FIELD: physics.
SUBSTANCE: data medium has a base in which a see-through portion is formed by line grid consisting of a plurality of parallel cutting lines. Inside the see-through portion, there is a motif region which is in form of a pattern, characters or code which looks different when viewed in reflected and/or incident light.
EFFECT: solution improves protection of a document from forgery.
31 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MARKED DATA CARRIER | 2011 |
|
RU2588446C2 |
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|
RU2520073C1 |
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|
RU2464177C2 |
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|
RU2503547C2 |
| ELEMENT OF PROTECTION AND METHOD OF ITS MAKING | 2006 |
|
RU2412824C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2007 |
|
RU2424909C2 |
| DATA CARRIER HAVING WINDOW | 2010 |
|
RU2499674C1 |
| SECURITY ELEMENT WITH COMPUTER-READABLE CODE | 2009 |
|
RU2527757C2 |
| DATA CARRIER HAVING SECURITY FEATURE AND METHOD OF MAKING SAID CARRIER | 2005 |
|
RU2384884C2 |
| DATA MEDIUM WITH PRINTED MAGNETIC PROTECTIVE FEATURE WITH DIFFERENT MAGNETISATION | 2009 |
|
RU2498906C2 |
