Patents
Patents for H01J 29 - Details of cathode-ray tubes or of electron-beam tubes of the types covered by group (25,146)
08/1990
08/28/1990US4952186 Method of making a color picture tube electron gun with reduced convergence drift
08/28/1990CA1273392A1 Colour picture tube including a deflection unit having a pair of plate-shape elements for picture balance correction
08/23/1990WO1990009681A1 Particle detector
08/23/1990WO1990009675A1 Electron gun with reduced-movement of cross-over point at increased beam current levels, and methods of operating same
08/22/1990EP0383581A2 Internal coating materials for a cathode ray tube
08/22/1990EP0382838A1 Methods and apparatus for improving cathode ray tube image quality
08/22/1990CN1044873A Color cathode ray tube system with reduced spot growth
08/22/1990CN1009323B Colour television display tube with coma correction
08/21/1990US4950952 Photocathode and method of manufacturing the same
08/21/1990US4950949 Color display tube having asymmetric deflection electrodes
08/21/1990US4950947 Cathode ray tube containing an anode which yields minimal X-ray emission
08/21/1990US4950946 Display device comprising a flat display window and low-microphonics linear thermionic wire cathodes
08/21/1990US4950945 Tension mask securement means and process therefor
08/21/1990US4950944 For use in a cathode ray tube
08/21/1990US4950943 Support for shadow mask in a cathode ray tube
08/21/1990US4950941 Color picture tube having improved shadow mask-frame assembly support
08/21/1990US4950192 Method of manufacturing of color display tube
08/16/1990EP0382554A2 Method of forming a metal-backed layer and a method of forming an anode
08/16/1990EP0382299A1 Color cathode ray tube system with reduced spot growth
08/16/1990EP0185082B1 Gullwing distortion corrected deflection circuitry for a square-planar picture tube
08/14/1990US4949010 X-ray attenuating ceramic materials
08/14/1990US4949009 Shadow mask mounting system for a color cathode ray tube
08/14/1990US4949008 Color cathode ray tube assembly with magnetic shield
08/14/1990US4948226 Lens alignment apparatus for use in a projection television
08/08/1990EP0381267A1 Method of manufacturing a saddle-shaped deflection coil for a picture display tube
08/08/1990EP0381189A2 Image pick-up tube
08/08/1990CN1009144B Cathode ray tube
08/08/1990CN1009143B Color picture tube with shadow mask
08/07/1990US4947083 Picture display device with interference suppression means
08/07/1990CA1272503A1 In-line type electron gun
08/02/1990DE3902622A1 High-tension connecting plug for a picture tube (cathode ray tube) having a connecting stub for accommodating the high-tension cable
08/01/1990EP0380147A1 Image intensifier tube comprising a chromium-oxide coating
08/01/1990EP0379810A2 Method of displaying grey scales on a matrix display screen
08/01/1990CN1009040B Method for mfg. electron gun electrodes
08/01/1990CN1009037B Method for mfg. x-ray image intensifying tube, and manufactured tube
07/1990
07/31/1990US4945416 Ultra-rapid electronic camera
07/31/1990US4945286 Microchannel plates formed with deposition using non-reactive gas
07/31/1990US4945284 Electron gun for color-picture tube device
07/31/1990US4945283 Cathode ray tube having a tubular focus structure
07/31/1990US4945282 Tin oxide, metal oxide coating
07/31/1990US4945247 Field emission electron gun system
07/31/1990US4945223 X-ray image intensifier tube with circuit to compensate for the effects fo magnetic distortion
07/31/1990US4944706 Cathode ray tube and method of making the same
07/31/1990CA1272242A1 Cathode-ray tube for projection television including a transparent optical coupler made of solid rubber
07/25/1990EP0379325A2 Light emitting device
07/25/1990EP0378537A1 Projection tv system with concave phosphor surfaces
07/25/1990EP0201609B1 Electron gun of picture display device
07/25/1990CN1044189A Electron gun and method for manufacturing same
07/25/1990CN1044188A Method and apparatus for assuring interchangeability of shadow masks and front panel during manufacture of color cathode ray tulees
07/24/1990US4943862 Cathode-ray tube with multi-layer resin coating on faceplate providing implosion protection
07/24/1990US4943755 Magnetic shielding with constant-current coils for CRT
07/24/1990US4943754 Color picture tube with flat appearing face plate
07/24/1990US4943753 In a cathode ray tube display device
07/24/1990US4943711 Image intensifier tube with input screen having a profile which satisfies a higher degree polynomial
07/24/1990US4943254 Method for the fabrication of an improved X-ray image intensifier tube, and intensifier tube, and intensifier tube obtained thereby
07/24/1990US4943183 Wire clamp
07/18/1990EP0378270A1 Picture display device
07/18/1990EP0378269A1 Picture display tube
07/18/1990EP0378268A1 Picture display device
07/18/1990EP0378267A1 Device for inspecting an interference filter for a projection television display tube
07/18/1990EP0378258A1 Image intensifier tube comprising coated electrodes
07/18/1990EP0378257A1 X-ray image intensifier tube comprising a selective filter
07/18/1990EP0377773A2 Improved head up display arrangement for automotive vehicle or the like
07/18/1990CN1044011A Electron gun for colour picture cathode-ray tube
07/18/1990CN1044010A Stem protecting base for cathode ray tube
07/17/1990US4942335 Blue-luminescing lanthanum-gadolinium-oxybromide, luminescent screen comprising such an oxybromide and cathode ray tube provided with such a screen
07/17/1990US4942334 Electron-gun system
07/17/1990US4942333 Shadow mask with border pattern
07/17/1990US4942332 Tied slit mask for color cathode ray tubes
07/12/1990CA2007407A1 Picture display tube
07/12/1990CA2007354A1 Device for inspecting an interference filter for a projection television display tube
07/11/1990CN1043825A Surface treatment of phosphor particles and method for crt screen
07/10/1990US4940920 Device to shield mask cathode tubes from the earth's magnetic field
07/10/1990US4940919 Support structure for vacuum tube components
07/10/1990US4940917 Color cathode ray tube having an in-line electron gun
07/10/1990US4940916 Electron source with micropoint emissive cathodes and display means by cathodoluminescence excited by field emission using said source
07/10/1990US4940300 Porous coating of zirconium based alloy
07/10/1990CA1271512A1 Spring construction connecting the colour selection electrode of a colour display tube to a supporting frame
07/05/1990DE3943173A1 Electron gun for colour TV cathode ray tube - has three beams produced with short distance between them to improve focussing
07/05/1990DE3900041A1 Arrangement for making contact with a multiplicity of control electrodes and method for producing said arrangement
07/05/1990DE3900037A1 Method and plant for the production of a planar cathode for a flat picture tube
07/05/1990DE3900036A1 Method for fitting a getter in a flat picture tube
07/04/1990CN1043586A Indirectly heated cathode assembly and its associated electron gun structure
07/03/1990USRE33253 Component mounting means for a tension mask color cathode ray tube
07/03/1990US4939415 For a CRT
07/03/1990US4939414 Color cathode ray tube with magnetic field conducting plates within envelope
07/03/1990US4939413 Flat type cathode ray tube
07/03/1990US4939412 Color picture tube having improved shadow mask-frame assembly
07/03/1990US4939000 Carbon slurry regeneration method
07/03/1990US4937931 Method of manufacturing a saddle-shaped deflection coil for a picture display tube
07/03/1990CA1271077A1 Method of producing a black matrix layer
06/1990
06/28/1990WO1990006969A1 Dispersed systems and method of manufacture
06/27/1990EP0375377A1 Display element
06/27/1990EP0375229A2 Surface treatment of phosphor particles and method for a CRT screen
06/27/1990EP0375064A2 Projection color television display devices with improved white field uniformity
06/27/1990EP0374572A2 Cathode with a control arrangement for a flat-picture tube, and mounting frame for such an arrangement
06/27/1990EP0374571A2 Surface de contact composée d'une suspension de graphite
06/27/1990EP0293470B1 Television image tube with composite front glass
06/27/1990CN1043406A Shadow mask with border pattern
06/27/1990CN1008587B Crt display apparatus