What is the incandescent filament?
To use the tungsten wire or tungsten rod as the cathode of the gas discharge lamp, in order to reduce its electronic work function
Most of them are used to make filament filament of various white tungsten filament lamp and halogen lamp and electrode of gas discharge lamp
In addition to a small amount of tungsten wire used as a high-temperature furnace heating material, the tube of heat and composite materials such as stiffeners
In fact, this very fine spiral tungsten wire into a straight line, this line as much as 1 meter long.
The incandescent filament is made of tungsten wire that is much finer than the hair, made of spiral.
