Spot knocking process of cathode-ray tube
专利汇可以提供Spot knocking process of cathode-ray tube专利检索，专利查询，专利分析的服务。并且PURPOSE:To enable a stray emission source covered by the second grid or the like of a cathode-ray tube enclosing an electron gun having a composite main lens system to be removed by spot knocking. CONSTITUTION:The second grid 4, the fourth grid 6 and the sixth grid 8 are put in a floating state, while the first terminal 21 to which a heater 1, a cathode 2 and the first grid 3 are conductively connected, and the second terminal 22, to which the third grid 5 and the fifth grid 7 are conductively connected, are connected to a power supply 31 for spot knocking, followed by impressing a specified voltage between the first terminal 21 and the second terminal 22 so that spot knocking may be performed. For said voltage, ordinary pulse-shaped high voltage is used, while from two to three times of the voltage to be impressed on an actual operation of a cathode-ray tube is used for peak value. According to said method, owing to the floating state of the second grid 4, the partial voltage divided according to the capacity or the like provided among respective grids is impressed so that a stray emission source in the periphery thereof including the side of the first grid 3 of the second grid 4 can be removed by spot knocking.，下面是Spot knocking process of cathode-ray tube专利的具体信息内容。
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