| 摘要 |
The invention relates to a substrate (1) and to a family of substrates for producing a partial or composite image, characterised in that they comprise a substrate portion (3) having a geometry corresponding to an optical zone of a given optical selector defined for set viewing conditions, said portion being configured to allow part of a primary image formed on or applied to the substrate (1) to be removed, and thus a partial image to be obtained. |
