发明名称 |
The title is not available |
摘要 |
<p>An optically variable surface pattern ( 1 ) contains relief structures ( 9.1; 9.2; 9.3 ) for producing at least two representations ( 2; 3; 4 ). The relief structures ( 9.1; 9.2; 9.3 ) have a period length (L) of at least five micrometers and are sawtooth-shaped. The relief structures ( 9.1; 9.2; 9.3 ) associated with different representations ( 2; 3; 4 ) have different angles of inclination (alpha;beta;gamma). The angles of inclination are so selected that the representations ( 2; 3; 4 ) can be perceived separately by a viewer on the one hand and on the other hand when producing a copy by means of a color photocopier they are all transferred onto the copy.</p> |
申请公布号 |
CZ20040096(A3) |
申请公布日期 |
2004.07.14 |
申请号 |
CZ20040000096 |
申请日期 |
2002.06.05 |
申请人 |
OVD KINEGRAM AG |
发明人 |
SCHILLING ANDREAS;TOMPKIN WAYNE ROBERT;STAUB RENE |
分类号 |
B42D15/00;B42D25/29;G02B5/18;G02B5/32;G03G21/04;G03H1/18;G03H1/26;(IPC1-7):B42D15/00 |
主分类号 |
B42D15/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|