Discharge tubes and lamps

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J2893/00Discharge tubes and lamps

H01J2893/0001Electrodes and electrode systems suitable for discharge tubes or lamps H01J2893/0002Construction arrangements of electrode systems H01J2893/0003Anodes forming part of vessel walls H01J2893/0004Anodes formed in central part H01J2893/0005Fixing of electrodes H01J2893/0006Mounting H01J2893/0007Machines for assembly H01J2893/0008Supply leads Electrode supports via rigid connection to vessel H01J2893/0009Electrode system pressing against vessel wall H01J2893/001Non-constructive schematic arrangements H01J2893/0011Non-emitting electrodes H01J2893/0012Constructional arrangements H01J2893/0013Sealed electrodes H01J2893/0015Non-sealed electrodes H01J2893/0016Planar grids H01J2893/0017Cylindrical, helical or annular grids H01J2893/0018Bar or cage-like grids H01J2893/0019Chemical composition and manufacture H01J2893/002chemical H01J2893/0021carbon H01J2893/0022Manufacture H01J2893/0023carbonising and other surface treatments H01J2893/0024Planar grids H01J2893/0025by winding wire upon a support H01J2893/0026Machines for manufacture of grids or anodes H01J2893/0027Mitigation of temperature effects H01J2893/0029Electron beam tubes H01J2893/003Tubes with plural electrode systems H01J2893/0031Tubes with material luminescing under electron bombardment H01J2893/0032Tubes with variable amplification factor H01J2893/0033Vacuum connection techniques applicable to discharge tubes and lamps H01J2893/0034Lamp bases H01J2893/0035shaped as flat plates, in particular metallic H01J2893/0036having wires, ribbons or tubes placed between two vessel walls and being perpendicular to at least one of said walls H01J2893/0037Solid sealing members other than lamp bases H01J2893/0038Direct connection between two insulating elements, in particular via glass material H01J2893/0039Glass-to-glass connection H01J2893/004Quartz-to-quartz connection H01J2893/0041Direct connection between insulating and metal elements, in particular via glass material H01J2893/0043Glass-to-metal or quartz-to-metal H01J2893/0044Direct connection between two metal elements, in particular via material a connecting material H01J2893/0045Non-solid connections H01J2893/0046Lamp base with closure H01J2893/0047Closure other than lamp base H01J2893/0048Tubes with a main cathode H01J2893/0049Internal parts H01J2893/005Cathodes H01J2893/0051Anode assemblies screens for influencing the discharge H01J2893/0052Anode supporting means H01J2893/0053Leading in for anodes Protecting means for anode supports H01J2893/0054Cooling means H01J2893/0055Movable screens H01J2893/0056Parts inside tubes brought to incandescence by the discharge H01J2893/0058Grids Auxiliary internal or external electrodes H01J2893/0059Arc discharge tubes H01J2893/006Tubes with electron bombarded gas ( H01J2893/0061Tubes with discharge used as electron source H01J2893/0062Tubes with temperature ionized gas as electron source H01J2893/0063Plasma light sources H01J2893/0064Tubes with cold main electrodes (including cold cathodes) H01J2893/0065Electrode systems H01J2893/0066Construction, material, support, protection and temperature regulation of electrodes Electrode cups H01J2893/0067Electrode assembly without control electrodes H01J2893/0068electrode assembly with control electrodes H01J2893/0069Tubes for displaying characters H01J2893/007Sequential discharge tubes H01J2893/0072Disassembly or repair of discharge tubes H01J2893/0073Discharge tubes with liquid poolcathodes constructional details H01J2893/0074Cathodic cups Screens Reflectors Filters Windows Protection against mercury deposition Returning condensed electrode material to the cathodic cup Liquid electrode level control H01J2893/0075Cathodic cups H01J2893/0076Liquid electrode materials H01J2893/0077Cathodic cup construction Cathodic spot control H01J2893/0078Mounting cathodic cups in the discharge tube H01J2893/0079Means for limiting the cathodic spot movement H01J2893/008Means for stabilising the cathodic spot H01J2893/0081Cooling means H01J2893/0082Returning condensed electrode material to the cathodic cup H01J2893/0083Liquid electrode level control H01J2893/0084Protection against mercury deposition H01J2893/0086Gas fill Maintaining or maintaining desired pressure Producing, introducing or replenishing gas or vapour during operation of the tube Getters Gas cleaning Electrode cleaning H01J2893/0087Igniting means Cathode spot maintaining or extinguishing means H01J2893/0088Tubes with at least a solid principal cathode and solid anodes H01J2893/0089Electrode systems H01J2893/009Anode systems Screens H01J2893/0091Anode supporting means H01J2893/0092Anodic screens or grids H01J2893/0093Anodic arms H01J2893/0094Electrode arrangements Auxiliary electrodes H01J2893/0095Tubes with exclusively liquid main electrodes H01J2893/0096Transport of discharge tube components during manufacture H01J2893/0097Incandescent wires of coils H01J2893/0098Vessels