Ultrahigh pressure mercury lamp and ultrahigh pressure mercury lamp lighting apparatus
A technology for lighting devices and mercury lamps, which is applied to high-pressure discharge lamps, lighting devices, discharge lamps, etc., can solve the problems of reduced illuminance and deformation of electrodes 90, and achieve the effects of suppressing deformation and maintaining high illuminance
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[0103]
[0104] according to Figure 1 ~ Figure 4 With the shown configuration, AC lighting type lamps (A) to (F) having the following specifications were produced. In addition, in the following specifications, the arc tube, the distance between electrodes, the material of the enclosure, and the electrodes are common specifications for all lamps.
[0105] The luminous tube is made of quartz glass, and the internal volume of the luminous part is 0.0825cm 3 .
[0106] The distance between the electrodes is 1.1 mm.
[0107] In the luminous tube, mercury, rare gas, and bromine as a halogen are enclosed, and the amount of mercury enclosed is 0.29mg / mm 3 , The amount of halogen enclosed is 3×10 -3 μmol / mm 3 .
[0108] The electrode is made of tungsten with a purity of 5N, and other specifications are shown in Table 1.
[0109] The input power is 275W.
[0110] Table 1
[0111]
[0112] For lamps (A) to (F), the AC current at a stable lighting frequency of 370 Hz is supplied from the power sup...
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