| AR-BV = anti-reflection layer system, violet-blue As more and more electronics find their way into motor vehicles, it is not just new safety and comfort features that are possible. Entirely new levels of freedom are also emerging for the design of a car’s interior. With FLABEG, an optically-coated anti-reflective gray glass, we are able to break fresh ground in design and functionality. The function symbols of the individual control elements only become visible once the ignition has been switched on. This glass is installed for rear mirrors, sunroofs, and display instruments, among other things. As with many other types of glass, we also have the advantages here of design freedom, safety, and robustness. The anti-reflection level and light transmission exceed 99 %, reflection interference is reduced to a minimum, and the glass is scratchproof, resistant to chemicals, friction-resistant and therefore constantly “like new”. The glass is manufactured using magnetron sputtering technology, which is based on a continuous argon gas discharge, known as plasma. Low-pressure plasma is ignited by a high voltage of up to 1000 V. The target material attached to the magnetron is evaporated by a beam of argon ions and deposited onto the glass surface in a thin, even, compact layer. Unlike with this “non-reactive sputtering” (e.g. metal films), with “reactive sputtering” oxides or nitrides react with gases before they are deposited on the glass surface. Our state-of-the-art vacuum coating system performs reactive and non-reactive sputtering in a single coating process. Dual magnetrons can be used for the efficient and top-quality production of highly insulating, highly resistant silicon oxide films that serve as a basic material for optically functional layers. |
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