Abstract:
A gaseous display panel having a base plate and a face plate is disclosed. A plurality of groups of cathode segments are disposed on the base plate, and a plurality of anodes are disposed on the face plate. Each anode has a plurality of electrically conductive web portions extending across at least one of the cathode segments, the anodes, including the web portions, being deposited onto the face plate simultaneously with the application of a conductive layer used to outline the anode.
Abstract:
Electric discharge lamps of extended life can be produced or cheaper materials used in their manufacture by providing on the internal surface of the envelope and on the exposed surfaces of internal components a protective coating of a metal phosphate or arsenate glass. External surfaces can also be protected against corrosion in air or in the atmosphere within an outer jacket, where this is employed. The coating may be applied in a liquid medium which, preferably after draining, is warmed to evaporate the medium and thereafter baked to form the vitreous coating.