| 发明名称 |
SECURITY DEVICE. |
| 摘要 |
A security device is disclosed having a region of piezochromic material (102) and an integrated relief structure (103). The security device is arranged such that when a stress is generated in the piezochromic material and relief structure, an optical effect is generated in the piezochromic material. |
| 申请公布号 |
MX2011010742(A) |
申请公布日期 |
2012.01.30 |
| 申请号 |
MX20110010742 |
申请日期 |
2010.04.13 |
| 申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
ROBERT WHITEMAN;CHRISTOPHER JOHN EASTELL |
| 分类号 |
B42D15/00;B42D15/10;G02B1/00 |
主分类号 |
B42D15/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
