| 摘要 |
A COLOR PICTURE TUBE WHICH PREVENTS A CHANGE IN CONVERGENCE DUE TO CURRENT LEAKED FROM A RESISTOR DURING OPERATION OF THE COLOR PICTURE, THUS, PROVIDING A STABLE AND SATISFACTORY CONVERGENCE CHARACTERISTIC IN THE OVERALL REGION OF THE SCREEN. THE COLOR PICTURE TUBE COMPRISES A MAIN ELECTRON LENS PORTION, A DEFLECTION YOKE, AND AN INLINE ELECTRON GUN THAT INCLUDES AN ELECTRON BEAM GENERATING PORTION FOR GENERATING THREE ELECTRON BEAMS IN LINE CONSISTING OF A CENTER BEAM AND A PAIR OF SIDE BEAMS. DISTANCES BETWEEN THE CENTER AXISOF THE CENTER BEAM PASSAGE HOLE AND THAT OF EACH OF THE SIDE BEAM PASSAGE HOLES IN A FIRST ELECTRODE (G5), A SECOND ELECTRODE (GM) AND A THIRD ELECTRODE (G6) ARE REPRESENTED BY SG(1), SG(2) AND SG(3). THE FIRST AND SECOND ELECTRODES ARE SEPARATED BY A GAP L(1); AND THE SECOND AND THIRD ELECTRODES ARE SEPARATED BY A GAP L(2). THE DISTANCE SG(2) IS SET TO SATISFY THE RELATIONSHIP: SG(2)=<L(1 )XSG(3)+L(2)XSG(1 )>/<L(1 )+L(2)>.FIGURE 3A
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