| 发明名称 |
Optically variable security device |
| 摘要 |
An optically variable security device comprising a thin film reflection filter structure (23) which exhibits a first optically variable effect; and a relief structure (20) on or in the thin film reflection filter structure which exhibits a second optically variable effect. |
| 申请公布号 |
AU6620901(A) |
申请公布日期 |
2002.01.08 |
| 申请号 |
AU20010066209 |
申请日期 |
2001.06.27 |
| 申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
RALPH KAY;BRIAN WILLIAM HOLMES;KENNETH JOHN DRINKWATER |
| 分类号 |
B42D15/10 |
主分类号 |
B42D15/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
