| IPC 7 English version |
| H01J-H01J00340 |
H01J 5/00 - H01J 9/52  |
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| SECTION H – ELECTRICITY |
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| H 01 | BASIC ELECTRIC ELEMENTS |
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| H 01 J | ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; arc lamps with consumable electrodes H05B; particle accelerators H05H) |
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| Notes |
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| (1) | This subclass covers only devices for producing, influencing, or using a flow of electrons or ions, e.g. for controlling, indicating, or switching of electric current, counting electric pulses, producing light or other electromagnetic oscillations, such as X-rays, or for separating or analysing radiation or particles, and having a closed or substantially closed casing containing a chosen gas, vapour, or vacuum, upon the pressure and nature of which the characteristics of the device depend. |
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| Light sources using a combination (other than covered by group H01J 61/96 of this subclass) of discharge and other kinds of light generation are covered by group H05B 35/00. |
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| (2) | In this subclass, groups H01J 1/00 to H01J 7/00 relate only to: |
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| (i) | details of an unspecified kind of discharge tube or lamp, or |
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| (ii) | details mentioned in a specification as applicable to two or more kinds of tubes or lamps as defined by groups H01J 11/00, H01J 13/00, H01J 15/00, H01J 17/00, H01J 21/00, H01J 25/00, H01J 27/00, H01J 31/00, H01J 33/00, H01J 35/00, H01J 37/00, H01J 40/00, H01J 41/00, H01J 47/00, H01J 49/00, H01J 61/00, H01J 63/00 or H01J 65/00, hereinafter called basic kinds. A detail only described with reference to, or clearly only applicable to, tubes or lamps of a single basic kind is classified in the detail group appropriate to tubes or lamps of that basic kind, e.g. H01J 17/04. |
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| (3) | In this subclass, the following term is used with the meaning indicated: |
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| – | "lamp" includes tubes emitting ultra-violet or infra-red light. |
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| (4) | Attention is drawn to the definition of the expression "spark gaps" given in the Note following the title of subclass H01T. [4] |
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| (5) | Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof are classified in group H01J 9/00. |
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| Subclass Index |
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| GAS-FILLED TUBES |
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| Without electrode inside; liquid cathode; gaseous cathode; solid cathode |
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| VACUUM TUBES |
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| Classical tubes: tubes; details |
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| Transit-time tubes: tubes; details |
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| Ion beam tubes |
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| Cathode ray tubes: tubes; details |
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| X-ray tubes |
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| TUBES FOR PROCESSING OR EXAMINATION OF MATERIALS OR OBJECTS |
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| SPECIAL TUBES |
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| For emergence of electrons or ions; particle spectrometers or separator tubes |
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| Vacuum gauges, evacuation by ion diffusion; secondary-emission tubes, electron multipliers; thermionic generators |
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| Photoelectric; radiation and particle detectors |
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| DISCHARGE LAMPS |
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| Gas discharge lamps; cathode ray or electron stream lamps; without electrode inside |
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| DETAILS |
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| Electrodes; electron optics; vessels; other details |
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| MANUFACTURE; REPAIR; REGENERATION; RECOVERY OF MATERIAL |
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1/ | 00 | 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 (details of electron-optical arrangements or of ion traps H01J 3/00) |
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1/ | 02 | . | Main electrodes |
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1/ | 04 | . | . | Liquid electrodes, e.g. liquid cathode |
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1/ | 05 | . | . | . | characterised by material |
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1/ | 06 | . | . | . | Containers for liquid-pool electrodes; Arrangement or mounting thereof |
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1/ | 08 | . | . | . | Positioning or moving the cathode spot on the surface of a liquid-pool cathode |
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1/ | 10 | . | . | . | Cooling, heating, circulating, filtering, or controlling level of liquid in a liquid-pool electrode |
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1/ | 12 | . | . | Cathodes having mercury or liquid alkali metal deposited on the cathode surface during operation of the tube |
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1/ | 13 | . | . | Solid thermionic cathodes |
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1/ | 14 | . | . | . | characterised by the material |
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1/ | 142 | . | . | . | . | with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material [6] |
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1/ | 144 | . | . | . | . | with other metal oxides as an emissive material [6] |
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1/ | 146 | . | . | . | . | with metals or alloys as an emissive material [6] |
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1/ | 148 | . | . | . | . | with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material [6] |
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1/ | 15 | . | . | . | Cathodes heated directly by an electric current |
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1/ | 16 | . | . | . | . | characterised by the shape |
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1/ | 18 | . | . | . | . | Supports; Vibration-damping arrangements |
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1/ | 20 | . | . | . | Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment |
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1/ | 22 | . | . | . | . | Heaters (filaments for incandescent lamps H01K 1/02) |
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1/ | 24 | . | . | . | . | Insulating layer or body located between heater and emissive material |
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1/ | 26 | . | . | . | . | Supports for the emissive material |
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1/ | 28 | . | . | . | . | Dispenser-type cathodes, e.g. L-cathode |
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1/ | 30 | . | . | Cold cathodes |
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1/ | 304 | . | . | . | Field-emissive cathodes [7] |
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1/ | 308 | . | . | . | Semiconductor cathodes, e.g. cathodes with PN junction layers [7] |
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1/ | 312 | . | . | . | having an electric field perpendicular to the surface, e.g. tunnel-effect cathodes of Metal-Insulator-Metal (MIM) type [7] |
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1/ | 316 | . | . | . | having an electric field parallel to the surface, e.g. thin film cathodes [7] |
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1/ | 32 | . | . | Secondary-electron-emitting electrodes (H01J 1/35 takes precedence; luminescent screens H01J 1/62; charge-storage screens in general H01J 1/78; charge-storage screens using secondary emission for image tubes H01J 29/41; dynodes for secondary-emission tubes H01J 43/10; secondary-emission detectors for measurement of nuclear or X-radiation G01T 1/28) |
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1/ | 34 | . | . | Photo-emissive cathodes (H01J 1/35 takes precedence; photoelectric screens H01J 1/78) |
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1/ | 35 | . | . | Electrodes exhibiting both secondary emission and photo-emission |
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1/ | 36 | . | . | Solid anodes; Solid auxiliary anodes for maintaining a discharge |
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1/ | 38 | . | . | . | characterised by the material |
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1/ | 40 | . | . | . | forming part of the envelope of the tube or lamp |
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1/ | 42 | . | . | . | Cooling of anodes (cooling rotary anodes H01J 1/44); Heating of anodes |
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1/ | 44 | . | . | . | Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes |
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1/ | 46 | . | Control electrodes, e.g. grid (for igniting arrangements H01J 7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J 1/36) |
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1/ | 48 | . | . | characterised by the material |
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1/ | 50 | . | Magnetic means for controlling the discharge |
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1/ | 52 | . | Screens for shielding (screens acting as control electrodes H01J 1/46); Guides for influencing the discharge; Masks interposed in the electron stream |
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1/ | 53 | . | Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted, or stored |
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1/ | 54 | . | Screens on or from which an image or pattern is formed, picked-up, converted, or stored; Luminescent coatings on vessels |
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1/ | 56 | . | . | acting as light valves by shutter operation, e.g. for eidophor |
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1/ | 58 | . | . | acting by discolouration, e.g. halide screen |
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1/ | 60 | . | . | Incandescent screens |
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1/ | 62 | . | . | Luminescent screens; Selection of materials for luminescent coatings on vessels |
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1/ | 63 | . | . | . | characterised by the luminescent material (luminescent materials C09K 11/00) |
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1/ | 64 | . | . | . | characterised by the binder or adhesive for securing the luminescent material to its support |
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1/ | 66 | . | . | . | Supports for luminescent material (vessels H01J 5/02) |
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1/ | 68 | . | . | . | with superimposed luminescent layers |
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1/ | 70 | . | . | . | with protective, conductive, or reflective layers |
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1/ | 72 | . | . | . | with luminescent material discontinuously arranged, e.g. in dots or lines |
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1/ | 74 | . | . | . | . | with adjacent dots or lines of different luminescent material |
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1/ | 76 | . | . | . | provided with permanent marks or references |
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1/ | 78 | . | . | Photoelectric screens; Charge-storage screens |
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1/ | 88 | . | Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies |
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1/ | 90 | . | . | Insulation between electrodes or supports within the vacuum space (leading-in conductors H01J 5/46) |
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1/ | 92 | . | . | Mountings for the electrode assembly as a whole |
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1/ | 94 | . | . | Mountings for individual electrodes (for directly-heated cathodes H01J 1/15) |
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1/ | 96 | . | . | Spacing members extending to the envelope |
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1/ | 98 | . | . | . | without fixed connection between spacing member and envelope |
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3/ | 00 | Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps |
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3/ | 02 | . | Electron guns |
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3/ | 04 | . | Ion guns |
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3/ | 06 | . | two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes (H01J 3/07 takes precedence) [2] |
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3/ | 07 | . | Arrangements for controlling convergence of a plurality of beams [2] |
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3/ | 08 | . | Arrangements for controlling intensity of ray or beam (H01J 3/02, H01J 3/04 take precedence) |
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3/ | 10 | . | Arrangements for centering ray or beam (H01J 3/02, H01J 3/04 take precedence) |
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3/ | 12 | . | Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses (H01J 3/02, H01J 3/04 take precedence) |
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3/ | 14 | . | Arrangements for focusing or reflecting ray or beam (H01J 3/02, H01J 3/04 take precedence) |
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3/ | 16 | . | . | Mirrors |
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3/ | 18 | . | . | Electrostatic lenses |
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3/ | 20 | . | . | Magnetic lenses |
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3/ | 22 | . | . | . | using electromagnetic means only |
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3/ | 24 | . | . | . | using permanent magnets only |
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3/ | 26 | . | Arrangements for deflecting ray or beam (circuit arrangements for producing sawtooth pulses or other deflecting voltages or currents H03K) |
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3/ | 28 | . | . | along one straight line or along two perpendicular straight lines |
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3/ | 30 | . | . | . | by electric fields only |
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3/ | 32 | . | . | . | by magnetic fields only |
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3/ | 34 | . | . | along a circle, spiral, or rotating radial line |
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3/ | 36 | . | Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration |
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3/ | 38 | . | Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements |
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3/ | 40 | . | Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection |
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 | H01J 5/00 - H01J 9/52 |
