| 摘要 |
The element has a metallic wire grating (24) including metal wires (26) arranged in parallel at a distance from each other. The metal wires include a grating period of less than 1 micrometer. A bandpass filter (20) displays a constant color visual image in a transversal electric polarized light (30) during tilting the element relative to an alignment of the metal wires. A bandpass filter displays a variable color visual image in a transverse-magnetic polarized light during tilting the element relative to an alignment of the metal wires. An independent claim is also included for a method for authenticating a security element. |
