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    OPTICAL READING DEVICE, OPTICAL READING METHOD, AND PROGRAM
    2.
    发明申请
    OPTICAL READING DEVICE, OPTICAL READING METHOD, AND PROGRAM 审中-公开
    光学读取装置，光学读取方法和程序

    公开(公告)号：US20150069128A1

    公开(公告)日：2015-03-12

    申请号：US14394894

    申请日：2013-03-11

    Applicant: NHK SPRING CO., LTD.

    Inventor： Hidekazu Hoshino ,  Itsuo Takeuchi ,  Shinsuke Yoshida ,  Seiya Shibuya ,  Tohru Ida ,  Syuhei Okubo

    IPC: G06K7/10 ,  G03H1/00

    CPC classification number: G06K7/1094 ,  B42D25/29 ,  B42D25/328 ,  B42D25/364 ,  B42D2033/26 ,  G02B27/021 ,  G03H1/0011

    Abstract: An optical reading device authenticates an identification medium with cholesteric liquid crystal layer, having a structure in which no movable parts are necessary for switching circular circularly polarized light filter. The optical reading device reads an image from an identification medium having a cholesteric liquid crystal layer having a hologram processed, and an ink printed pattern layer in this order, and the device includes a light emitting part in which a right circularly polarized light filter is arranged in front of an LED, a light emitting part in which a right circularly polarized light filter is arranged in front of an LED, and a controlling part which switches light emission between the light emitting parts.

    Abstract translation: 光学读取装置认证具有胆甾醇型液晶层的识别介质，其具有不需要可移动部件来切换圆形圆偏振光滤光器的结构。 光学读取装置从具有全息图处理的胆甾型液晶层的识别介质和墨水印刷图案层依次读取图像，并且该装置包括其中布置有右圆偏振滤光器的发光部分 在LED的前方，在LED的前方配置有右圆偏光滤光器的发光部，以及在发光部之间切换发光的控制部。

    Discrimination medium and production method therefor
    3.
    发明授权
    Discrimination medium and production method therefor 有权
    歧视媒介及其制作方法

    公开(公告)号：US08749750B2

    公开(公告)日：2014-06-10

    申请号：US13838808

    申请日：2013-03-15

    Applicant: NHK Spring Co., Ltd.

    Inventor： Hidekazu Hoshino ,  Tokio Sakauchi ,  Mutsumi Sasaki ,  Tohru Ida ,  Naomi Iida

    IPC: G09F3/03

    CPC classification number: G03H1/0011 ,  B42D25/328 ,  B42D25/364 ,  B42D25/391 ,  B42D25/45 ,  B42D2033/26 ,  G03H1/02 ,  G03H1/0244 ,  G03H1/0252 ,  G03H1/0272 ,  G03H2250/38 ,  G03H2250/40 ,  G03H2250/41

    Abstract: A discrimination medium, which can have much information, can be produced on a small scale at low cost, and enables change of a sticker design at low cost, is provided. The discrimination medium includes an optically transparent first substrate on which a cholesteric liquid crystal layer is formed, the cholesteric liquid crystal layer being formed with a fine asperity used for displaying a hologram, an optically transparent second substrate on which a print layer is formed, the print layer having a predetermined pattern made of ink and having a transparent portion without the ink of the pattern around the pattern, the pattern reflecting or absorbing a light of a predetermined wavelength, and a transparent adhesive layer, wherein the optically transparent first substrate, the optically transparent second substrate, and the transparent adhesive layer, are disposed in turn from a side checked visually.

    Abstract translation: 可以以低成本小规模生产可以具有大量信息的歧视媒体，并且能够以低成本改变贴纸设计。 识别介质包括其上形成有胆甾型液晶层的光学透明的第一基板，胆甾醇型液晶层形成为具有用于显示全息图的细微凹凸，其上形成有印刷层的光学透明的第二基板， 印刷层，其具有由油墨制成的预定图案，并且具有透明部分而不具有围绕图案的图案的墨，反射或吸收预定波长的光的图案和透明粘合剂层，其中光学透明的第一基板， 光学透明的第二基板和透明粘合剂层从目视检查的一侧依次布置。

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