1
What is?
tungsten halogen headlamps is made of injection of iodine or bromine in the halogen gas incandescent light bulbs, at a high temperature sublimation tungsten halogen chemical action, re-cooled tungsten solidifying on the tungsten wire forming the loop balanced, avoiding premature breakage tungsten.
2
Characteristics
Halogen is generally higher than the operating temperature of the incandescent lamps, and its luminance efficiency is higher . However, at such high temperatures, ordinary glass may soften and therefore halogen bulbs need a higher melting point quartz glass. And because the quartz glass can not block ultraviolet light, usually a halogen bulb and therefore require additional ultraviolet filter. However, because of its unique operating principle, incandescent halogen bulbs higher than the average operating temperature, higher brightness and longer life.
3
Principle
The basic principles and the light emitting incandescent halogen lamps are thermal radiation source. The difference is that a tungsten halogen lamp which charged special working gas, which composition is 95 percent mixed gas (krypton and methylene bromide), and 5 percent high purity nitrogen, the gases circulating in the establishment of a tungsten halogen lamp. The specific process after tungsten filament volatilize, move to a lower temperature place, and then combined to generate at the tube walls and WBR2 of Br2, while at higher temperatures, will WBR2 decomposed, will return to the filament W on, BrBack to the working gas, which is the whole process of tungsten halogen cycle. By such a tungsten halogen cycle, tungsten filament so that the filament does not volatilize gradually blown, not because the tungsten deposition on black lamp bulb, its life is greatly extended.