Security Device Based on Customized Microprism Film
    3.
    发明申请
    Security Device Based on Customized Microprism Film 有权
    基于定制微棱镜的安全装置

    公开(公告)号:US20080231976A1

    公开(公告)日:2008-09-25

    申请号:US11883574

    申请日:2006-03-07

    IPC分类号: G02B5/04

    摘要: A security device comprises at least two regions, each region comprising a prismatic surface structure defining an array of substantially planar facets. Each region forms a reflector due to total internal reflection when viewed at least one first viewing angle and is transparent when viewed at least one second viewing angle. The said at least one first viewing angle of one region is different from the at least one first viewing angle of the other region. Furthermore, a security device comprising an asymmetrical or truncated prismatic surface structure is located in a transparent area of an article.

    摘要翻译: 安全装置包括至少两个区域,每个区域包括限定基本平坦的面的阵列的棱镜表面结构。 当观看至少一个第一视角时,每个区域由于全内反射而形成反射器,并且当观看至少一个第二视角时是透明的。 一个区域的所述至少一个第一视角与另一个区域的至少一个第一视角不同。 此外,包括不对称或截头棱镜表面结构的安全装置位于制品的透明区域中。

    Security device based on customized microprism film
    5.
    发明授权
    Security device based on customized microprism film 有权
    基于定制微棱镜的安全装置

    公开(公告)号:US07903308B2

    公开(公告)日:2011-03-08

    申请号:US11883574

    申请日:2006-03-07

    IPC分类号: G03H1/00

    摘要: A security device comprises at least two regions, each region comprising a prismatic surface structure defining an array of substantially planar facets. Each region forms a reflector due to total internal reflection when viewed at least one first viewing angle and is transparent when viewed at at least one second viewing angle. The said at least one first viewing angle of one region is different from the at least one first viewing angle of the other region.

    摘要翻译: 安全装置包括至少两个区域,每个区域包括限定基本平坦的面的阵列的棱镜表面结构。 每个区域在观看至少一个第一视角时由于全内反射形成反射体,并且在至少一个第二视角观看时是透明的。 一个区域的所述至少一个第一视角与另一个区域的至少一个第一视角不同。