发明名称 |
DATA CARRIER HAVING A RECESS PRINTING MOTIF |
摘要 |
The invention relates to a data carrier (10) having a recess printing motif (12) that, when viewed with the naked eye, appears as a halftone image having a continuous tonal value progression, wherein the recess printing motif (12) comprises a plurality of fine, projecting printed lines (20) not resolvable by the naked eye that are modulated in the width and/or height thereof in order to produce the different tonal values of the halftone image. |
申请公布号 |
EP2203315(A1) |
申请公布日期 |
2010.07.07 |
申请号 |
EP20080801960 |
申请日期 |
2008.09.10 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
MEINDL, KLAUS;ADAMCZYK, ROGER;BALDUS, CHRISTOF;MAYER, KARLHEINZ;FRANZ, PETER |
分类号 |
B42D15/00;B41N1/06 |
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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