1. What does a car lens mean
What is a car lens
The car lens is actually a hemispherical Glass cover, the light will change when it comes out of the lens; if the lens is not installed, all the light will be scattered around, whether it is lighting or safety.
What is the use of the car lens
1. Because the lens has strong light-gathering ability, so use it to illuminate the road, not only the road is bright, but also clear.
2. Due to the small dispersion of light, its light range is farther and clearer than that of ordinary halogen lamps. Therefore, it enables you to see things in the distance at the first time, avoiding crossing the intersection or missing the target.
3. Compared with the headlights with traditional lamp caps, the headlights with lens-type lamp caps have uniform brightness and strong penetrating power, so they have strong penetration in rainy days or foggy weather. force. In this way, oncoming vehicles can receive the light information at the first time to avoid accidents.
4. The lifespan of the HID bulb inside the lens is 8 to 10 times longer than that of the ordinary bulb, thus reducing the unnecessary trouble caused by having to change the bulb all the time.
5. The lens xenon lamp does not need to install any power supply system, because the real HID gas discharge lamp must have a voltage stabilizer, 12V voltage, and then convert the voltage to normal voltage, stable and continuous supply Xenon bulb glows. Thereby, it can play a power saving function.
6. Notify him when he encounters the lights of those large trucks or cars. If it is still useless, then you inform him with high beams.
Second, the difference between car lens led lights and general led lights
1. In addition to focusing, the lens with a lens has another feature, that is, the light source is very distributed Evenly, there will be no strong light in some places and weak light in some places. The light of a car without a lens is scattered, and the light source is not easy to control.
2. Whether a car headlight has a lens is actually decided from the moment the car leaves the factory. Generally speaking, the low beam has a lens, and the high beam does not have a lens.
3. The original use of the lens for the low beam is that the low beam is the most commonly used. When the low beam is turned on, there is a very obvious tangent line, which means that the excess light is cut off. When the light is low, it will not affect the lighting of oncoming vehicles.
4. The high beam generally does not have a lens, because the high beam does not need a tangent, and there is no need to cut off excess light.
Third, how much is the car lens
It is about 1,000 yuan, and the imported ones are in the thousands, and the domestic ones are relatively cheaper, only a few hundred block, you can choose it according to your own needs.
Four. Car lens modification
1. Unplug the power socket of the bulb;
2. After unplugging the power socket ,Remove the waterproof cover behind the bulb;
3. Take the bulb out of the reflector, the bulb is usually fixed by a steel wire clip, and the bulb of some models also has a plastic base;
4. Put the new bulb into the reflector.
5. How to adjust the lens of the car
1. After turning on the high beam, stand in front of the headlight, keep your feet as vertical as possible to the headlight, and observe the high beam Take the light center (that is, the brightest group of light emitted by the headlight) as the center point where the light hits the foot, and write it down;
2. Then go to the wall and move vertically Go to the wall (don’t go astray), and make a mark on the wall according to the position of the optical center on the foot, use the screw to the scale tooth of the rotating headlight, and be sure to shine the optical center on the mark you engraved (the distance between the upper and lower parts cannot be more than 10 cm);
3. For example, when turning on the lights, there is no other person in the car, you can adjust the light center a little higher (not more than 5 cm), the reason is very simple, the empty car should be higher , the car will sink a little bit, and the light adjustment point is mainly reserved.
Six. Why can’t the high beam be added with a lens
This is to prevent the high beam from gathering, and the divergence can illuminate farther and wider. The high beam is mainly used to supplement the dark area of the low beam. If the high beam is equipped with a lens, the beam will be concentrated and illuminated directly in the distance. And the direct view can not see the high road signs, affecting driving. After the high beam is converted to the xenon lamp, the light divergence is normal, because the lamp bowl of the high beam is designed in this way, therefore, no lens can be added for lighting.
