Abstract:
To extend the life of electric discharge and enhance the characteristic of electric discharge in the life test in a gas filled switching electric discharge tube. A gas filled switching electric discharge tube comprises: a cylindrical body (1) made of insulating material; two electrodes (2, 3) for airtightly closing both ends of the cylindrical body; an electric discharge gap, an airtightly closed space formed in the cylindrical body including the electric discharge gap being filled with gas; metallized faces formed on both end faces of the electrodes of the cylindrical body; first trigger wires (10a, 10b) formed on an inner wall face of the cylindrical body, connected with the metallized faces; and second trigger wires (10c) formed on the inner wall face of the cylindrical body, not connected with the metallized faces, wherein the first electrode face and second electrode face are plated with copper or silver.
Abstract:
An apparatus for cathodic arc coating. The apparatus includes: a vacuum chamber which includes an anode; a power supply; and a cathode target assembly connected to the power supply. The cathode target assembly includes a cathode target and a target holder. In the preferred embodiment, a conductive interlayer is located between the cathode target and the target holder, and a cooling block is in contact with the cathode target.
Abstract:
An energy storage device in which a vacuum tube and a magnetic field are used to store electrons circulating within the tube along spiral paths. The vacuum tube can have a generally toroidal shape and contains an electron gun or filament to inject electrons into the tube. Systems for retrieving electrons and precisely controlling their movement within the tube use a microprocessor control circuit that may be programmed to perform energy storage and retrieval functions.
Abstract:
A method for cooling the discharge tube in a gas discharge or atomic emission detector is described. An air cooled discharge detector is also disclosed. In the method and the detector, air is passed over the outer surface of the discharge tube thereby cooling the outer and inner surface of the discharge tube. Air cooling is utilized in any gas discharge detector including radio frequency powered atomic emission detectors.
Abstract:
An electron beam generator having circuit interconnections between individual components that are less prone to the adverse effects of thermal cycling. The generator includes a conductor rod within a guide tube, a center conductor secured to one end of the rod, and an outer conductor secured to the adjacent end of the guide tube. An opposite end of the center conductor has an integrally-formed flange extending radially therefrom. A first tower is secured and electrically connected to the flange, while a second and adjacent tower is electrically connected to the outer conductor. A filament is mounted to and between the first and second towers. A forward leg of the filament circuit comprises the conductor rod, the center conductor, the flange and the first tower, and the return leg of the filament circuit comprises the second tower and the guide tube interconnected by the outer conductor.
Abstract:
A mercury capsule for use in a fluorescent lamp comprises a shell defining a chamber and a bore extending through the shell. A body of mercury is disposed in the chamber. A plug is disposed in the bore to seal the bore. The plug exhibits a melting point reached in manufacture of the fluorescent lamp, to melt from the bore to open an exit passageway for the mercury. A method for making the capsule is provided.
Abstract:
The metal halide lamp with a ceramic discharge vessel (4) has sealing means at its two ends (6), an electrically conductive lead-through (9, 10; 30) being guided through these means in a vacuum-tight manner, to which lead-through an electrode (14) with a shank (15) is attached, which electrode projects into the interior of the discharge vessel. At least a front part, which faces toward the discharge, is designed as a component made from electrically conductive cermet which comprises a halide-resistant metallic phase and a ceramic phase of a ceramic base material. The fill comprises at least one halide of a rare-earth metal. At least on the front side of the component, at least part of the ceramic phase comprises the combination of the ceramic base material and one or more rare-earth metal oxides.
Abstract:
The invention relates to a high-pressure metal-halide lamp comprising a discharge vessel with an ionizable filling containing Hg, a halide and a rare gas, which vessel includes electrodes with a rod containing substantially W. The lamp, when in operation, maintains a W-halide cycle in the discharge vessel. According to the invention, the discharge vessel contains an oxygen dispenser.
Abstract:
It is described an oxygen dispenser for use in high pressure discharge lamps. The oxygen dispenser of the invention comprises a metallic container capable of retaining solid materials but allowing an easy passage of gas, containing silver oxide. Several possible types of dispenser are proposed. The dispenser has shown capable of avoiding the formation of black deposits coming from hydrocarbons inside the lamps.
Abstract:
Cesium dispensers are produced based on the use of a mixture of at least one reducing agent and at least one cesium compound selected among molybdate, tungstate, niobate, tantalate, silicate and zirconate. The cesium dispensers are useful in the production of OLED-type screens.