Secure holographic images on paper
    52.
    发明授权
    Secure holographic images on paper 失效
    安全的全息图像在纸上

    公开(公告)号:US06414761B1

    公开(公告)日:2002-07-02

    申请号:US09687272

    申请日:2000-10-13

    IPC分类号: G03H100

    摘要: A paper support has an adhesive layer and a metallized holographic image, wherein the metallized holographic image includes at least two holograms, such that the first hologram is visible only by non-coherent light and the second hologram is visible only by coherent light. The holographic images are formed on a photosensitive element on a polymeric support by imaging steps, which include metallizing the holographic images and overcoating the holographic images with an adhesive layer. Next, the metallized holographic images are transferred to the paper by laminating the adhesive layer to the paper at a predetermined temperature and pressure, and subsequently delaminating the polymeric support from the paper, such that the holographic image remains on the polymer support for reuse.

    摘要翻译: 纸张支撑件具有粘合剂层和金属化全息图像,其中金属化全息图像包括至少两个全息图,使得第一全息图仅由非相干光可见,并且第二全息图仅由相干光可见。 全息图像通过成像步骤在聚合物载体上的感光元件上形成,其包括金属化全息图像并用粘合剂层外涂全息图像。 接下来,通过在预定的温度和压力下将粘合剂层层压到纸上,随后将金属化的全息图像转印到纸张上,随后将聚合物载体从纸上分层,使得全息图像保留在聚合物载体上用于再利用。

    Composite image arrangement
    55.
    发明授权
    Composite image arrangement 失效
    复合图像排列

    公开(公告)号:US5851032A

    公开(公告)日:1998-12-22

    申请号:US619551

    申请日:1996-03-27

    IPC分类号: B41M3/14 B42D15/00 G09F19/14

    CPC分类号: G09F19/14 B41M3/148 B42D25/29

    摘要: This invention relates to a composite image arrangement, comprising a pattern and a further pattern, substantially parallel to the first pattern, each comprising a plurality of visually contrasting regions, the patterns being in fixed positions relative one to the other on either side of a light transmissive lamina.

    摘要翻译: PCT No.PCT / GB94 / 02150 Sec。 371日期:1996年3月27日 102(e)1996年3月27日PCT 1994年10月4日PCT PCT。 第WO95 / 09731号公报 日期1995年04月13日本发明涉及一种合成图像布置,其包括基本上平行于第一图案的图案和另一图案,每个图案包括多个视觉对比区域,所述图案彼此相对地固定在 透光层的任一侧。

    FORMATION OF A 3D IMAGE USING A LENTICULAR STRUCTURE

    公开(公告)号:US20240278591A1

    公开(公告)日:2024-08-22

    申请号:US18570484

    申请日:2022-06-15

    申请人: IDEMIA FRANCE

    IPC分类号: B41M5/24 B41M3/14 G02B3/00

    CPC分类号: B41M5/24 B41M3/148 G02B3/0075

    摘要: Forming a 3D image using a lenticular structure includes a carrier layer having an arrangement of color sub-pixels and a lenticular array comprising convergent lenses facing the sub-pixels. A method includes performing visual inspection of the lenticular structure, during which sub-pixels viewable through the lenses are detected for a plurality of viewing directions; determining, based on the color of the sub-pixels detected for each viewing direction, grayscale levels required to reveal M images viewable through the lenticular array in the M viewing directions, respectively; and customizing the sub-pixel arrangement, during which the grayscale levels are engraved facing the sub-pixels in the carrier layer by focus of laser radiation through the lenses.

    ANTI-HARVESTABLE SECURITY FEATURE
    60.
    发明申请

    公开(公告)号:US20190184731A1

    公开(公告)日:2019-06-20

    申请号:US16326149

    申请日:2017-08-15

    摘要: A security device includes an array of image icon elements and an array of image icon focusing elements, wherein the array of image icon elements and the array of image icon focusing elements are disposed relative to each other such that the security device projects a synthetic image along a viewing angle and wherein the security device is configured to physically degrade when exposed to temperatures above an anti-harvesting temperature, the anti-harvesting temperature being lower than a harvesting temperature of a coupling between the security device and a substrate.