| 摘要 |
According to one aspect, the invention relates to an optical security component (10) intended to be observed in reflection in an inspection spectral band from an inspection side (100), the component comprising: a set of layers that are transparent in said inspection spectral band, one layer of which is structured, said structured layer comprising, in one or more inspection zones (A, B) forming recognisable graphic elements, microstructures suitable for generating variable visual effects that vary depending on the conditions of illumination and/or observation of the component, and on the periphery of said inspection zones, microstructures the shape, spatial distribution and lateral and heightwise dimensions of which are random in order to form a structure (D) that is optically scattering in the inspection spectral band; and a metal layer (15) arranged locally on the structured layer, such as to have a maximum reflection in the inspection zones and a transparency that increases level with the optically scattering structure, the transparency increasing with distance from the inspection zones. |
