利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.021 秒)

    Method of producing diffractive structures in security documents
    1.
    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

    申请人： Joshua Robert Nemeth ,  Gary Fairless Power ,  Robert Stewart

    发明人： Joshua Robert Nemeth ,  Gary Fairless Power ,  Robert Stewart

    IPC分类号： G03H1/04 ,  B24D15/10

    CPC分类号： B42D25/435 ,  B41M3/14 ,  B41M5/24 ,  B42D25/00 ,  B42D25/23 ,  B42D25/309 ,  B42D25/313 ,  B42D25/328 ,  G03H1/0011 ,  G03H1/02 ,  G03H2001/0292 ,  G03H2001/0478 ,  G03H2224/06 ,  G03H2250/33 ,  G03H2260/62 ,  Y10S430/146

    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。

    Volume holograms in transparent materials
    2.
    发明授权
    Volume holograms in transparent materials 失效
    体积全息图在透明材料

    公开(公告)号：US06873444B1

    公开(公告)日：2005-03-29

    申请号：US10069253

    申请日：2000-08-07

    申请人： Nikolay Nikolaevich Guletsky ,  Vladimir Yurevich Dmitriev ,  Sergey Viktorovich Oshemkov

    发明人： Nikolay Nikolaevich Guletsky ,  Vladimir Yurevich Dmitriev ,  Sergey Viktorovich Oshemkov

    IPC分类号： G03H1/08

    CPC分类号： G03H1/08 ,  G03H2001/0478 ,  G03H2001/0484 ,  G03H2260/62 ,  Y10S359/90

    摘要： This invention discloses a method of producing, in a solid transparent material (3), a hologram of an object; the method includes the steps of: developing a three-dimensional mathematical model of an electro-magnetic field emanating from the object, the field producing an image of the object; computing a corresponding three-dimensional set of points, light scattered from which reconstructs the field; and focusing a pulsed laser beam into the solid transparent material onto each of the points sequentially, the beam being capable, when focused, of causing optical breakdown in the solid transparent material.

    摘要翻译： 本发明公开了一种在固体透明材料（3）中制造物体的全息图的方法; 该方法包括以下步骤：开发从对象发出的电磁场的三维数学模型，产生对象的图像的场; 计算相应的三维点集，其中散射的光重建场; 并且将脉冲激光束依次聚焦到每个点上的固体透明材料中，所述光束在聚焦时能够在固体透明材料中引起光学击穿。

    Method for production of laser-induced damage images with special characteristics by creating damages of special space shape
    3.
    发明授权
    Method for production of laser-induced damage images with special characteristics by creating damages of special space shape 失效
    通过创建特殊空间形状的损伤来生产具有特殊特性的激光诱发损伤图像的方法

    公开(公告)号：US06768080B2

    公开(公告)日：2004-07-27

    申请号：US10016013

    申请日：2001-12-17

    申请人： Igor Troitski

    发明人： Igor Troitski

    IPC分类号： B23K2600

    CPC分类号： G03H1/0248 ,  B23K26/361 ,  B23K26/53 ,  B41M5/265 ,  B41M5/267 ,  B44C1/228 ,  B44F1/06 ,  B44F1/10 ,  B44F1/14 ,  G03H2001/026 ,  G03H2001/0478 ,  G03H2001/0484 ,  G03H2224/06 ,  G03H2260/62

    摘要： A method for production of laser-induced damage images, which are able to change their optical characteristics depending on bopresight allocation and which are looked like iridescent images laying out white light incident upon them. These images are created by laser-induced damages of special space form. These damages are produced by creation of two areas (the first and the second) surrounding the pre-set points: the first area is essentially large than the second area, having form like desirable damage. The pulse laser radiation creates under critical electron density in the first area and initiates the breakdown in the second area.

    摘要翻译： 一种用于生产激光诱发的损伤图像的方法，其能够根据视觉分配改变其光学特性，并且看起来像布置出其上的白光的虹彩图像。 这些图像是通过激光诱发的特殊空间形式的损坏创建的。 这些损害是通过创建围绕预设点的两个区域（第一个和第二个）产生的：第一个区域基本上大于第二个区域，具有形状像所需的损坏。 脉冲激光辐射在第一区域的临界电子密度下产生，并且在第二区域中启动击穿。

    Method for production of laser-induced damage images with special characteristics by creating damages of special space shape
    6.
    发明申请
    Method for production of laser-induced damage images with special characteristics by creating damages of special space shape 失效
    通过创建特殊空间形状的损伤来生产具有特殊特性的激光诱发损伤图像的方法

    公开(公告)号：US20030111446A1

    公开(公告)日：2003-06-19

    申请号：US10016013

    申请日：2001-12-17

    发明人： Igor Troitski

    IPC分类号： B23K026/00

    CPC分类号： G03H1/0248 ,  B23K26/361 ,  B23K26/53 ,  B41M5/265 ,  B41M5/267 ,  B44C1/228 ,  B44F1/06 ,  B44F1/10 ,  B44F1/14 ,  G03H2001/026 ,  G03H2001/0478 ,  G03H2001/0484 ,  G03H2224/06 ,  G03H2260/62

    摘要： A method for production of laser-induced damage images, which are able to change their optical characteristics depending on bopresight allocation and which are looked like iridescent images laying out white light incident upon them. These images are created by laser-induced damages of special space form. These damages are produced by creation of two areas (the first and the second) surrounding the pre-set points: the first area is essentially large than the second area, having form like desirable damage. The pulse laser radiation creates under critical electron density in the first area and initiates the breakdown in the second area.

    摘要翻译： 一种用于生产激光诱发的损伤图像的方法，其能够根据视觉分配改变其光学特性，并且看起来像布置出其上的白光的虹彩图像。 这些图像是通过激光诱发的特殊空间形式的损坏创建的。 这些损害是通过创建围绕预设点的两个区域（第一个和第二个）产生的：第一个区域基本上大于第二个区域，具有形状像所需的损坏。 脉冲激光辐射在第一区域的临界电子密度下产生，并且在第二区域中启动击穿。

    Hologram production technique
    7.
    发明授权
    Hologram production technique 有权

    公开(公告)号：US06567193B2

    公开(公告)日：2003-05-20

    申请号：US10008193

    申请日：2001-11-06

    申请人： Brian J. Monaghan ,  Anthony W. Heath

    发明人： Brian J. Monaghan ,  Anthony W. Heath

    IPC分类号： G03H104

    CPC分类号： G03H1/30 ,  G03H1/0476 ,  G03H1/0891 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2260/62

    摘要： A system for forming holographic pixels on the surface of a workpiece is disclosed. The system comprises a laser generating a laser beam; a beam splitter dividing the laser beam into a first beam and a second beam; a controller providing as output at least one control signal; and at least one beam deflector receptive of the first and second laser beams guiding the first and second laser beams along different paths to a prescribed pixel location on the surface of the workpiece, thereby combining the first and second laser beams at a prescribed azimuthal direction and included angle. At least one beam deflector is receptive of the at least one control signal thereby controllably deflecting at least one of the first laser beam and the second laser beam to the prescribed pixel location.

    Laser engraved verification hologram and associated methods
    9.
    发明授权
    Laser engraved verification hologram and associated methods 失效
    激光雕刻验证全息图及相关方法

    公开(公告)号：US5331443A

    公开(公告)日：1994-07-19

    申请号：US923834

    申请日：1992-07-31

    申请人： Joseph J. Stanisci

    发明人： Joseph J. Stanisci

    IPC分类号： B42D15/10 ,  G03H1/02 ,  G03H1/18 ,  G02B5/18

    CPC分类号： G03H1/18 ,  B42D25/328 ,  B42D25/43 ,  G03H1/0011 ,  G03H1/0236 ,  G03H1/0244 ,  G03H1/028 ,  G03H2001/184 ,  G03H2001/187 ,  G03H2001/188 ,  G03H2210/54 ,  G03H2260/62

    摘要： A method for increasing the authentication effect of a verification hologram to be affixed to a protected document includes laser etching individualized indicia into the reflective layer of each hologram produced en masse on a moving, continuous web. The laser is finely focused and guided by a computer which records the data used to form the selected indicia, such data being referenced for comparison to provide verification of authenticity upon presentation by a bearer. In one embodiment, the data used to create the indicia is generated by a computer program which may include a random number generator.

    摘要翻译： 一种用于增加待贴在受保护文件上的验证全息图的认证效果的方法包括将个体化标记激光刻蚀成在移动的连续卷材上大量生产的每个全息图的反射层。 激光被精细地聚焦并由记录用于形成所选择的标记的数据的计算机引导，这样的数据被参考用于比较，以在由承载呈现时提供对真实性的验证。 在一个实施例中，用于创建标记的数据由可包括随机数发生器的计算机程序产生。