发明名称 |
SECURITY DOCUMENT CONTAINING AN AUTHENTICATION DEVICE |
摘要 |
A flexible security document is provided which contains an authentication device including: a) source of electrical potential (5), the source including a piezoelectric polymeric material including at least one terpolymer of vinylidene fluoride (VDF), trifluoroethylene (TrFE) and a halogenated ethylene based monomer containing at least one non-fluorine halogen atom, the source of electrical potential being activated by mechanical deformation; b) reporter element (3) including a material capable of switching electrically between a first state and a second state, the difference between the first state and the second state being able to be perceived by an unaided human; and c) conducting elements (8) electrically connecting the source of electrical potential and the reporter element to produce an electric circuit. The reporter element (3) may take a number of different forms, such as a light emitting device which lights up or undergoes colour change when activated by the source of electrical potential to provide an indication of authenticity. In a particularly preferred embodiment, the flexible security document is a banknote and the source of electrical potential is applied by printing. |
申请公布号 |
WO2008040056(A1) |
申请公布日期 |
2008.04.10 |
申请号 |
WO2007AU01472 |
申请日期 |
2007.10.04 |
申请人 |
NOTE PRINTING AUSTRALIA LIMITED;JACKSON, WAYNE, KEVIN;BAUER, FRANCOIS |
发明人 |
JACKSON, WAYNE, KEVIN;BAUER, FRANCOIS |
分类号 |
B42D15/10;G07D7/182 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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