发明名称 |
METHOD OF GENERATING A SECURITY DESIGN WITH THE AID OF ELECTRONIC MEANS |
摘要 |
A net of parallel lines is generated with the aid of a computer. The ratio of the width to the spacing of two consecutive lines is equal to r0. The spacing and width of the lines are successively modulated such that their ratio is equal to r0. Subsequently, the straight lines can if so chosen be transformed into differently shaped lines or the width of the strokes can be altered in order to reproduce geometrical or artistic images. |
申请公布号 |
CA2159414(A1) |
申请公布日期 |
1996.05.02 |
申请号 |
CA19952159414 |
申请日期 |
1995.09.28 |
申请人 |
DE LA RUE GIORI S.A. |
发明人 |
GUEX, LAN;MATHYS, LAURENT |
分类号 |
G03G21/04;B41M3/14;B42D15/00;B42D25/342;G07D7/12 |
主分类号 |
G03G21/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|