Patents
Sitemap › H01 - Basic electric elements › H01J - Electric discharge tubes or discharge lamps › H01J 29 - Details of cathode-ray tubes or of electron-beam tubes of the types covered by group
Patents for H01J 29 - Details of cathode-ray tubes or of electron-beam tubes of the types covered by group (25,146)
04/1990
04/24/1990US4919634 Method of fabricating electrode of color picture tube electron gun
04/24/1990CA1268201A1 Cathode ray tube having a friction welded tubular pump stem
04/18/1990EP0364023A1 Combination of a display tube and a deflection unit, with reduced north-south raster error
04/18/1990CN1041479A Cathode-ray tube with its display front protected from undesirable electrification
04/18/1990CN1041478A Colour display tube device
04/18/1990CN1007675B Colour picture tube including deflection unit having picture balance correction means
04/17/1990US4917822 Mixed with sealing glass-frit, binder and solvent; permeable to decomposition products, easily removed
04/12/1990DE3834315A1 Screen shade
04/11/1990EP0362922A1 Cathode ray tube including a helical focusing lens
04/11/1990CN1041243A Electron gun for color picture tube
04/11/1990CN1041242A Color cathode ray tube of shadow mask type
04/10/1990US4916358 Kinescope grounding system
04/10/1990US4916357 Shadow mask assembly of a color cathode ray tube
04/10/1990US4915658 Reference and support system for flat CRT tension mask
04/10/1990CA1267685A1 Electron gun
04/10/1990CA1267684A1 Beam-index type color cathode ray tube device
04/10/1990CA1267683A1 Color picture tube having inline electron gun with coma correction members
04/10/1990CA1267682A1 Deflection yoke for adhesive assembly and mounting
04/10/1990CA1267680A1 Image display apparatus
04/05/1990DE3833133A1 Method for the production of an electrode system for an X-ray image intensifier
04/04/1990EP0361650A2 Green light emitting phosphor
04/04/1990EP0361587A1 Electron gun and method of manufacturing an electron gun,and display tube comprising such an electron gun
04/04/1990EP0361575A1 Method of vapour depositing an interference filter layer on the inside of a display window, a display window, a projection cathode ray tube and a projection television apparatus
04/04/1990EP0361571A1 Coma-corrected picture display system
04/04/1990EP0361455A2 Color cathode ray tube apparatus
04/04/1990EP0361266A2 X-ray image intensifier
04/04/1990EP0360965A1 Glass for projection cathode ray tube faceplate
04/04/1990EP0360906A1 X-ray image intensifier
04/04/1990EP0360868A1 Slot-type shadow mask
04/04/1990CN2055641U High resolving power inner-deflection system
04/03/1990US4914724 Electron gun for cathode ray tube
04/03/1990US4914511 Projection color TV using CRTs having interference filters with different number of layers
04/03/1990US4914510 Method for improving the white field uniformity of a projection color TV using CRTs having interference filters, projection color TV and CRTs resulting from the method
04/03/1990US4914350 Picture display device with interference suppression means
04/03/1990US4914349 Photo-electric conversion tube with optical fiber plate
04/03/1990US4914296 Infrared converter
03/1990
03/28/1990EP0360627A1 Face plate for a colour television tube
03/28/1990EP0360134A2 Cathode ray tube
03/28/1990CN1007388B Colour kinescope
03/28/1990CN1007387B Cathode ray tube having internal magnetic shield
03/27/1990US4912362 Sturdy oxide cathode for cathode ray tube
03/27/1990US4911668 method of attaching coma correction members to an inline electron gun
03/22/1990WO1990003042A1 In-line colour picture tube
03/22/1990DE3830974A1 Method for puttying (cementing) a protective screen
03/21/1990EP0359345A2 Projection TV tube system
03/21/1990CN1040706A Color cathode ray tube and envelope for use with color cathode ray tube
03/21/1990CN1040705A Electron gun assembly having reinforced heater tab with locating means
03/21/1990CN1040704A Color cathode-ray tube having heat dissipative electron reflective coating on color selection electrode
03/21/1990CN1040703A Method for preparing improved lithium-silicate glarereducing coating for cathode-ray tube
03/21/1990CN1007304B Electron beam deflection yoke
03/21/1990CN1007303B Apparatus in cathode ray tube for reducing the magnetic field strength in the tube environment
03/20/1990USRE33183 Image intensifiers and method of producing same
03/20/1990US4910429 Cathode ray tube which is small and uses a small amount of power
03/20/1990US4910090 EMI/RFI shield for visual display terminals
03/14/1990CN2054570U High definition tv pickup tube target
03/14/1990CN1040459A Colour display tube
03/14/1990CN1007192B Colour image display tubes and its mfg. method
03/14/1990CN1007191B Electron tube
03/13/1990US4908591 Static convergence device for television picture tube
03/13/1990US4908550 Cathode ray tube apparatus
03/13/1990US4908547 Beam index type color cathode ray tube
03/13/1990US4908539 Display unit by cathodoluminescence excited by field emission
03/13/1990US4908232 Applying film forming solution comprising solvent and silicon alcoholate to surface of cathode ray screen, rotating, drying to form silicon dioxide
03/08/1990EP0328549A4 Aplanatic image combiner for use in projection television systems.
03/07/1990EP0357358A2 Electron gun assembly having a reinforced heater tab with locating means
03/07/1990EP0357256A1 Color cathode-ray tube
03/07/1990EP0357114A1 X-ray image intensifier tube persistence
03/07/1990EP0357070A2 High-contrast fiber optic diffusion faceplate with radiused fibers
03/07/1990EP0356823A1 Color cathode ray tube and envelope for use with the color cathode ray tube
03/07/1990CN1040285A Colouring filter and cathode ray tube
03/06/1990US4906959 Method of dividing a sintered oxidic ferromagnetic ring core and a deflection unit
03/06/1990US4906897 Image intensifier tube
03/06/1990US4906893 X-ray image intensifier and method of manufacturing the same
03/06/1990US4906892 High luminance color screen for cathode ray tube and method for making a screen of this type
02/1990
02/28/1990EP0356229A1 Method for preparing improved lithium-silicate glare-reducing coating for a cathode-ray tube
02/28/1990EP0355893A1 Method of manufacturing a colour display tube
02/28/1990EP0355124A1 Process and apparatus for the manufacture of cathode ray tubes having tension masks.
02/27/1990US4904899 Projection cathode ray tube
02/27/1990US4904898 Monochrome cathode ray tube electron gun with high voltage electrode lens
02/27/1990US4904218 Color cathode ray tube
02/27/1990US4904217 Vacuum tube including an electron-optical system
02/27/1990US4904054 Projection apparatus for projection television receiver
02/27/1990US4904049 High-contrast fiber optic diffusion faceplate with radiused fibers
02/27/1990CA1266297A1 Luminescent display cell
02/22/1990WO1990001848A1 Cathode ray tube
02/22/1990WO1990001791A1 Methods and apparatus for improving cathode ray tube image quality
02/22/1990WO1990001790A1 Panel for cathode ray tube
02/22/1990DE3927310A1 Etch stripe-resistant iron-nickel alloy prodn. - by continuous casting and heat treatment
02/21/1990CN2053380U Deflection modulation-type multi-beam electronic gun
02/21/1990CN1039930A Electron tube
02/21/1990CN1039929A Winding structure design of color picture tube scanning yoke
02/20/1990US4902994 Deflecting device for a cathode ray tube
02/20/1990US4902928 Color display tube
02/20/1990US4902329 Method of using external system for locating the geometric center of an internal lens element
02/20/1990US4902257 Methods and apparatus for making flat tension mask color cathode ray tubes
02/20/1990US4902023 Vacuum sealing gasket
02/20/1990CA1266082A1 Electron gun having a multiple lens between a beam- forming region and a main focusing lens for astigmatism correction
02/20/1990CA1266081A1 Multibeam electron gun having a transition member and method for assembling the electron gun
02/14/1990EP0354617A1 Method of manufacturing a colour display tube and a colour display tube
02/14/1990EP0354577A2 Color cathode ray tube
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