Abstract: High resistivity chromium silicide coatings that are chemically, physically, and electrically stable at high temperatures are provided. The coatings are applied to substrates, optionally over a barrier layer of dielectric. The coatings are deposited in a magnetron sputtering process involving sputtering of a CrSi.sub.2 target in the presence of a gaseous mixture that includes nitrogen. The coatings so provided typically have resistivities on the order of 100 to 20,000 ohms per square. The degree of nitrogen incorporation varies with the thickness of the chromium silicide to give selected ranges of stable products.

Abstract: Visually transparent, infra-red reflecting films are disclosed for solar heat control. The films employ Fabry-Perot sandwich interference filters which are characterized by having two or more transparent layers of sputter-deposited metal such as silver directly contiguous with dielectric spacer layers and optionally boundary layers. Methods for producing these materials by sputtering techniques as well as glazing materials incorporating these films are disclosed, as well.

Abstract: An improved transparent touch panel membrane switch for use and shielding in front of a visual display terminal is disclosed. The switch is made up of a plurality of plastic sheets arrayed substantially parallel to one another in a sandwich configuration. The outermost of the sheets has an antireflective hardcoat. Two adjacent but spaced apart inner sheets provide the electrical contact through transparent low reflectance conductive metal coatings. The switch additionally contains a further inner antireflective transparent electrically conductive coating which provides shielding against the passage of electromagnetic and radio frequency interference through the membrane switch. The layers in this switch all contribute to a relatively low transmittance of back lighting from the visual display terminal but also significantly reduce reflectance such that the overall signal-to-noise ratio is substantially enhanced.

Abstract: A glass unit suitable for use as a window in a building comprising at least a pair of spaced, generally parallel, electrically conductive and transparent films in a space between a pair of glass panes. The films are taut and a conductive lead is electrically connected with the films to couple them to ground.

Abstract: A glass unit having at least a pair of glass panes spaced from and on opposite sides of an electrically conductive transparent film in a taut condition. The glass panes are separated by a pair of spacer tubes between which the outer peripheral margin of the plastic film extends. A sealant covers the outer peripheries of the spacer tubes and spans the distance between the outer peripheries of the panes. An electrical lead electrically connected directly or through a wire cloth to the film couples the film to electrical ground. The glass unit is transparent to electromagnetic radiation in the 400 to 700 nm range but opaque to electromagnetic radiation in the range of 10.sup.10 to 10.sup.4 nm.