Abstract:
1. IN THE METHOD OF MANUFACTURING A GAS-DISCHARGE DISPLAY PANEL COMPRISING AT LEAST ONE BOTTOM PLATE AND ONE TOP PLATE OF INSULATING, TRANSPARENT MATERIAL, THE BOTTOM AND TOP PLATES BEING PROVIDED WITH STRIP-SHAPED RELATIVELY INSULATED CONDUCTORS, PARTS OF THE SURFACES OF WHICH ARE IN CONTACT WITH A GAS ATMOSPHER IN CAVITIES BETWEEN THE CONDUCTORS, THE STEPS OF EMBEDDING A COMBSHAPED CONDUCTOR IN AN INSULATING PLATE WITH THE TINES OF THE COMB-SHAPED CONDUCTOR EXTENDING UP TO THE SURFACE OF THE PLATE, AND THEREAFTER CHEMICALLY ETCHING THE TINES TO FORM CAVITIES IN THE INSULATING PLATE.
Abstract:
A getter for a gas discharge tube having mercury vapor in which the getter which is active at room temperature is separated from the mercury-containing atmosphere by porous sintered bodies.
Abstract:
A gas discharge panel in which the conductors of the base plate and the upper plate are connected to said base plate and upper plate by means of an enamel.
Abstract:
A television camera tube having an elongate envelope comprising two cylindrical parts. The cylindrical part which is connected to the face plate has a larger diameter than the other cylindrical part and comprises a gauze electrode secured to a supporting ring. This supporting ring is clamped between the face plate and the neck between the two cylindrical parts by means of resilient pressure means. A circular rounding of the neck on the side of the cylindrical part with the smallest diameter is to be preferred, said rounding being covered with a conductive layer. A few dimensions are given related to the diameter of the cylindrical part of the smallest diameter. The ratio between the voltages at the gauze electrode and the conductive layer preferably is between 1.65 and 2.35.
Abstract:
A method of making a gas-discharge panel comprising etching discharge cavities and interconnecting channels between the discharge cavities out of strip-shaped electrodes embedded in insulating plates. The channels are etched beneath the surface of the insulating plate to depths which do not allow a discharge in one cavity to strike a discharge in adjacent cavities.