Identification medium and identification method therefor
    1.
    发明授权
    Identification medium and identification method therefor 有权
    识别介质及其识别方法

    公开(公告)号:US08970953B2

    公开(公告)日:2015-03-03

    申请号:US13509916

    申请日:2010-11-12

    摘要: An identification medium is provided in which latent image having plural colors can be observed even when the identification medium is spaced away from a polarization filter. A cholesteric liquid crystal layer is provided as a specific polarization light reflection layer which reflects light having a specific polarized condition. An optical anisotropic layer having an optical anisotropy is provided at an upper position overlapping with the specific polarization light reflection layer. An image A fanned by an area having an optical anisotropy different from that of surroundings is formed at the optical anisotropic layer. When the identification medium is directly viewed, the influence of the optical anisotropy cannot be seen. When the identification medium is observed via a circular polarization filter, the image can be seen to have a specific color by the influence of the optical anisotropy.

    摘要翻译: 提供了一种识别介质,其中即使当识别介质与偏振滤光器隔离时,也可以观察到具有多种颜色的潜像。 提供胆甾型液晶层作为反射具有特定偏振条件的光的特定偏振光反射层。 具有光学各向异性的光学各向异性层设置在与特定偏振光反射层重叠的上部位置。 在光学各向异性层处形成由具有与周围环境不同的光学各向异性的区域扇形的图像A. 当直接观察识别介质时,不能看到光学各向异性的影响。 当通过圆偏振滤光器观察识别介质时,可以通过光学各向异性的影响看到图像具有特定的颜色。

    IDENTIFICATION MEDIUM AND IDENTIFICATION METHOD THEREFOR
    2.
    发明申请
    IDENTIFICATION MEDIUM AND IDENTIFICATION METHOD THEREFOR 有权
    识别媒体及其识别方法

    公开(公告)号:US20120236292A1

    公开(公告)日:2012-09-20

    申请号:US13509916

    申请日:2010-11-12

    IPC分类号: G02F1/1335 G06K9/76

    摘要: An identification medium is provided in which latent image having plural colors can be observed even when the identification medium is spaced away from a polarization filter. A cholesteric liquid crystal layer is provided as a specific polarization light reflection layer which reflects light having a specific polarized condition. An optical anisotropic layer having an optical anisotropy is provided at an upper position overlapping with the specific polarization light reflection layer. An image A formed by an area having an optical anisotropy different from that of surroundings is formed at the optical anisotropic layer. When the identification medium is directly viewed, the influence of the optical anisotropy cannot be seen. When the identification medium is observed via a circular polarization filter, the image can be seen to have a specific color by the influence of the optical anisotropy.

    摘要翻译: 提供了一种识别介质,其中即使当识别介质与偏振滤光器隔离时,也可以观察到具有多种颜色的潜像。 提供胆甾型液晶层作为反射具有特定偏振条件的光的特定偏振光反射层。 具有光学各向异性的光学各向异性层设置在与特定偏振光反射层重叠的上部位置。 在光学各向异性层处形成由具有与周围环境不同的光学各向异性的区域形成的图像A. 当直接观察识别介质时,不能看到光学各向异性的影响。 当通过圆偏振滤光器观察识别介质时,可以通过光学各向异性的影响看到图像具有特定的颜色。

    Medium for identifying matter to be identified and method for production thereof
    3.
    发明授权
    Medium for identifying matter to be identified and method for production thereof 失效
    用于识别要识别的物质的介质及其生产方法

    公开(公告)号:US06740431B2

    公开(公告)日:2004-05-25

    申请号:US10168192

    申请日:2002-06-19

    IPC分类号: B41M312

    摘要: In an identification medium for identifying an authenticity of an object either visually or optically by using an identification device, high polymer cholesteric liquid crystal is applied onto the object, onto a sticker adapted to be affixed to the object or onto a base for hot stamping onto the object, and the high polymer cholesteric liquid crystal is patterned, and/or a graphic representation layer such as a figure and letter is formed under or over the high polymer cholesteric liquid crystal to enhance the aesthetic quality of the identification medium or the object, and improve the capability to identify and prevent forgery.

    摘要翻译: 在通过使用识别装置以目视或光学方式识别物体的真实性的识别介质中,将高分子胆固醇液晶施加到物体上,贴到适于固定到物体上的贴纸上或用于热冲压的基座上 该目的和高分子胆固醇液晶被图案化,和/或在高分子量胆甾醇型液晶之下或之上形成诸如图形和字母的图形表示层以提高识别介质或物体的美观质量, 并提高识别和防止伪造的能力。

    Optical identification system using cholesteric liquid crystals
    5.
    发明授权
    Optical identification system using cholesteric liquid crystals 失效
    使用胆固醇液晶的光学识别系统

    公开(公告)号:US6061122A

    公开(公告)日:2000-05-09

    申请号:US123512

    申请日:1998-07-28

    摘要: Provided is an economical identification system suitable for use on commercial products which is difficult to duplicate, and highly identifiable. The system includes an identification medium having a high-polymer cholesteric liquid crystal material applied thereon. The high-polymer cholesteric liquid crystals selectively reflect a certain wavelength, and this wavelength changes with the change in the incident angle of the light. The liquid crystals also have the property to circularly polarize the reflected light in either sense. By taking advantages of such properties, it is possible to provide a highly identifiable structure which, however, is highly difficult to illicitly duplicate. In particular, by forming the reflective layer of a hologram with high-polymer cholesteric liquid crystals, the hologram can be used as an identification medium which is highly difficult to duplicate but easy to identify with a machine.

    摘要翻译: 提供了一种适用于难以复制和高度识别的商业产品的经济识别系统。 该系统包括其上施加有高分子胆固醇液晶材料的识别介质。 高分子胆固醇液晶选择性地反射一定的波长,并且该波长随着光的入射角的变化而变化。 液晶也具有在任何意义上使反射光圆偏振的性质。 通过利用这些性质,可以提供一种高度可辨认的结构,然而,它非常难以非法复制。 特别地,通过用高分子胆固醇液晶形成全息图的反射层,全息图可以用作识别介质,其难以复制,但易于用机器识别。

    Identification medium
    6.
    发明授权
    Identification medium 有权
    识别介质

    公开(公告)号:US09298036B2

    公开(公告)日:2016-03-29

    申请号:US14006038

    申请日:2012-03-08

    摘要: In an identification medium, switching of images can be clearly observed, and the medium has a structure produced at low cost. The structure comprises a cholesteric liquid crystal layer 102 in which a hologram is formed, and which selectively reflects circularly polarized light of a specific rotating direction of a specific central wavelength, a cholesteric liquid crystal layer reflecting the entire range of visible light 105 which has reflection characteristics equivalent to a case of reflecting the entire range of visible light and which reflects circularly polarized light of the same rotating direction as the circularly polarized light reflected from the cholesteric liquid crystal layer 102, and a display pattern 106 having a specific content displayed, arranged in this order, as seen from the side of observation.

    摘要翻译: 在识别介质中,可以清楚地观察图像的切换,并且介质具有以低成本生产的结构。 该结构包括其中形成全息图并选择性地反射特定中心波长的特定旋转方向的圆偏振光的胆甾醇型液晶层102,反射具有反射的可见光105的整个范围的胆甾醇型液晶层 相当于反射整个可见光范围并反射与从胆甾型液晶层102反射的圆偏振光相同的旋转方向的圆偏振光的情况的特征,以及显示具有特定内容的显示图案106 从这个顺序来看,从观察的一边看。

    IDENTIFICATION MEDIUM
    7.
    发明申请
    IDENTIFICATION MEDIUM 有权
    识别媒体

    公开(公告)号:US20140022493A1

    公开(公告)日:2014-01-23

    申请号:US14006038

    申请日:2012-03-08

    IPC分类号: G02F1/1335 G02F1/1334

    摘要: In an identification medium, switching of images can be clearly observed, and the medium has a structure produced at low cost. The structure comprises a cholesteric liquid crystal layer 102 in which a hologram is formed, and which selectively reflects circularly polarized light of a specific rotating direction of a specific central wavelength, a cholesteric liquid crystal layer reflecting the entire range of visible light 105 which has reflection characteristics equivalent to a case of reflecting the entire range of visible light and which reflects circularly polarized light of the same rotating direction as the circularly polarized light reflected from the cholesteric liquid crystal layer 102, and a display pattern 106 having a specific content displayed, arranged in this order, as seen from the side of observation.

    摘要翻译: 在识别介质中,可以清楚地观察图像的切换,并且介质具有以低成本生产的结构。 该结构包括其中形成全息图并选择性地反射特定中心波长的特定旋转方向的圆偏振光的胆甾醇型液晶层102,反射具有反射的可见光105的整个范围的胆甾醇型液晶层 相当于反射整个可见光范围并反射与从胆甾型液晶层102反射的圆偏振光相同的旋转方向的圆偏振光的情况的特征,以及显示具有特定内容的显示图案106 从这个顺序来看,从观察的一边看。

    System for optically identifying an object
    8.
    发明授权
    System for optically identifying an object 有权
    用于光学识别物体的系统

    公开(公告)号:US06301047B1

    公开(公告)日:2001-10-09

    申请号:US09440683

    申请日:1999-11-16

    IPC分类号: G02B2744

    摘要: The object to be identified is affixed with an identification medium comprising a reflective layer consisting of a reflective hologram or diffraction grating. The high polymer cholesteric liquid crystal provides an inexpensive identification medium, and the use of the second light receiving unit for providing a reference signal provides a high S/N output signal which is highly distinct and resistant to the contamination of the identification medium. Also, the elimination of the need for expensive optical elements such as beam splitters also contributes to the reduction of cost.

    摘要翻译: 要识别的对象被附加有包括由反射全息图或衍射光栅组成的反射层的识别介质。 高分子胆固醇液晶提供廉价的识别介质,并且使用第二光接收单元提供参考信号提供高S / N输出信号,其高度不同,并且能够抵抗识别介质的污染。 此外,消除对昂贵光学元件(例如分束器)的需要也有助于降低成本。