Radar-transparent coating
The invention relates to a radar-transparent component comprising a plastic body. Said component is characterized in that at least parts of the surface have a coating with a thickness of between 10 nm and 100 nm that comprises a semiconductor. Said coating gives the plastic body the desired metallic appearance without the body losing the characteristic of a radar-transparent component.
1. Radar-transparent component comprising:
a radar-transparent body and
a coating on at least part of the surface of the radar-transparent body, the coating having a thickness between 10 nm and 100 nm and comprising at least one semiconductor material
wherein the coating comprising at least one semiconductor material is a component of a layer system comprising at least one further layer.
2. Radar-transparent component according to claim 1 , characterized in that the coating comprising at least one semiconductor material comprises silicon.
3. Radar-transparent component according to claim 1 , characterized in that the at least one other layer is SiO 2 .
4. Radar-transparent component according to claim 1 , characterized in that the layer system is an alternating layer system.
5. Radar-transparent component according to claim 1 , characterized in that between the radar-transparent body and the coating comprising at least one semiconductor, an intermediary layer is provided comprising a polymer layer.
6. Radar-transparent component according to claim 1 , characterized in that as a sealing layer against the environment, a polymer coating is provided.
7. Cladding element with a radar-transparent component according to claim 1 , wherein this cladding element is a cladding element for a motor vehicle.
8. Motor vehicle with a radar device, characterized in that a radar-transparent component according to claim 1 is provided in the ray path of the radar device.
9. Method for producing a radar-transparent component, having the steps of:
providing a radar-transparent body and
coating the radar-transparent body with a coating comprising a semiconductor material and at least one further layer to form a component of a layer system,
wherein the coating thickness is between 10 nm and 100 nm, and
wherein the coating is achieved by means of a vacuum process.
10. Method according to claim 9 , characterized in that the vacuum process is a PVD and/or a CVD process.
11. Radar-transparent component according to claim 1 , wherein the radar-transparent body is a plastic body.
12. Radar-transparent component according to claim 2 , wherein the coating comprises silicon as a main component.
13. Radar-transparent component according to claim 2 , wherein the coating consists essentially of silicon.
14. Radar-transparent component according to claim 1 , wherein the layer system comprises an interference layer system.
15. Radar-transparent component according to claim 5 , wherein the polymer layer consists of a UV-hardened lacquer.
16. Radar-transparent component according to claim 6 , wherein the polymer coating consists of a UV-hardened lacquer.
17. Motor vehicle according to claim 8 , wherein the radar-transparent component is at least part of a cladding element.
18. Method according to claim 9 , wherein the radar-transparent body is a plastic body.