IODINE LAMP EXCITED BY A CAPACITIVE DISCHARGE Russian patent published in 2022 - IPC H01J61/12 A61L2/10 A61L9/20 

FIELD: lighting equipment.

SUBSTANCE: invention relates to gas-discharge radiation sources, namely to iodine lamps with an unsoldered radiator in the form of a tube designed to produce radiation at a wavelength of 206.2 nm when excited by a capacitive discharge, and can be used in devices where narrow-band ultraviolet (UV) radiation with a wavelength in the region of 200-210 nm is needed. An iodine lamp excited by a capacitive discharge contains a switching power source, a reflector, a fan mounted on the side end of the housing to cool the lamp, and a radiator located in a metal housing with a window for radiation output, which is closed by a metal grid. The radiator containing iodine vapor consists of a quartz glass tube with soldered ends, at both ends of which cylindrical electrodes are installed on the outer surface, one of them is high-voltage, and the second is grounded. The radiator tube is curved from the high-voltage electrode, and both straight parts of the bulb are made at an angle to each other in the range of 15-90 degrees. The straight part of the tube is placed close to the grid on the output window, and the grounded electrode is close to the housing; the high-voltage electrode is placed at a distance from the lamp housing and the reflector; the fan is mounted on the end of the housing on the side of the high-voltage electrode and sucks the irradiated air through the radiation outlet window and holes located on the end of the housing opposite from the high-voltage electrode, and directs air from the lamp housing to the exhaust cabinet or filter.

EFFECT: increase in radiation power density at the exit from the window of an iodine lamp excited by a capacitive discharge and ensuring ozone safety.

1 cl, 1 dwg