Security element comprising macrostructures
    91.
    发明授权
    Security element comprising macrostructures 有权
    包括宏观结构的安全元件

    公开(公告)号:US07002746B2

    公开(公告)日:2006-02-21

    申请号:US10510114

    申请日:2003-04-03

    IPC分类号: G02B5/18

    CPC分类号: B42D25/328

    摘要: A security element for sticking onto a document comprises a layer composite of plastic material and has embedded, optically effective structures of a pattern . The optically effective structures in surface portions of the pattern are in a reference plane, defined by co-ordinate axis (x; y), of the layer composite and are shaped into a reflecting interface. The interface is embedded between a transparent shaping layer and a protective layer of the layer composite. At least one surface portion is of a dimension of greater than 0.4 mm and in the interface has at least one shaped macrostructure which is an at least portion-wise steady and differentiatable function of the co-ordinates (x; y). The macrostructure is curved at least in partial regions and is not a periodic triangular or rectangular function. In the surface portion adjacent extreme values of the macrostructure are at least 0.1 mm away from each other. Upon illumination of the pattern with light an optically variable pattern of light reflection phenomena is visible on the security element upon changing the viewing direction.

    摘要翻译: 用于粘贴到文件上的安全元件包括塑料材料的复合层,并且具有嵌入的,光学有效的图案结构。 图案的表面部分中的光学有效结构在由层复合材料的坐标轴(x; y)定义的参考平面中,并且被成形为反射界面。 该界面嵌入在透明成形层和层复合材料的保护层之间。 至少一个表面部分具有大于0.4mm的尺寸,并且在界面中具有至少一个成形的宏观结构,其是坐标(x; y)的至少部分稳定和可微分的函数。 宏观结构至少在部分区域中弯曲,不是周期性的三角形或矩形函数。 在宏观结构的邻近极值的表面部分彼此之间至少为0.1mm。 当用光照射图案时,在改变观察方向时,安全元件上可见光反射现象的光学可变图案。

    Security element with diffraction structures
    92.
    发明授权
    Security element with diffraction structures 有权
    具有衍射结构的安全元件

    公开(公告)号:US06909547B2

    公开(公告)日:2005-06-21

    申请号:US10496321

    申请日:2002-10-15

    摘要: A security element (2) comprising a plastic laminate has a surface pattern (12) composed mosaic-like from surface elements (13; 14; 15). Shaped into at least two of the surface elements (14; 15) is a respective diffraction structure {B(x, y, T)} produced from a superimposition of a low-frequency grating structure {G(x, y)} with a high-frequency relief structure {R(x, y)}. In the one surface element (14) a grating vector of the grating structure {G(x, y)} and a relief vector of the relief structure {R(x, y)} are parallel and in the other surface element (15) the grating vector (16) and the relief vector (17) include a substantially right angle. In addition the grating vectors (16) of the grating structures {G(x, y)} in the two surface elements (14; 15) are parallel. A common boundary (18) of the two surface elements (14; 15) is visible only upon lighting with linearly polarized light, in daylight both surface elements (14; 15) have the same surface brightness.

    摘要翻译: 包括塑料层压板的安全元件(2)具有从表面元件(13; 14; 15)构成镶嵌状的表面图案(12)。 形成至少两个表面元件(14; 15)的是相应的衍射结构{B(x,y,T),由低频光栅结构{G(x,y)与高频浮雕 结构{R(x,y)在一个表面元件(14)中,光栅结构{G(x,y)和浮雕结构{R(x,y)的平移和平面的另一表面的光栅矢量 另外,两个表面元件(14; 15)中的光栅结构{G(x,y))的光栅矢量(16)包括光栅矢量(16)和浮雕矢量 两个表面元件(14; 15)的共同边界(18)仅在用线偏振光照明时可见,在白天,两个表面元件(14; 15)具有相同的表面亮度。

    Device for recognizing diffraction optical markings
    93.
    发明授权
    Device for recognizing diffraction optical markings 有权
    用于识别衍射光学标记的装置

    公开(公告)号:US06365907B1

    公开(公告)日:2002-04-02

    申请号:US09445319

    申请日:2000-03-22

    IPC分类号: G06K710

    摘要: The invention relates to a device for the simultaneous machine recognition of Q diffraction optical markings (11) of a security element (4), which devices comprises a light source (1) for projecting parallel light (10) onto a document (3) provided with said security element (4), an optical collector element (2), photodetectors (5; 6) for converting the light (15; 16) diffracted on the markings (11) or the rays reflected on the substrate (3) into electrical signals, as well as an evaluation unit for evaluating said signals. The photodetectors (5; 6) are positioned in the focal plane (8′) of the optical collector element (2). In each case two photodetectors (5; 6) form a photodetector pair. The electrical signals of each pair are analysed and the results of all photodetector pairs are compared with corresponding reference values in the evaluation unit. All the optical markings (11) are read simultaneously and form a code for identifying the security element (4).

    摘要翻译: 本发明涉及用于同时机器识别安全元件(4)的Q衍射光学标记(11)的装置,该装置包括用于将平行光(10)投射到提供的文件(3)上的光源(1) 与所述安全元件(4)相连的光收发器元件(2),用于将在标记(11)上衍射的光或基板(3)上反射的光线转换为电气的光检测器(5; 6) 信号,以及用于评估所述信号的评估单元。 光电检测器(5; 6)位于光收发器元件(2)的焦平面(8')中。 在每种情况下,两个光电检测器(5; 6)形成光电检测器对。 分析每对的电信号,并将所有光电检测器对的结果与评估单元中的相应参考值进行比较。 所有的光学标记(11)被同时读取并形成用于识别安全元件(4)的代码。

    Optical information carrier
    94.
    发明授权
    Optical information carrier 失效
    光信息载体

    公开(公告)号:US6060143A

    公开(公告)日:2000-05-09

    申请号:US77046

    申请日:1998-05-18

    IPC分类号: G06K19/06 B32B3/02

    摘要: An optical information carrier is in the form of a composite laminate having a carrier foil. The underside and the top side of the carrier foil are provided with optically effective structures. The carrier foil is approximately transparent for light in a predetermined spectral range. The structures allow light impinging on the top side to penetrate at least partially into the composite laminate. The structures on the underside are microscopically fine relief structures which are covered with a base layer whose refractive index differs from the refractive index of the carrier foil in at least a portion of the electromagnetic spectrum so that the structures on the underside at least partially reflect and diffract the light which has penetrated into the composite laminate. The structures on the top side in turn modify the diffracted light. The interplay of the two structures provides manifold characteristic optical effects such as moire effects and light guide effects. It is also possible in that way to produce optical storage means, retroreflectors and other security features, being well protected from foreign access.

    摘要翻译: PCT No.PCT / EP96 / 04987第 371日期1998年5月18日 102(e)日期1998年5月18日PCT 1996年11月14日PCT PCT。 出版物WO97 / 198202 日期:1997年6月5日光信息载体是具有载体箔的复合层压体的形式。 载体箔的下侧和顶侧设置有光学有效结构。 对于预定光谱范围内的光,载体箔近似透明。 该结构允许在顶侧撞击的光至少部分地渗透到复合层压板中。 底面上的结构是显微细微的浮雕结构,其覆盖有基层,其折射率在电磁光谱的至少一部分中与载体箔的折射率不同,使得底面上的结构至少部分地反射和 衍射穿透到复合层压板中的光。 顶侧的结构依次修改衍射光。 两个结构的相互作用提供了多种特征的光学效应,例如莫尔效应和导光效应。 也可以以这种方式生产光存储装置,后向反射器和其他安全特征,被很好地保护免受外来访问。