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    OPTICAL ANTI-COUNTERFEITING ELEMENT AND ANTI-COUNTERFEITING PRODUCT
    11.
    发明申请
    OPTICAL ANTI-COUNTERFEITING ELEMENT AND ANTI-COUNTERFEITING PRODUCT 有权

    公开(公告)号：US20220388326A1

    公开(公告)日：2022-12-08

    申请号：US17765408

    申请日：2019-09-22

    Applicant: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD ,  CHINA BANKNOTE PRINTING AND MINTING CORP.

    Inventor： Kai SUN ,  Jun ZHU

    IPC: B42D25/324 ,  G02B3/08

    Abstract: Provided are an optical anti-counterfeiting element and an anti-counterfeiting product, the optical anti-counterfeiting element comprises: a substrate (1); and a plurality of Fresnel structures (2) with preset lateral dimensions formed on the substrate (1), the plurality of Fresnel structures (2), when illuminated by a preset light source, being used to form preset graphic information in the transmission direction, and to present the preset graphic information with a relief effect in the reflection direction. The optical anti-counterfeiting element, when illuminated, reproduces a preset pattern from the transmission direction, and presents a relief effect from the reflection direction. The element improves anti-counterfeiting ability and recognition, and has a simple identification process.

    ANTI-COUNTERFEITING COMPONENT AND OPTICAL ANTI-COUNTERFEITING PRODUCT
    13.
    发明申请
    ANTI-COUNTERFEITING COMPONENT AND OPTICAL ANTI-COUNTERFEITING PRODUCT 审中-公开

    公开(公告)号：US20200269628A1

    公开(公告)日：2020-08-27

    申请号：US16820140

    申请日：2020-03-16

    Applicant: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD ,  CHINA BANKNOTE PRINTING AND MINTING CORP.

    Inventor： Baoli Zhang ,  Kai Sun ,  Jun Zhu ,  Xiaoli Wang

    IPC: B42D25/36 ,  G02B5/22 ,  G06K19/06

    Abstract: The invention relates to the field of optical anti-counterfeiting, and discloses an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate which is at least partially pervious to light, comprising a first surface and a second surface opposite each other; an anti-counterfeiting image formed on the first surface of the substrate, wherein the anti-counterfeiting image comprises a plurality of imaging pixel groups, and the imaging pixel groups are arranged aperiodically and/or without an axis of symmetry; and a sampling-synthesis layer with optical characteristics formed on the second surface of the substrate, wherein target visual images corresponding to the imaging pixel groups can be presented through a light-pervious part of the substrate and the sampling-synthesis layer. In this way, at least the technical problems of poor anti-counterfeiting performance and easy cracking caused by the adoption of a periodic micro-graphic array in the prior art can be solved.

    OPTICALLY VARIABLE SECURITY THREADS AND STRIPES
    14.
    发明申请
    OPTICALLY VARIABLE SECURITY THREADS AND STRIPES 有权
    光学可变安全螺纹和条纹

    公开(公告)号：US20150258837A1

    公开(公告)日：2015-09-17

    申请号：US14418483

    申请日：2012-08-01

    Applicant: SICPA HOLDING SA ,  CHINA BANKNOTE PRINTING AND MINTING CORPORATION ,  ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD. ,  CHINA BANKNOTE SICPA SECURITY INK CO., LTD.

    Inventor： Gebhard Ritter ,  Raynald Demange ,  Pierre Degott ,  Zhongdong Ye ,  Yuanqi Wu ,  Fangyi Sun ,  Weiru Wang ,  Xiang Li

    IPC: B42D25/30 ,  B42D25/45

    CPC classification number: B42D25/30 ,  B41M3/148 ,  B42D25/00 ,  B42D25/351 ,  B42D25/355 ,  B42D25/45 ,  G09F3/0292 ,  G09F19/14

    Abstract: In the field of protection of value documents and value commercial goods, the present disclosure relates to the field of security threads or stripes to be incorporated into or onto security documents, and security documents having security threads or stripes. The security threads or stripes include i) first optically variable layer imparting a first different color impression at different viewing angles, ii) second optically variable layer imparting a second different color impression at different viewing angles, iii) first color constant layer having a color matching color impression of the first or second optically variable layer at a first viewing angle, iv) second color constant layer having a color matching color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate. The layers are jointly visible from one side of the security thread or stripe.

    Abstract translation: 在价值文件和价值商品的保护领域中，本公开涉及要并入到安全文件中的安全线程或条带的领域，以及具有安全线程或条带的安全文档。 安全线或条包括：i）以不同视角赋予第一不同颜色印象的第一光学可变层，ii）以不同视角赋予第二不同颜色印象的第二光学可变层，iii）具有颜色匹配的第一颜色恒定层 在第一视角下第一或第二光学可变层的彩色印象，iv）具有在第二视角下的第一或第二光学可变层的颜色匹配颜色印象的第二颜色恒定层，以及v）基底。 这些层从安全线程或条带的一侧共同可见。

    OPTICAL ANTI-COUNTERFEITING ELEMENT AND OPTICAL ANTI-COUNTERFEITING PRODUCT
    18.
    发明申请
    OPTICAL ANTI-COUNTERFEITING ELEMENT AND OPTICAL ANTI-COUNTERFEITING PRODUCT 有权

    公开(公告)号：US20220274435A1

    公开(公告)日：2022-09-01

    申请号：US17637421

    申请日：2020-08-12

    Applicant: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD ,  CHINA BANKNOTE PRINTING AND MINTING CORP.

    Inventor： Weiwei ZHANG ,  Chunhua HU

    IPC: B42D25/324 ,  B42D25/36 ,  G02B1/10

    Abstract: The disclosure provides an optical anti-counterfeiting element and an optical anti-counterfeiting product, the optical anti-counterfeiting element includes: a substrate (2) having a first surface and a second surface opposite to each other; a microstructure formation layer (3) formed on the first surface, the microstructure formation layer (3) includes at least a first region (41), the first region (41) includes at least a first microstructure (5), the first microstructure (5) includes a convex portion and/or a concave portion; and optically variable coatings (4a, 4b) homomorphically covering on the first microstructure (5), the optically variable coatings (4a, 4b) include reflective layers (4a1, 4b1), dielectric layers (4a2, 4b2) and absorption layers (4a3, 4b3) which are stacked in sequence, wherein the reflective layers (4a1, 4b1) or the absorption layers (4a3, 4b3) are in contact with the first microstructure (5), and the dielectric layers (4a2, 4b2) are obtained by coating or printing.

    OPTICAL ANTI-COUNTERFEITING ELEMENT AND ANTI-COUNTERFEITING PRODUCT
    19.
    发明申请
    OPTICAL ANTI-COUNTERFEITING ELEMENT AND ANTI-COUNTERFEITING PRODUCT 有权

    公开(公告)号：US20220134793A1

    公开(公告)日：2022-05-05

    申请号：US17310863

    申请日：2020-02-28

    Applicant: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD ,  CHINA BANKNOTE PRINTING AND MINTING CORP.

    Inventor： Xin Qu ,  Baoli Zhang ,  Jun Zhu

    IPC: B42D25/328 ,  B42D25/324 ,  B42D25/351

    Abstract: Disclosed are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element includes: a substrate, the substrate including a first surface and a second surface opposite each other; a first micro-embossment structure at least partially covering the first surface, the first micro-embossment structure including a first micro-lens array and a first micro-graph array; and a second micro-embossment structure at least partially covering the second surface, the second micro-embossment structure including a second micro-lens array and a second micro-graph array; and wherein the first micro-lens array is configured to sample and synthesize the second micro-graph array, so as to form a first reproduced image, and the second micro-lens array is configured to sample and synthesize the first micro-graph array, so as to form a second reproduced image. According to the anti-counterfeiting element, a sampled and enlarged reproduced image may be observed from both sides of the substrate separately.

    OPTICAL ANTI-COUNTERFEITING ELEMENT AND MANUFACTURING METHOD THEREFOR, AND OPTICAL ANTI-COUNTERFEITING PRODUCT
    20.
    发明申请
    OPTICAL ANTI-COUNTERFEITING ELEMENT AND MANUFACTURING METHOD THEREFOR, AND OPTICAL ANTI-COUNTERFEITING PRODUCT 有权

    公开(公告)号：US20210162794A1

    公开(公告)日：2021-06-03

    申请号：US17048137

    申请日：2019-04-08

    Applicant: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD ,  CHINA BANKNOTE PRINTING AND MINTING CORP.

    Inventor： Chunhua HU ,  Jun ZHU ,  Weiwei ZHANG ,  Baoli ZHANG ,  Yan LI

    IPC: B42D25/328 ,  B42D25/45 ,  G02B5/18

    Abstract: Embodiments of the present invention provide an optical anti-counterfeiting element and a preparation method thereof, and an optical anti-counterfeiting product, and belong to the field of optical anti-counterfeiting. The optical anti-counterfeiting element comprises: a transparent undulating structure layer, comprising a first undulating structure and a second undulating structure, wherein the first undulating structure and the second undulating structure meet the following conditions: the depth-to-width ratio of the first undulating structure is less than that of the second undulating structure, and/or the specific volume of the first undulating structure is less than that of the second undulating structure; and an interference optically variable coating, formed on the first undulating structure, wherein when the interference optically variable coating is observed from two sides, optically variable effects are presented at the two sides, and when the optical anti-counterfeiting element is observed through transmission, an image defined by the boundary of the second undulating structure is presented. Therefore, the optical anti-counterfeiting element can simultaneously present image effects and optically variable effects when being observed from two sides and has a hollowed-out effect when being observed through transmission.

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