Data Storage in a Diffractive Optical Element
    1.
    发明申请
    Data Storage in a Diffractive Optical Element 审中-公开
    衍射光学元件中的数据存储

    公开(公告)号:US20100195174A1

    公开(公告)日:2010-08-05

    申请号:US12161036

    申请日:2007-01-16

    IPC分类号: G03H1/00

    摘要: A diffractive optical element (DOE) and various methods of producing such a DOE are provided in which a diffractive optical microstructure is formed with encrypted data on at least one side of a transparent substrate or in a layer applied to the substrate. The diffractive optical microstructure when illuminated with collimated light, generates a far field interference pattern corresponding to the encrypted data which may be decrypted with suitable optical detectors and processing equipment.

    摘要翻译: 提供衍射光学元件(DOE)和制造这种DOE的各种方法,其中衍射光学微结构在透明基板的至少一侧或施加到基板的层中形成有加密数据。 当用准直光照射时,衍射光学微结构产生对应于可用合适的光学检测器和处理设备解密的加密数据的远场干涉图案。

    Method of producing diffractive structures in security documents
    3.
    发明授权
    Method of producing diffractive structures in security documents 失效
    在安全文件中生产衍射结构的方法

    公开(公告)号:US07871741B2

    公开(公告)日:2011-01-18

    申请号:US11632516

    申请日:2005-07-15

    IPC分类号: G03H1/04 B24D15/10

    摘要: A method of producing a security document or article including a substrate (100), which is transparent at least to visible light, and a diffractive optical microstructure (112). The method includes applying an opacifying layer (102) to at least one surface of the transparent substrate (100). An area of the opacifying layer (102) is exposed to laser radiation (108) to ablate apertures (110) in selected portions of the opacifying layer (102), thereby forming a diffractive optical microstructure (112) on the surface of the substrate (100). The laser radiation may be patterned prior to exposing the opacifying layer (102), for example by passing the radiation through a mask (104). Alternatively, a focussed or collimated laser beam (206) may be directed onto the selected portions of the opacifying layer (102). Laser radiation may be directed onto the opacifying layer (102) either directly, or through the transparent substrate (100). Security documents or articles made in accordance with the method are also provided.

    摘要翻译: 一种制造安全文件或物品的方法,包括至少对可见光透明的基板(100)和衍射光学微结构(112)。 该方法包括将不透明层(102)施加到透明基板(100)的至少一个表面上。 不透明层(102)的区域暴露于激光辐射(108)以在不透明层(102)的选定部分中烧蚀孔(110),从而在基底表面上形成衍射光学微结构(112) 100)。 在暴露不透明层(102)之前,可以将激光辐射图案化,例如通过使辐射通过掩模(104)。 或者,聚焦或准直的激光束(206)可以被引导到不透明层(102)的选定部分上。 激光辐射可以直接或通过透明基底(100)引导到遮光层(102)上。 还提供了按照该方法制作的安全文件或物品。

    Methods of producing diffractive structures in security documents
    4.
    发明授权
    Methods of producing diffractive structures in security documents 有权
    在安全文件中生成衍射结构的方法

    公开(公告)号:US07790361B2

    公开(公告)日:2010-09-07

    申请号:US11183249

    申请日:2005-07-15

    IPC分类号: G03H1/02

    摘要: Various methods of producing a security document or article including a diffractive optical microstructure are disclosed. One method includes applying an opacifying layer (102) to at least one surface of a transparent substrate (100). An area of the opacifying layer (102) is exposed to laser radiation (108) to ablate apertures (110) in selected portions of the opacifying layer (102), thereby forming a diffractive optical microstructure (112) on the surface of the substrate (100). The laser radiation may be patterned prior to exposing the opacifying layer (102), for example by passing the radiation through a mask (104). Alternatively, a focussed or collimated laser beam (206) may be directed onto the selected portions of the opacifying layer (102). Laser radiation may be directed onto the opacifying layer (102) either directly, or through the transparent substrate (100). Security documents or articles made in accordance with the method are also provided.

    摘要翻译: 公开了生产包括衍射光学微结构的安全证件或制品的各种方法。 一种方法包括将不透明层(102)施加到透明基板(100)的至少一个表面。 不透明层(102)的区域暴露于激光辐射(108)以在不透明层(102)的选定部分中烧蚀孔(110),从而在基底表面上形成衍射光学微结构(112) 100)。 在暴露不透明层(102)之前,可以将激光辐射图案化,例如通过使辐射通过掩模(104)。 或者,聚焦或准直的激光束(206)可以被引导到不透明层(102)的选定部分上。 激光辐射可以直接或通过透明基底(100)引导到遮光层(102)上。 还提供了按照该方法制作的安全文件或物品。

    Method and Apparatus for Inspection of Security Articles
    6.
    发明申请
    Method and Apparatus for Inspection of Security Articles 失效
    检查安全用品的方法和装置

    公开(公告)号:US20080046199A1

    公开(公告)日:2008-02-21

    申请号:US10585506

    申请日:2005-01-10

    IPC分类号: G07D7/12

    CPC分类号: G07D7/0032

    摘要: A method and apparatus for inspection of a security article (10) is provided in which a substantially collimated light beam (15) from a point light source (14) is directed onto a diffractive optical projection element (DOE) (11). The light beam is transformed by the DOE (11) into a patterned beam (17) which is reconstructed to form a projected image at a particular position in space remote from the surface of the security article 910). An optical detection device 916) is located at which the patterned beam (17) is reconstructed to detect the projected image. The inspection method and apparatus may be used in equipment for handling, sorting, counting or otherwise processing security articles, in particular security documents such as banknotes. The apparatus may include a processor for generating a signal when the absence or poor quality of a DOE is detected and which is used to isolate or mark the security article.

    摘要翻译: 提供了一种用于检查安全物品(10)的方法和装置,其中来自点光源(14)的基本上准直的光束(15)被引导到衍射光学投影元件(DOE)(11)上。 光束被DOE(11)转换成图案化的光束(17),其被重构以在远离安全物体910的表面的空间中的特定位置处形成投影图像。 光学检测装置916)位于其上重建图案化束(17)以检测投影图像。 检查方法和装置可以用于处理,分类,计数或以其他方式处理安全物品的设备,特别是诸如纸币的安全文件。 该装置可以包括处理器,用于当检测到DOE的不存在或不良品质并且用于隔离或标记安全物品时产生信号。

    SECURITY DOCUMENT WITH INTEGRATED SECURITY DEVICE AND METHOD OF MANUFACTURE
    8.
    发明申请
    SECURITY DOCUMENT WITH INTEGRATED SECURITY DEVICE AND METHOD OF MANUFACTURE 审中-公开
    具有集成安全设备的安全文件及其制造方法

    公开(公告)号:US20130069360A1

    公开(公告)日:2013-03-21

    申请号:US13636656

    申请日:2011-03-24

    IPC分类号: B42D15/00

    摘要: A security document (1) is provided having a substrate (4) and an integral security device (10) which includes an image layer (12) and a focussing layer (11). each formed from a radiation curable ink layer embossed with relief formations (13; 15). The first radiation curable layer embossed with relief formations (13) to form the image layer (12) is provided on a first surface of the document, and the second radiation curable layer (11) embossed with focussing element relief formations (15) is provided on a second surface of the document. The first and second surfaces are separated by a predetermined distance D to produce a visible optical effect when viewing the image layer (12) through the focussing layer (11). In preferred embodiments, at least one of the first and second radiation curable layers is embossed with diffractive relief structures and high refractive index or reflective coatings may be applied to the embossed relief formations in the image layer (12) and/or the focussing layer (11). The invention allows security devices to be integrated in a security document, such as a banknote, in a cost-effective manner, without substantially increasing the thickness of the document.

    摘要翻译: 提供一种安全文件(1),其具有基板(4)和包括图像层(12)和聚焦层(11)的整体式安全装置(10)。 每个由由浮雕结构(13; 15)压花的可辐射固化油墨层形成。 在文件的第一表面上提供用浮雕结构(13)压印以形成图像层(12)的第一可辐射固化层,并且提供压印有聚焦元件释放结构(15)的第二可辐射固化层(11) 在文档的第二个表面上。 当通过聚焦层(11)观察图像层(12)时,第一和第二表面被隔开预定距离D以产生可见的光学效果。 在优选的实施方案中,第一和第二可辐射固化层中的至少一个用衍射浮雕结构压花,并且可以将高折射率或反射涂层施加到图像层(12)和/或聚焦层( 11)。 本发明允许安全设备以成本有效的方式集成在诸如钞票的安全文档中,而不会显着增加文档的厚度。

    SECURITY DOCUMENT INCORPORATING OPTICAL COMPONENT
    9.
    发明申请
    SECURITY DOCUMENT INCORPORATING OPTICAL COMPONENT 审中-公开
    安全文件包含光学组件

    公开(公告)号:US20100141881A1

    公开(公告)日:2010-06-10

    申请号:US12302974

    申请日:2007-05-25

    IPC分类号: G02F1/1337 C09K19/52 G02F1/13

    摘要: A security document or device is provided which incorporates one or more optical components. Each component includes at least one orientating layer, preferably a photo-orientated polymer network (PPN), and at least one liquid crystal polymer (LCP) layer, and either or both of the orientating layers and LCP layers include a cross-linker to improve the robustness of the document or device without detracting from the desired optical properties. Such a document or device can be authenticated using an external polariser, or using a polariser integral to the document or device itself.

    摘要翻译: 提供了包括一个或多个光学部件的安全文件或装置。 每个组分包括至少一个取向层,优选光取向的聚合物网络(PPN)和至少一个液晶聚合物(LCP)层,并且取向层和LCP层中的一个或两个包括交联剂以改善 文件或设备的鲁棒性,而不会降低所需的光学性能。 这样的文档或设备可以使用外部偏振器进行认证,或者使用对文档或设备本身集成的偏振器。

    METHOD AND APPARATUS FOR INSPECTION OF SECURITY ARTICLES INCORPORATING A DIFFRACTIVE OPTICAL PROJECTION ELEMENT
    10.
    发明申请
    METHOD AND APPARATUS FOR INSPECTION OF SECURITY ARTICLES INCORPORATING A DIFFRACTIVE OPTICAL PROJECTION ELEMENT 审中-公开
    检查投影光学投影元件的安全文章的方法和装置

    公开(公告)号:US20100091268A1

    公开(公告)日:2010-04-15

    申请号:US12635856

    申请日:2009-12-11

    IPC分类号: G06K9/74

    CPC分类号: G07D7/0032

    摘要: A method and apparatus for inspection of a security article (10) is provided in which a substantially collimated light beam (15) from a point light source (14) is directed onto a diffractive optical projection element (DOE) (11). The light beam is transformed by the DOE (11) into a patterned beam (17) which is reconstructed to form a projected image at a particular position in space remote from the surface of the security article 910). An optical detection device 916) is located at which the patterned beam (17) is reconstructed to detect the projected image. The inspection method and apparatus may be used in equipment for handling, sorting, counting or otherwise processing security articles, in particular security documents such as banknotes. The apparatus may include a processor for generating a signal when the absence or poor quality of a DOE is detected and which is used to isolate or mark the security article.

    摘要翻译: 提供了一种用于检查安全物品(10)的方法和装置,其中来自点光源(14)的基本上准直的光束(15)被引导到衍射光学投影元件(DOE)(11)上。 光束被DOE(11)转换成图案化的光束(17),其被重构以在远离安全物体910的表面的空间中的特定位置处形成投影图像。 光学检测装置916)位于其上重建图案化束(17)以检测投影图像。 检查方法和装置可以用于处理,分类,计数或以其他方式处理安全物品的设备,特别是诸如纸币的安全文件。 该装置可以包括处理器,用于当检测到DOE的不存在或不良品质并且用于隔离或标记安全物品时产生信号。