![SECURITY DEVICES](/abs-image/US/2015/06/04/US20150151562A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: SECURITY DEVICES
- 专利标题(中):安全设备
- 申请号:US14412058 申请日:2013-07-05
- 公开(公告)号:US20150151562A1 公开(公告)日:2015-06-04
- 发明人: Robert Whiteman , Alice Smith , Adam Lister
- 申请人: DE LA RUE INTERNATIONAL LIMITED
- 优先权: GB1212046.5 20120706
- 国际申请: PCT/GB2013/051784 WO 20130705
- 主分类号: B42D25/351
- IPC分类号: B42D25/351
摘要:
A security device is provided including a first pattern of elements and a second, overlapping, pattern of elements spaced by a transparent layer, the first and second patterns in combination obstructing the passage of light transmitted to a viewer through the device to a varying degree depending on the viewing position. The first and second patterns of elements are configured such that a first region of the device exhibits a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a first tilt axis, and a second region of the device exhibits a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a second tilt axis which is not parallel to the first tilt axis.
摘要(中):
提供了一种安全装置,包括元件的第一图案和由透明层间隔开的第二重叠图案元件,第一和第二图案组合阻碍透过装置的观察者通过不同程度的依赖于 在观看位置。 元件的第一和第二图案被构造成使得当装置相对于观看者围绕第一倾斜轴线倾斜时,装置的第一区域呈现阻塞程度的最大变化,并且装置的第二区域呈现出 当装置相对于观察者围绕不平行于第一倾斜轴线的第二倾斜轴线倾斜时,阻塞程度的最大变化。
公开/授权文献:
- US09902186B2 Security devices 公开/授权日:2018-02-27