1. Up to now, automobile headlights have become a means to highlight personality and grade. Don't you see that Audi has won more people's favor due to the beautiful design of headlights. Now many consumers are more and more concerned about the configuration of headlights when buying cars. From the most basic halogen and advanced xenon headlights to forces Nouvelles led and laser headlights full of sense of future.
2. Halogen headlights. Speaking of the history of the application of halogen headlights to automobiles, it should be traced back to the 1970s, which is also the most common light source type of automobile headlights among all kinds of automobiles of major automobile manufacturers. Because the price of halogen lamp is relatively cheap, it is very applicable to reduce the manufacturing cost for some economical models with low price.
Halogen lamp is actually an upgraded version of incandescent lamp we use in our life. The application of halogen elements can improve the brightness of incandescent lamp by 1.5 times, and the service life is also 2-3 times that of ordinary incandescent lamp. In order to improve the luminous efficiency of incandescent lamp, firstly, the temperature of tungsten wire must be increased, but the corresponding sublimation of tungsten will be caused and condensed on the glass shell to blacken it. When halogen elements or halides are filled into the incandescent lamp, the blackening of the glass shell of the incandescent lamp can be eliminated by using the principle of halogen tungsten cycle, which is the reason of the halogen lamp.
3. On the contrary, the combination of halogen plus reflector. Without the help of lens, although the light brightness is not as bright as xenon lamp, the brightness of other areas is relatively uniform, and there will be no obvious visual attenuation area, so it will be safer to drive at night.