Patent ID: 6512328
Filing Date: 2003-01-28
Classification: H01J

Abstract:
A laser cathode ray tube, comprising:a vacuum bulb provided with a metal flange; a laser screen secured to the metal flange and having a laser target mounted at a side of the vacuum bulb, the laser target being electrically insulated from the metal flange; a high-voltage input passing through a wall of the vacuum bulb at a distance from the metal flange; an electrically conductive element disposed inside the vacuum bulb and connecting the laser target to the high-voltage input; and first and second screening electrodes mounted inside the vacuum bulb in an interspace between the wall of the vacuum bulb, the metal flange, the high-voltage input and the electrically conductive element, wherein the first and second screening electrodes are respectively connected to and extend from the high-voltage input and the metal flange towards each other so as to prevent electrical discharges between the metal flange and the high voltage input and between the metal flange and the electrically conductive element in the interspace.