Patents
Patents for H01J 29 - Details of cathode-ray tubes or of electron-beam tubes of the types covered by group (25,146)
10/1981
10/06/1981US4293790 Image converter having cylindrical housing and photocathode separated by spacing element from luminescent screen on frustrum
10/06/1981US4293586 Method for forming a fluorescent screen
10/06/1981CA1110365A1 System and method for keying video information to electron beam deflection
10/06/1981CA1110364A1 Television cathode ray tube having a voltage divider providing temperature-invariant voltage and associated method
10/06/1981CA1110321A1 Method of manufacturing cathode assembly
10/06/1981CA1110054A1 Cerium activated phosphor and method of making same
09/1981
09/30/1981EP0036779A2 Photoelectric conversion device and method of producing the same
09/30/1981EP0036681A1 Method of manufacturing a colour television display tube having a gas-absorbing layer; colour television display tube thus manufactured, and gettering device suitable for such a method
09/29/1981US4292565 Shadow mask assembly for a cathode ray tube
09/29/1981CA1109919A1 Image pickup apparatus
09/23/1981EP0036340A1 Particle or luminous radiation impact localisation device and cathode ray oscilloscope comprising such a device
09/22/1981US4291253 Grid structure for color picture tube
09/22/1981US4291251 Color display tube
09/22/1981CA1109566A1 Structure and method for terminating an electrical resistor for a television crt
09/22/1981CA1109565A1 Arc suppression and static elimination system for a television crt
09/16/1981EP0035917A2 A photosensitive composition, an article comprising the composition and the use of the composition as a photoresist
09/15/1981US4290038 Scanning-area rotation device for an image pickup tube
09/15/1981US4289800 Method for providing an electrically conductive bridge in cathode ray tubes
09/15/1981CA1109114A1 Cathode-ray tube
09/15/1981CA1109113A1 Colour television display tube
09/08/1981US4288720 Method of erasing information in a scan converter storage tube
09/08/1981US4288719 CRT With means for suppressing arcing therein
09/08/1981US4288718 Means and method for beam spot distortion compensation in TV picture tubes
09/08/1981US4288250 Glass filter for contrast enhancement in CRT displays
09/08/1981CA1108751A1 Television raster width regulation circuit
09/08/1981CA1108683A1 Electron gun exhibiting reduced flare
09/01/1981US4287450 Electric circuit arrangements incorporating cathode ray tubes
09/01/1981US4287257 Phosphors for color televisions
09/01/1981US4287230 By vapor deposition of cesium iodide doped with sodium and an oxide which inhibits crystal growth and maintains a needle-like structure
09/01/1981US4287229 Method for surface treatment of phosphor particles
08/1981
08/26/1981EP0034302A2 Colour picture tube without shadow-mask and with only one electron gun
08/25/1981US4286189 Color cathode ray tube with shadow mask having inwardly bent skirt portions
08/25/1981US4286148 Image intensifier tube with photocathode protective circuit
08/25/1981US4286034 Metal, polyimide film and cadmium selenide
08/25/1981US4285990 Vacuum and vapor deposition of chromium in a cathode ray tube to minimize current leakage
08/19/1981EP0034059A1 Cathode ray tube, a copper and aluminum activated zinc sulfide phosphor, a process for preparing said phosphor, and a color television incorporating said cathode ray tube
08/18/1981US4285013 Mounting assembly for a deflection yoke
08/18/1981US4284694 Method for improving the adherence of a phosphor-photobinder layer to a glass support
08/18/1981US4284662 Method of manufacturing color picture tubes
08/18/1981US4284661 Applying dielectric to prevent luminescence
08/18/1981CA1107341A1 Astigmatic election lens, cathode-ray tube having such a lens, and device having such a cathode-ray tube
08/12/1981EP0033574A1 Electrical power supply arrangement for image intensifier tubes and combination thereof with an image intensifier tube
08/12/1981EP0033438A1 Beam adjusting device for a colour picture tube
08/11/1981US4283743 Yoke mounting assembly for a video camera
08/11/1981US4283655 Cathode ray tube with multiple internal graticules
08/11/1981US4283654 Modular tube shadow mask support system
08/11/1981CA1106897A1 Phosphor screen for modular flat panel display device
07/1981
07/29/1981EP0032847A2 Photoelectric conversion element and an image pick-up device
07/28/1981US4281270 Precoated resistive lens structure for electron gun and method of fabrication
07/28/1981US4280931 Method and composition for electrically resistive material for television cathode ray tubes
07/21/1981US4280134 Beam index color television receiver apparatus
07/21/1981US4280125 Thin vacuum panel display device
07/21/1981US4280080 Deflection-coil system for color picture tubes
07/21/1981US4280077 Cathode-ray tube having corrugated shadow mask with varying waveform
07/21/1981CA1105544A1 Optical screens
07/21/1981CA1105543A1 Deflection yoke for use with wide angle deflection system
07/21/1981CA1105542A1 Box-shaped scan expansion lens for cathode ray tube
07/21/1981CA1105541A1 Convergence device for projection type color television system
07/14/1981US4278913 Metal fluoride-zinc oxide, yellow
07/14/1981US4278912 Electric discharge tube having a glass-sealed electric leadthrough and method of manufacturing such an electric leadthrough
07/08/1981EP0031679A1 Vidicon type camera tube
07/08/1981EP0031663A2 Photoelectric device
07/07/1981US4277767 Deflection yoke
07/07/1981US4277722 Cathode ray tube having low voltage focus and dynamic correction
07/07/1981US4277515 Targets for use in photoconductive image pickup tubes
07/07/1981CA1104632A1 Cathode-ray tube
07/07/1981CA1104631A1 Multilayered deflection yoke
07/07/1981CA1104630A1 Hybrid deflection yoke with quadripolar correction coils
07/07/1981CA1104629A1 Interlocking electron tube base and adapter
07/01/1981EP0031124A1 Process to improve the processibility of phosphors in screening processes
07/01/1981EP0031095A2 Process for producing a double layer with hetero-junction for the memory electrode of an image registration device
06/1981
06/30/1981US4276495 Electron gun for cathode-ray tube
06/30/1981US4276494 Cathode ray tube with transversely supported electrode and conductive wall coating
06/30/1981US4276363 Process for forming phosphor screens with treated phosphors
06/30/1981US4276335 Electron beam matrix deflector and method of fabrication
06/30/1981CA1103914A1 Light emitting substances for screens or tubes
06/24/1981EP0030704A2 Magnetizing device for the convergence assembly of in-line colour picture tubes
06/24/1981EP0030613A1 Multiple beam cathode ray tube having improved cathode-grid structure
06/23/1981US4275355 Direct view storage tube having improved readout performance
06/23/1981US4275333 Fluorescent compositions and low-velocity electron excited fluorescent display devices utilizing the same
06/23/1981US4275332 In-line electron gun
06/23/1981US4275326 Image intensifier tube with a light-absorbing electron-permeable layer
06/17/1981EP0030270A1 Multiple beam cathode ray tube having reduced off-axis aberrations
06/16/1981US4274110 Projection television system
06/16/1981US4274031 Color tube having shield correcting for terrestrial magnetism
06/16/1981US4273842 Process for forming patternwise coated powder layer
06/16/1981CA1103299A1 Color cathode ray tube with beam indexing stripes
06/16/1981CA1103012A1 Radiation-conversion screens
06/10/1981EP0029963A1 Phosphor and radiation image storage panel utilizing the same
06/09/1981US4272727 Self-converging deflection units for color display tubes of different screen formats
06/09/1981US4272701 Cathode ray tube arc limiting coating
06/09/1981US4272700 One piece astigmatic grid for color picture tube electron gun and method of making same
06/09/1981US4272397 Method of preparing flake-like ceramic particle of zinc sulfide phosphor
06/02/1981US4271377 System for compensating for cathode variations in display devices utilizing line cathodes
06/02/1981US4271374 Electron gun for cathode-ray tube
06/02/1981US4271373 Cathode ray tube with inclined electrostatic field lens
06/02/1981US4271345 Induction heating coil
06/02/1981US4271247 Color picture tube with screen having light absorbing areas
06/02/1981CA1102404A1 Method of determining variations in the previously adjusted nominal distance between the facing surfaces of a colour selection electrode and a display window of a colour television display tube, and device for carrying out the method
05/1981
05/26/1981US4269918 Photodegradation of a thin layer of a photosensitive aromatic diazonium salt causing tackiness; dusting; fixing; cathode ray tubes