating such as a DID.

    摘要翻译: 根据一个方面,本发明涉及旨在在直接反射下观察的光学安全部件。 该组件包括雕刻在具有折射率n2的材料层上的结构,沉积在该结构上的具有n2以外的折射率n1的介电材料的薄层和具有折射率n0的材料层 不同于n1,封装薄层的涂层结构。 该结构具有由第二图案调制的第一图案,使得在至少一个第一区域(61,86)中,第一图案包括具有第一组小面的低浮雕,其形状被确定为 产生至少一个第一凹或圆柱形反射元件,并且第二图案形成第一亚波长光栅,其在沉积薄层并封装结构之后作为第一波长减去滤光器起作用; 在至少一个第二区域(62,86)中,第一图案包括具有第二组小平面的低浮雕,其中确定形状以便产生至少一个凹或圆柱形反射元件(64),以及 第二图案形成第二亚波长光栅,其在沉积薄层并封装结构之后,作为与第一波长减去滤光器分离的第二波长减去滤光器。 每个亚波长光栅可以是零级衍射光栅,例如DID。