发明名称 |
Method of generating a security design with the aid of electronic means |
摘要 |
The grid of parallel lines is generated with the aid of computer graphics giving a specific ratio of the line width (lo) to the periodicity (do). The background thus created is then varied by respacing in accordance with a modulation function having preselected parameters. Finally the line width is adjusted so that its ratio to the interline spacing reverts to the original value. The initially straight lines may also become curved and a pseudo-relief image may be created by erasure of those parts of the lines which lie within its contours. |
申请公布号 |
AU3286695(A) |
申请公布日期 |
1996.05.09 |
申请号 |
AU19950032866 |
申请日期 |
1995.09.26 |
申请人 |
DE LA RUE GIORI S.A. |
发明人 |
LAN GUEX;LAURENT MATHYS |
分类号 |
G03G21/04;B41M3/14;B42D15/00;B42D25/342;G07D7/12 |
主分类号 |
G03G21/04 |
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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