Since 1898, people have used electricity for headlights and taillights. After more than 100 years of development, car headlights have gradually formed a complete system. With the advancement of technology, car lights have experienced halogen, helium, and LED. The transition pattern of lasers and various types of lighting products all have various limitations. Don't blindly listen to advertising. Below, I will introduce the product features, advantages and disadvantages of various lighting products.
The application history of halogen headlights in automobiles can be traced back to the 1970s. In fact, it is an upgraded version of incandescent lamps for household use, except that halogen elements are added, the brightness is increased by 1.5 times, and the lifespan is increased by 2-3 times. Until the previous years, this type of lighting was the most common type of headlight source in cars produced by major car manufacturers. As a standard for low-priced cars, halogen lamps have short-boards on some products, but because they are cheaper, they are still very affordable options for some economical models with limited cost. However, this kind of light source is not recommended now. .
Since the development of today, more and more models have gradually abandoned the use of halogen headlights, major brands in the low-end models began to popularize the application of xenon headlights, xenon lamps are three times brighter than halogen lamps, energy consumption is only Two-thirds of halogen lamps. However, the response is slow, and it takes about three to four seconds to reach the optimal brightness by lighting the headlights. However, the principle of xenon headlights determines the direction of the light source is uncertain, and basically requires the addition of a lens to make the beam irradiation direction more consistent.
Laser headlights are basically a comprehensive upgrade of LED light source
LED believes that the focus on the display is not unfamiliar, today's LCD backlight is LED, LED can directly convert electrical energy into visible light, the conversion efficiency is very high, the whole led light source sounds like a tall thing. Nowadays more and more luxury brands use all-LED as the light source of the headlights, and after the market advances, more brands will also drop the LEDs into the small car market. In the future market trend of energy saving and environmental protection, LED light source is likely to become the mainstream.
The whole LED light source sounds like a tall thing.
The energy consumption of LED light source is only 1/20 of that of halogen lamp, and the service life can reach more than 100,000 hours. You may not know the concept of 100,000 hours. Basically, your car will be scrapped and the lights can be used normally. Compared with Xenon headlights, it is smaller in size and can be lit instantly. It is very safe for driving safety, but the requirements for heat dissipation and ventilation of LED light source are also very high.
Laser headlights can reach the front 600 meters
Laser headlights are currently the most advanced technology in automotive lighting. All aspects are basically a comprehensive upgrade of LED light source. It is unique in terms of illumination distance and can reach the range of 600 meters ahead. It is necessary to know that LED high beam can only be seen. Irradiated to 300 meters. At present, the only drawback is that the cost is too high to be popular. The above four types of headlights are the rough introductions that the author brings to everyone.
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