| 摘要 |
This transparent layered element (1) has two smooth outer main surfaces (2A, 4A) and comprises: two outer layers (2, 4), which each form one of the two outer main surfaces (2A, 4A) of the element (1) and which are constituted of dielectric materials having substantially the same refractive index (n2, n4), and a central layer (3) inserted between the two outer layers, this central layer (3) being formed either by a single layer which is a dielectric layer having a refractive index different from that of the outer layers or a metal layer, or by a stack of layers which comprises at least one dielectric layer having a refractive index different from that of the outer layers or a metal layer. Each contact surface (S0, S1) between two adjacent layers of the element (1), which are one a dielectric layer and the other a metal layer, or which are two dielectric layers having different refractive indices, is textured and parallel to the other textured contact surfaces. |
