Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00

H01J29/003Arrangements for eliminating unwanted electromagnetic effects H01J29/006Arrangements for eliminating unwanted temperature effects H01J29/02Electrodes Screens Mounting, supporting, spacing or insulating thereof H01J29/021arrangements for eliminating interferences in the tube H01J29/023secondary-electron emitting electrode arrangements H01J29/025Mounting or supporting arrangements for grids H01J29/026Mounting or supporting arrangements for charge storage screens not deposited on the frontplate H01J29/028Mounting or supporting arrangements for flat panel cathode ray tubes H01J29/04Cathodes H01J29/06Screens for shielding Masks interposed in the electron stream H01J29/07Shadow masks for colour television tubes H01J29/073Mounting arrangements associated with shadow masks H01J29/076characterised by the shape or distribution of beam-passing apertures H01J29/08Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked up, converted, or stored H01J29/085Anode plates H01J29/10Screens on or from which an image or pattern is formed, picked up, converted or stored H01J29/12acting as light valves by shutter operation H01J29/14acting by discoloration H01J29/16Incandescent screens H01J29/18Luminescent screens H01J29/182acting upon the lighting-up of the luminescent material other than by the composition of the luminescent material H01J29/185measures against halo-phenomena H01J29/187screens with more than one luminescent material (as mixtures for the treatment of the screens) H01J29/20characterised by the luminescent material H01J29/22characterised by the binder or adhesive for securing the luminescent material to its support H01J29/225photosensitive adhesive H01J29/24Supports for luminescent material H01J29/26with superimposed luminescent layers H01J29/28with protective, conductive or reflective layers H01J29/30with luminescent material discontinuously arranged H01J29/32with adjacent dots or lines of different luminescent material H01J29/322with adjacent dots H01J29/325with adjacent lines H01J29/327Black matrix materials H01J29/34provided with permanent marks or references H01J29/36Photoelectric screens Charge-storage screens H01J29/38not using charge storage H01J29/385Photocathodes comprising a layer which modified the wave length of impinging radiation H01J29/39Charge-storage screens H01J29/395charge-storage grids exhibiting triode effect H01J29/41using secondary emission H01J29/413for writing and reading of charge pattern on opposite sides of the target H01J29/416with a matrix of electrical conductors traversing the target H01J29/43using photo-emissive mosaic H01J29/435with a matrix of conductors traversing the target H01J29/44exhibiting internal electric effects caused by particle radiation H01J29/45exhibiting internal electric effects caused by electromagnetic radiation H01J29/451with photosensitive junctions H01J29/453provided with diode arrays H01J29/455formed on a silicon substrate H01J29/456exhibiting no discontinuities H01J29/458pyroelectrical targets; targets for infra-red or ultra-violet or X-ray radiations H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam H01J29/462arrangements for interrupting the beam during inoperative periods H01J29/465for simultaneous focalisation and deflection of ray or beam H01J29/467Control electrodes for flat display tubes H01J29/48Electron guns H01J29/481Electron guns using field-emission, photo-emission, or secondary-emission electron source H01J29/482Electron guns using electron multiplication H01J29/484Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission H01J29/485Construction of the gun or of parts thereof H01J29/487Replacing parts of the gun; Relative adjustment of the electrodes H01J29/488Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes H01J29/50Two or more guns in a single vacuum space H01J29/503Three or more guns, the axes of which lay in a common plane H01J29/506guns in delta or circular configuration H01J29/51Arrangements for controlling convergence of a plurality of beams by means of electric field only H01J29/52Arrangements for controlling intensity of ray or beam H01J29/525Digitally controlled systems H01J29/54Arrangements for centring ray or beam H01J29/56Arrangements for controlling cross-section of ray or beam Arrangements for correcting aberration of beam H01J29/563for controlling cross-section H01J29/566for correcting aberration H01J29/58Arrangements for focusing or reflecting ray or beam H01J29/585in which the transit time of the electrons has to be taken into account H01J29/60Mirrors H01J29/62Electrostatic lenses H01J29/622producing fields exhibiting symmetry of revolution H01J29/624co-operating with or closely associated to an electron gun H01J29/626producing fields exhibiting periodic axial symmetry H01J29/628co-operating with or closely associated to an electron gun H01J29/64Magnetic lenses H01J29/66using electromagnetic means only H01J29/68using permanent magnets only H01J29/70Arrangements for deflecting ray or beam H01J29/701Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least H01J29/702Convergence correction arrangements therefor H01J29/703Static convergence systems H01J29/705Dynamic convergence systems H01J29/706Deviation correction devices H01J29/707Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices H01J29/708in which the transit time of the electrons has to be taken into account H01J29/72along one straight line or along two perpendicular straight lines H01J29/74Deflecting by electric fields only H01J29/76Deflecting by magnetic fields only H01J29/762using saddle coils or printed windings H01J29/764using toroidal windings H01J29/766using a combination of saddle coils and toroidal windings H01J29/768using printed windings H01J29/78along a circle, spiral or rotating radial line H01J29/80Arrangements for controlling the ray or beam after passing the main deflection system H01J29/803for post-acceleration or post-deflection H01J29/806Electron lens mosaics H01J29/81using shadow masks H01J29/82Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements H01J29/823around the neck of the tube H01J29/826Deflection arrangements H01J29/84Traps for removing or diverting unwanted particles H01J29/845by means of magnetic systems H01J29/86Vessels Containers Vacuum locks H01J29/861Vessels or containers characterised by the form or the structure thereof H01J29/862of flat panel cathode ray tubes H01J29/863Vessels or containers characterised by the material thereof H01J29/864Spacers between faceplate and backplate of flat panel cathode ray tubes H01J29/865Vacuum locks H01J29/866Devices for introducing a recording support into the vessel H01J29/867Means associated with the outside of the vessel for shielding H01J29/868Screens covering the input or output face of the vessel H01J29/87Arrangements for preventing or limiting effects of implosion of vessels or containers H01J29/88provided with coatings on the walls thereof Selection of materials for the coatings H01J29/89Optical or photographic arrangements structurally combined or co-operating with the vessel H01J29/892using fibre optics H01J29/894Arrangements combined with the vessel for the purpose of image projection on a screen H01J29/896Anti-reflection means H01J29/898Spectral filters H01J29/90Leading-in arrangements Seals therefor H01J29/92Means forming part of the tube for the purpose of providing electrical connection to it H01J29/925High voltage anode feedthrough connectors for display tubes H01J29/94Selection of substances for gas fillings Means for obtaining or maintaining the desired pressure within the tube H01J29/96One or more circuit elements structurally associated with the tube H01J29/98Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for