发明名称 |
Printed device with three dimensional appearance |
摘要 |
The present invention is related to a device useful as a security element comprising first and second LC ink layers representing a graphical object exhibiting, when observed with an appropriate viewing equipment, a three-dimensional appearance, wherein one of said ink layers shows a first colour at a certain viewing angle and is a left-handed circularly polarizing coating or comprises left-handed circularly polarizing pigment, and the other of said ink layers shows the same or another colour at said viewing angle and is a right-handed circularly polarizing coating or comprises right-handed circularly polarizing pigment, said first and second LC ink layers representing a first and a second image corresponding to a pair of stereoscopic projections of said object, characterized in that said first and second images are composed of separate building blocks which are superimposed or can be superimposed. |
申请公布号 |
EP2529940(B1) |
申请公布日期 |
2013.05.22 |
申请号 |
EP20110168298 |
申请日期 |
2011.05.31 |
申请人 |
SICPA HOLDING SA |
发明人 |
LEFEBVRE, OLIVIER;DEGOTT, PIERRE;DEMANGE, RAYNALD;PIETROLUNGO, NICOLAS |
分类号 |
B41M3/00;B41M3/06;B42D15/00;B42D15/10;B44F7/00;G02B5/30;G02B27/22 |
主分类号 |
B41M3/00 |
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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