Optical authentication
    1.
    发明公开
    Optical authentication 审中-公开
    光学认证

    公开(公告)号:EP2175396A3

    公开(公告)日:2010-08-11

    申请号:EP10150648.3

    申请日:2006-12-22

    摘要: An apparatus may be provided for determining a signature from an article in a reading volume of the apparatus. The apparatus can comprise a source operable to generate a coherent beam and a beam directing member operable to direct the coherent beam into the reading volume. The apparatus may also comprise a detector arrangement for collecting signals created by scatter of the coherent beam within the reading volume, wherein different ones of the signals relate to scatter from different parts of the reading volume, the detector arrangement having a numerical aperture greater than a predetermined minimum and a processor operable to determine a signature for an article in the reading volume from the collected signals. Use of such apparatus can be repeated whenever required to test authenticity of the article. Using this system, it has been discovered that it is essentially pointless to go to the effort and expense of making specially prepared tokens, since unique characteristics are measurable in a straightforward manner from a wide variety of every day articles.

    Optical authentication
    2.
    发明公开
    Optical authentication 审中-公开
    Optische Authentifizierung

    公开(公告)号:EP2175396A2

    公开(公告)日:2010-04-14

    申请号:EP10150648.3

    申请日:2006-12-22

    IPC分类号: G06K9/52 G06K9/00

    摘要: An apparatus may be provided for determining a signature from an article in a reading volume of the apparatus. The apparatus can comprise a source operable to generate a coherent beam and a beam directing member operable to direct the coherent beam into the reading volume. The apparatus may also comprise a detector arrangement for collecting signals created by scatter of the coherent beam within the reading volume, wherein different ones of the signals relate to scatter from different parts of the reading volume, the detector arrangement having a numerical aperture greater than a predetermined minimum and a processor operable to determine a signature for an article in the reading volume from the collected signals. Use of such apparatus can be repeated whenever required to test authenticity of the article. Using this system, it has been discovered that it is essentially pointless to go to the effort and expense of making specially prepared tokens, since unique characteristics are measurable in a straightforward manner from a wide variety of every day articles.

    摘要翻译: 可以提供用于确定来自装置的读取体积中的物品的签名的装置。 该装置可以包括可操作以产生相干光束的光源和可操作以将相干光束引导到读取体积中的光束引导部件。 该装置还可以包括检测器装置,用于收集通过在读取体积内的相干光束散射而产生的信号,其中不同的信号涉及从读取体积的不同部分的散射,检测器装置的数值孔径大于 预定最小值和可操作以从所收集的信号确定读取卷中的物品的签名的处理器。 当需要测试物品的真实性时,可以重复使用这种装置。 使用这个系统,已经发现,由于独特的特征可以从各种各样的每一天的文章中以直接的方式测量,所以去做特别准备的令牌的努力和费用本质上是毫无意义的。