Resources Contact Us Home
Process of analysis of the convergence of a cathode-ray tube with three ganged guns and a device forming a pick-up allowing implementation of this process

Image Number 2 for United States Patent #4364079.

A process of analysis of convergence along two orthogonal components of the three guns in a color television tube with ganged guns involves, for example, placing an analysis slit 20 in front of the screen of the cathode-ray tube in order to observe at least three luminophore columns 15 of different colors in full width, of causing a luminous line of a single color to pass by, turning on only the corresponding gun in front of said slit, and of measuring the current in the deviator of the cathode-ray tube for which the maximum light intensity is observed through the slit, and of beginning these operations again for each of the three colors, the measured values making it possible to deduce the convergence gaps of the beams at the placement of the slit. The invention allows automatic convergence correction of the cathode-ray tube.

  Recently Added Patents
Method and system for encrypting data in a wireless communication system
Fast carrier allocation in multi-carrier systems
Polyurethane resin, toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
Light emitting device and light emitting device package
Modular connector for touch sensitive device
Output device, source apparatus, television set, system, output method, program, and recording medium
Video editing apparatus
  Randomly Featured Patents
Tape automated bonding for electrically connecting semiconductor chips to substrates
Remote control apparatus for a rotating television camera base
Method and apparatus for controlling storage time in charge storing photoelectric converter
Pullout hand-held shower
Ice delivery mechanism in storage bin-type ice dispenser
Concrete shell assembly
Method for preparing lithium manganate having spinel structure
Method and system for false path analysis
Physical methods of dispersing characteristic use particles and compositions thereof
Performance of computer programs while they are running