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
Nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and its methods of preparation
Data recording apparatus with recording control based on defect block and control method thereof
Out-of-order load/store queue structure
Handover signaling in wireless networks
Contamination barrier
Data processing apparatus including reconfigurable logic circuit
Method of and apparatus for image denoising
  Randomly Featured Patents
Audio mixing circuit
Fastening assembly
Dynamic content management for wireless communication systems
Repairing defective pixels
Method and apparatus for illuminating a flat panel display with a variably-adjustable backlight
Golf ball
Enclosure for a studio
Spray gumming unit
Long life lithium batteries with stabilized electrodes
Push and rotary operating type electronic component