Patent ID: 6781136
Filing Date: 2004-08-24
Classification: H01J

Abstract:
A negative ion emitting apparatus comprising:a DC high-voltage power supply section; at least one discharge electrode section connected to the DC high-voltage power supply section for emitting negatively charged electrons, the discharge electrode section having a proximal end and a distal end, the distal end of the discharge electrode section being exposed to air; and at least one load resistance section arranged between said DC high-voltage power supply section and said discharge electrode section so as to restrict the flow of electrons from said DC high-voltage power supply section to said discharge electrode section until a predetermined voltage is applied, wherein the discharge electrode section is operatively connected at a proximal end to a load resistance section so that current flows from the DC high-voltage power supply section through the load resistance section to the proximal end of each discharge electrode section causing negatively charged electrons to be emitted from a distal end of the discharge electrode section into the air.