Coated component
The invention concerns an infrared sensor, in particular an optical finger navigation module, with a component used as a cover glass for the sensor, the component comprising a sensor region and a transparent region, the transparent region comprising a thin layer system which is at least partially transparent for visible light and comprises at least one layer, and the at least one layer being a metal layer, a semiconductor layer and/or a combination of a plurality of metals and/or a plurality of semiconductors, or comprising a combination of at least one metal and at least one semiconductor, characterized in that both the sensor region and the transparent region are covered with a UV-hardening hardened lacquer layer.
1. Infrared sensor with a component used as a cover glass for the sensor, the component comprising a sensor region and a transparent region, the transparent region comprising a thin layer system which is at least partially transparent for visible light and comprises at least one layer, and the at least one layer being a metal layer, a semiconductor layer and/or a combination of a plurality of metals and/or a plurality of semiconductors, or comprising a combination of at least one metal and at least one semiconductor, characterized in that both the sensor region as well as the transparent region are covered with a UV-hardening hardened lacquer layer,
wherein the sensor region being a central region made of black colored polycarbonate and transparent for infrared radiation, and
the transparent region being a border region made of transparent polycarbonate and at least partially transparent for visible light.
2. Infrared sensor according to claim 1 , characterized in that the at least one layer comprises chromium.
3. Infrared sensor according to claim 2 , characterized in that the at least one layer has a thickness of 20 nm.
4. Infrared sensor according to claim 2 , characterized in that the at least one layer has an adhesive layer lying directly on a substrate and a following functional layer.
5. Infrared sensor according to claim 2 , wherein the at least one layer comprises a chromium layer.
6. Infrared sensor according to claim 1 , wherein the infrared sensor comprises an optical finger navigation module.
7. Infrared sensor according to claim 1 , wherein at least one layer comprises a metal layer, a semiconductor layer and/or a layer combining a plurality of metals and/or a plurality of semiconductors is a PVD deposited layer.
8. Infrared sensor according to claim 1 , wherein a thickness of the UV-hardening hardened lacquer layer is approximately 20 μm.