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Halogen, xenon, LED? A wide range of automotive headlamps, the effect is also very different, today we will talk about the car headlights light of those things.
At present, we can see the headlight light source has the following four kinds, halogen headlamps, xenon headlamps, LED headlamps, laser headlamps.
Halogen headlamps, which is the most common we have seen the most ancient headlights, the principle may be traced back to the era of Edison. It is characterized by a warm yellow light, the brightness is relatively low, can only meet the basic use, but he is not without advantages, in rainy days or foggy days, warm yellow light penetration is the best.
Next is the xenon headlamps, which is based on the principle of high pressure ionization of xenon bulbs, thus emitting light. It is characterized by high brightness, probably is several times of the halogen lamp, electric energy into light energy efficiency is improved by a large margin, which is bright and power, but its complex structure and higher costs, so the more common in the high allocation of vehicles.
LED headlamps, because the speed of light, before the LED is commonly used in the brake lights, and now LED light source also began to use on the headlights. Solid semiconductor chips as luminescent materials. It can be said that the advantages of a lot of LED headlamps, energy saving, high brightness, light fast, stable performance, and now more and more cars began to use LED headlamps, which is the future trend of lighting.
Laser headlights, he is not like we have seen a laser beam, like direct lighting. But in the headlight, the laser light emitting diode to illuminate another group of light-emitting material, so that the beam will not cause harm to the eyes. Laser headlamps reached two times the distance of LED headlamps, is not very powerful.
The light source headlamp on us today said it, and I hope to help you, our next program.