Flachglas Aktiengesellschaft

Flachglass Aktiengesellschaft

Dieter Muller

Rolf Groth

Wilhelm Rein

Front attachment unit for the cathode ray tube of monitors, television sets or the like, consisting of a sheet of glass, in particular a sheet of gray glass, anti-reflection equipment on the front side and an absorption coating on the rear side, whereby the absorption coating has metallic atoms. The absorption coating is single-layer and made of chromium, a chromium/nickel alloy or silicides. It is anti-statically adjusted and grounded. It is of a thickness which reduces the light transmission compared with a non-coated sheet of glass by approximately a third.

Front attachment for CRT. E.G. for a monitor or video tube

Optical filters, e.g. for reflecting infrared radiation while passing visible light radiation is made by applying to the silver reflective coating a protective coating of a metal oxide by magnetron cathode sputtering and only thereafter is the dereflective layer applied by magnetron cathode sputtering. The protective coating-oxygen partial pressure and coating rate are substantially less than the dereflective coating-oxygen partial pressure and coating rate. Apparently the protective coating prevents damage to the reflective coating.

Growing community of inventors

Siegen, Germany

Dieter Muller