Abstract:
In order to ensure hermeticity of a hermetic container and to suppress occurrence of electrical leakage, a display device is provided with a faceplate including an anode to be supplied with an externally-supplied electric potential, a rear plate arranged facing the faceplate at a predetermined spacing therefrom, a metal pin for supplying the electric potential to the anode from outside of the rear plate through a penetration hole in the rear plate, wherein the penetration hole includes the metal pin by insertion. The metal pin includes an axis portion disposed in the penetration hole and a flange portion which is integral with this axis portion and which is located adjacent an opening end of the penetration hole. The flange portion is joined to the rear plate for hermetically sealing the penetration hole.
Abstract:
A quartz glass vessel having mutually opposed first and second neck-shaped portions is heated over the first neck-shaped portion while flushing the vessel with gas, then pinched over an external current wire and collapsed over a metal foil by means of reduced pressure to form a seal. The second neck-shaped portion may also be collapsed over a metal foil by reduced pressure in the lamp vessel to form a seal. The seals are preferably shaped to form flat external surfaces.
Abstract:
A fluorescent lamp having an improved starting performance, especially at low temperatures. A gas under a low pressure is sealed in a glass tube having a pair of electrodes mounted thereon, and a fluorescent material is coated on the inner surface of the glass tube, the fluorescent material being activated to emit light by a discharge between the pair of electrodes. A third electrode is provided between the pair of electrodes, the third electrode being connected to one of the pair of electrodes.
Abstract:
A plasma display device is provided with one substrate having a plurality of electrode drawing-out portions extending up to a side end thereof for applying an AC voltage to X side electrodes each independently, a second substrate having a plurality of electrode terminal portions formed independently on its electrode-disposed surface, the plural electrode terminal portions being electrically connected respectively to the plural electrode drawing-out portions by a connector portion. The connection of each of the X and Y electrodes with an external power source can thus be made on only the Y side electrode-disposed surface of the second substrate. Besides, the shape of the substrates is simplified.
Abstract:
A quartz lamp envelope includes a press seal, at least one molybdenum foil feedthrough extending through the press seal to the lamp interior, and an external electrical lead connected to the molybdenum foil. The molybdenum foil has an oxidation-inhibiting material, such as chromium, aluminum and combinations thereof, embedded in a surface layer thereof by ion implantation. The electrical lead has an oxidation-inhibiting coating, such as silicon carbide, silicon nitride and combinations thereof, formed by plasma-enhanced chemical vapor deposition. Alternatively, the electrical lead can have an oxidation-inhibiting material embedded in a surface layer thereof by ion implantation.
Abstract:
An interconnect system which is used to provide an electrical connection between contact pads on the facing surfaces of adjacent electrical support media such as the face plate and the substrate of an electronic circuit device such as gas discharge displays. The interconnect system uses a conductive glass material which is selectively screened onto and fired with the display device.
Abstract:
A tubular gaseous discharge lamp such as an ultraviolet or fluorescent lamp is provided which includes a hollow cylinder which is connected to a pair of end caps on each of which there is mounted an electrode. The first electrode is connected to an insulated or Teflon coated wire which is disposed along the outside surface of the cylinder and passes through the end cap which supports the second electrode. The second electrode is connected to a second insulated or Teflon coated wire which projects from the second end cap. The wires facilitate connection of the ultraviolet lamp to a source of electrical power which is located at one end of the lamp.In an alternative embodiment of the invention two or more ultraviolet lamps are inserted into a hollow quartz tube, thereby providing an ultraviolet light source of extended length, or two or more fluorescent lamps may be used in single end application.
Abstract:
In a fluorescent lamp electrode assembly a coil electrode is supported on lead wires sealed in a glass flare. It has been found that during on-off switching cycles distortion occurs in the lead wires. To solve this it is proposed to make the lead wires, at least in the region of the electrodes, of single phase material, specifically austenitic steel. If difficulties are presented of matching coefficients of expansion of lead wires and flare the inner parts of the lead wires only may be of that material using a multi part welded structure in which the other parts are of, say, nickel-iron alloy or dumet.
Abstract:
An improved mounting of the ceramic arc tube on a support rod attached to one lead-in within an outer vitreous envelope allows for thermal expansion. The inlead at one end of the arc tube is fastened to the support rod which serves also as conductor, while that at the other end extends through an insulating bushing supported from the rod and is connected by a curved flexible conductor to the other lead-in of the outer envelope. Differential thermal expansion is accommodated by sliding of the inlead through the bushing and flexing of the curved conductor.
Abstract:
A flash tube has a lead-in wire extending through the end of the flash tube. An end cap is bonded to the end of the flash tube with bonding material. A flexible sleeve is disposed around the lead-in wire to prevent contact between the bonding material and the lead-in wire.