Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps

H01J1/02Main electrodes H01J1/025Hollow cathodes H01J1/04Liquid electrodes H01J1/05characterised by material H01J1/06Containers for liquid-pool electrodes Arrangement or mounting thereof H01J1/08Positioning or moving the cathode spot on the surface of a liquid-pool cathode H01J1/10Cooling, heating, circulating, filtering, or controlling level of liquid in a liquid-pool electrode H01J1/12Cathodes having mercury or liquid alkali metal deposited on the cathode surface during operation of the tube H01J1/13Solid thermionic cathodes H01J1/135Circuit arrangements therefor H01J1/14characterised by the material H01J1/142with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material H01J1/144with other metal oxides as an emissive material H01J1/146with metals or alloys as an emissive material H01J1/148with compounds having metallic conductive properties H01J1/15Cathodes heated directly by an electric current H01J1/16characterised by the shape H01J1/18Supports Vibration-damping arrangements H01J1/20Cathodes heated indirectly by an electric current Cathodes heated by electron or ion bombardment H01J1/22Heaters H01J1/24Insulating layer or body located between heater and emissive material H01J1/26Supports for the emissive material H01J1/28Dispenser-type cathodes H01J1/30Cold cathodes H01J1/304Field-emissive cathodes H01J1/3042microengineered H01J1/3044Point emitters H01J1/3046Edge emitters H01J1/3048Distributed particle emitters H01J1/308Semiconductor cathodes H01J1/312having an electric field perpendicular to the surface H01J1/316having an electric field parallel to the surface H01J1/32Secondary-electron-emitting electrodes H01J1/34Photo-emissive cathodes H01J1/35Electrodes exhibiting both secondary emission and photo-emission H01J1/36Solid anodes Solid auxiliary anodes for maintaining a discharge H01J1/38characterised by the material H01J1/40forming part of the envelope of the tube or lamp H01J1/42Cooling of anodes Heating of anodes H01J1/44Rotary anodes Arrangements for rotating anodes Cooling rotary anodes H01J1/46Control electrodes H01J1/48characterised by the material H01J1/50Magnetic means for controlling the discharge H01J1/52Screens for shielding Guides for influencing the discharge Masks interposed in the electron stream H01J1/53Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked up, converted, or stored H01J1/54Screens on or from which an image or pattern is formed, picked up, converted, or stored Luminescent coatings on vessels H01J1/56acting as light valves by shutter operation H01J1/58acting by discolouration H01J1/60Incandescent screens H01J1/62Luminescent screens Selection of materials for luminescent coatings on vessels H01J1/63characterised by the luminescent material H01J1/64characterised by the binder or adhesive for securing the luminescent material to its supports H01J1/66Supports for luminescent material H01J1/68with superimposed luminescent layers H01J1/70with protective, conductive, or reflective layers H01J1/72with luminescent material discontinuously arranged H01J1/74with adjacent dots or lines of different luminescent material H01J1/76provided with permanent marks or references H01J1/78Photoelectric screens Charge-storage screens H01J1/88Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies H01J1/90Insulation between electrodes or supports within the vacuum space H01J1/92Mountings for the electrode assembly as a whole H01J1/94Mountings for individual electrodes H01J1/96Spacing members extending to the envelope H01J1/98without fixed connection between spacing member and envelope