A cathode ray tube includes a display for presenting an image, a deflection device,
and an electron gun including electron-generating cathodes for generating electron
beams. The CRT includes an electron beams controller for varying the trajectory
of at least a first electron beam of the electron beams as a function of the intensity
of at least the first electron beam, in order to compensate for changes in the
convergence angle between electron beams near the display. The electrom beam controller
is arranged between the electron-generating cathodes and the deflection device.
