发明名称 |
DOCUMENT WITH A SECURITY DEVICE, PRINTING PLATE OR CYLINDER FOR APPLYING THE SECURITY DEVICE AND METHOD OF PRODUCING THE PRINTING PLATE OR CYLINDER |
摘要 |
<p>A security device comprises a first diffractive structure (3) which generates a first, diffractive image or images (3A-3C) in response to incident radiation; and a second, surface relief and/or printed structure (4), having a coarser resolution than the first diffractive structure (3). The second structure (4) generates or presents a second, non-diffractive image visible in response to incident radiation, wherein the first and second images complement one another and are located relative to one another so as to define a composite representation.</p> |
申请公布号 |
EP1706280(B1) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20050701934 |
申请日期 |
2005.01.19 |
申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
STONE, DAVID ALLEN;WILLIAMS, WENDY VICTORIA;BRATCHLEY, ROBIN |
分类号 |
B42D15/00;B41C1/00;B41C1/02;B41M3/12;B41M3/14 |
主分类号 |
B42D15/00 |
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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