Abstract:
A gas switch includes a gas-tight housing containing an ionizable gas, an anode disposed within the gas-tight housing, and a cathode disposed within the gas-tight housing, where the cathode includes a conduction surface. The gas switch also includes a control grid positioned between the anode and the cathode, where the control grid is arranged to receive a bias voltage to establish a conducting plasma between the anode and the cathode. In addition, the gas switch includes a plurality of magnets selectively arranged to generate a magnetic field proximate the conduction surface that reduces the kinetic energy of charged particles striking the conduction surface and raises the conduction current density at the cathode surface to technically useful levels.
Abstract:
A field controlled plasma discharge display element is disclosed for light source use in single element and multiple element plasma discharge electrostatic printers. The display element includes a pair of hollow discharge electric field electrodes, and a third electrode positioned external to and aligned with the discharge electric field electrodes for generating a control electric field proximate to the discharge electric field. The control electric field is used to control the intensity of the plasma discharge by distorting the shape of the generated discharge electric field. The single element plasma discharge device is modulated in accordance with the image to be printed and the modulated output is scanned across the photoconductive surface to produce the latent image. The multi-element matrix hollow cathode discharge device, on the other hand, generates the latent image on the photoconductive surface using either a line imaging (using a one by y matrix discharge device) effect or a page imaging (using an x by y matrix discharge device) effect.
Abstract:
A gas-filled discharge tube includes a tubular body formed of an electrically insulating material, and has engaging portions respectively at opposite ends thereof. A pair of electrode bases are provided; at least one of the electrode bases is formed of an electrically conducting thin metal sheet, airtightly adhered to the respective open ends. A pair of discharge electrodes are provided; the discharge electrodes have flange portions which are engaged with the respective engaging portions and sandwiched between the tubular body and the respective electrode bases. One of the electrode bases is formed with a gas filling bore by a laser beam for filling an inert gas. The gas filling bore is welded by the laser beam after the inert gas is filled in the tubular body, so as to seal and enclose the inert gas therein.
Abstract:
A plasma display has a plurality of discharge cells arranged in a matrix. The discharge cells are formed of an air-tight space sealed by a support substrate, a cathode electrode, and a glass substrate, and storing a discharge gas, e.g., He--Ne, Ne--Xe, He--Xe, or the like. The distance among the cells, i.e., the width of each partition wall formed of the substrate is set to about 0.1 .mu.m to 300 .mu.m. An emitter for emitting electrons, and a counter electrode are disposed in the cell. The counter electrode is disposed on the glass substrate to oppose the emitter. The distal end portion of the emitter is sharp to have a radius of curvature of about 1 .mu.m to 100 .mu.m at its distal end.
Abstract:
A gas discharge closing switch has a high voltage anode structure containing a plurality of surface elements facing substantially toward a cathode and spaced from each other to define gaps therebetween. In a preferred embodiment, a control electrode structure includes a surface defining an aperture corresponding to at least one of the gaps.
Abstract:
A planar discharge plasma display device is disclosed, wherein common third signal lines, first signal lines for display discharge, and second signal lines for auxiliary discharge are formed on a rear plate, and barrier ribs for preventing cross-talk between pixels are formed together. Particularly, the signal lines and barrier ribs formed in the same direction constitute an accumulated structure so that the display discharge can be caused fast and stably, and also the occupation area of pixel per unit area is maximized, thereby realizing an image display of higher density.
Abstract:
The invention relates to a gas filled thyratron type switching discharge tube. Known hydrogen thyratrons conduct in only one direction and if forced to conduct in the opposite direction through being connected in an oscillatory circuit there is a likelihood of damage occurring to the anode. To overcome the disadvantage, the anode structure incorporates means for generating a plasma including a thermionic electrode and at least one adjacent discharge electrode, the plasma generated during operation serving as a source of charged particles so that current reversal may be achieved with a minimum of bombardment of the anode structure by high energy ions.