Illumination cover for electromagnetic transmitters and receivers

The invention relates to a lighting cover (1) for an electromagnetic sensor, such as a radar sensor (20). The cover comprises a multilayer sheet (10) which is substantially transparent to electromagnetic radiation emitted and/or received by the electromagnetic sensor. The plate comprises a first layer (100) of an optically transparent material and a second layer (110) on at least one surface of the first layer and having a lower refractive index than the first layer. A graphic layer (140) is provided on the second layer. At least one light source (130) is arranged to couple light into the first layer acting as a light guide. At least one surface of the first layer is also provided with at least one optical element (120) for outcoupling light from the first layer. 本发明涉及一种用于电磁传感器的照明盖子(1)，所述电磁传感器诸如是雷达传感器(20)。盖子包括多层板(10)，其对于由电磁传感器发射和/或接收的电磁辐射基本上是透明的。该板包括光学透明材料的第一层(100)和在第一层的至少一个表面上并且具有比第一层低的折射率的第二层(110)。在第二层上提供图形层(140)。至少一个光源(130)被布置为将光耦合到充当光导的第一层中。第一层的至少一个表面还设有至少一个光学元件(120)，用于从第一层输出耦合光。