working principle Compare the pros and cons First of all, in terms of brightness, Xenon headlights are absolutely victorious. The traditional halogen lamp has a headlight bulb of 55W and a brightness of only about 1000 lumens. The dedicated dual-helium angel eye headlamp bulb produces 35W of light with a power of 35W, and the brightness is increased by 300%. In addition, the general xenon headlights are combined with the lens, and the halogen headlights are combined with the reflector, and the lens has the function of collecting light. Therefore, the combination of the xenon lamp + lens is much brighter than the combination of the halogen + reflector, and at the same time Display grade. Secondly, in terms of energy saving, Xenon headlights are also much better than halogen headlights. The double xenon headlamps are only 35W, and the 55W halogen lamps emit more than 3.5 times of light, reducing power loss by 40%, reducing the load on the car's power system and saving energy. At the same time, HID xenon lamps are electronically activated gas-emitting, with no tungsten wire, so they last longer. Thirdly, from the perspective of sight, the light emitted by the xenon lamp onto the ground is brighter and the visual effect is better. However, xenon lamps are very bright in the range of effective light, and appear very dark in other places, while halogen headlights are relatively uniform in brightness and do not exhibit significant visual attenuation. Fourth, from the perspective of the other vehicle and pedestrians, especially the high beam is also a model of the xenon lamp, which is more "horrible" than the halogen lamp. For those drivers who are facing the opposite direction, if the glare is used to describe the effect of the halogen lamp to turn on the high beam, then it is not an exaggeration to open the high beam with the "extremely glare", which can cause blindness of the human eye in an instant. Therefore, it cannot be said that Xenon headlights are definitely better than halogen headlights. In general, they have their own advantages and disadvantages. Of course, night driving must pay attention to safety, even if the headlights are bright again, you can't avoid the appearance of blind spots. You must drive carefully! Halogen headlights: Halogen lamps began to be applied to the body in the 1970s. The principle of illumination is very similar to that of ordinary incandescent lamps, that is, the heat generated by the spiral tungsten filaments in the lamp is illuminated by the tungsten wire itself. Limit of melting point. Xenon headlights: The English abbreviation for Xenon lamps is HID gas discharge lamps, which were first used in air transportation. It has no filament, but uses high-voltage positive and negative electricity to stimulate the helium in the bulb to react with rare metals to illuminate. At present, we often see traditional headlights and fog lights. There is also a row of LED light sources in front of the car, and its role is not what lighting, this is the LED daytime running lights. The LED daytime running light is a daytime driving light that is mounted on the front of the car. Jane's main function is not to enable the driver to see the road, but to improve the visibility of the vehicle in a situation where the daytime driving line environment is poor, so that pedestrians and cars and between cars and cars can be earlier and better. The detection and identification, prevention of accidents in advance, and ensuring driving safety. And often with the headlights is the lens. The lens has a strong concentrating ability, uniform brightness, and strong penetrating power, which allows the light range to be farther and clearer than the range of the light without the lens. Headlight cleaning: When the car is driving at night or in low light, rain and dust will reduce the illumination of the headlights by 90%, and the driver's line of sight is seriously affected. For driving safety, there is a big hidden danger. . The headlight washer provides a simple and effective way to solve this problem. Laws in many countries now require that headlamp cleaning systems be installed on cars. The current common headlight cleaning device is a high pressure cleaning system. The height of the headlights is automatically adjusted: the automatic control of the height projection headlights is adjusted according to the weight of the vehicle and the speed of the vehicle to adjust the illumination distance, especially when going up and down. Automatic headlights: In the environment where the light suddenly becomes dark when driving, the headlights will automatically turn on and automatically turn off when the light is sufficient. There is also a situation in which the near and far lights are automatically changed when the car is parked at night. The principle is to use an electronic component such as a photoresistor as a sensor (mounted on the back side of the interior rearview mirror, etc.), and send an electronic signal to the ECU (the electronic control unit, which means a CPU of the computer), and then the ECU according to the signal Control the switch of the headlights and the change of the far and near light. Curved Auxiliary Lighting: The Static Cornering Light is an auxiliary source that illuminates the turning area. At intersections or corners, corner-assisted illumination corner lights automatically illuminate as the steering wheel deflects or the turn signal flashes, so the driver can immediately spot pedestrians near the corners, reducing accident rates. It consists of a separate halogen bulb and a small reflector mounted behind the parking light reflector to illuminate a sector of a radius of several meters. Active steering headlights: Active Front-lighting System (AFS), also known as adaptive steering headlight system, can continuously adjust the headlights according to the steering wheel angle, vehicle yaw rate and driving speed. The front steering angle keeps the direction of the light in line with the current direction of the car to ensure optimal illumination of the road ahead and to provide the driver with the best visibility, thus significantly enhancing the safety of driving in the dark. The Fiber Optic Modem provides electrical to optical conversion of electronic communication and data signals for transmission using tactical fiber optic cable assemblies. The FOM simultaneously receives incoming optical signals and converts them back to the original electronic signal allowing for full duplex transmission. 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The halogen lamp began to be applied to the vehicle body in the 1970s. Its illumination principle is very similar to that of an ordinary incandescent lamp. That is, the heat of the luminescent light is limited by the melting point of the tungsten wire after the heat is generated by the spiral tungsten wire in the lamp.
The English abbreviation for Xenon lamp is HID gas discharge lamp, which was first used in air transportation. The illuminating principle of xenon lamps is quite different from the halogen and incandescent lamps described above. It does not have a filament, but uses high-voltage positive and negative electricity to stimulate the helium in the bulb to react with rare metals to illuminate. The small glass sphere we usually see in the xenon lamp is the source of the xenon lamp. Filled with helium and a small amount of rare metals.
The difference between halogen headlights and xenon headlights has been introduced above, so the following small series will talk about the common technology configurations equipped with car headlights. In terms of the types of headlights, the current common headlights are divided into halogen headlights, xenon headlights and LED headlights.
LED headlights: LED is the abbreviation of Light Emitting Diode, which has a very popular Chinese name - LED. LED headlights have the characteristics of high luminous efficiency, more energy saving, longer life and better durability.
N-NET Fiber Optic Modem NT-277 is a type of RS-232/RS-485/RS-422 serial port fiber optic modem. It adopts industrial standard design and its wall type outface design supports DIN-rail standard lead rail installation, featuring easy installation. Multil /Single mode ,fiber optic modem can be mounted on N-NET chassic.
What do you know about LED headlights, halogen headlights, xenon headlights?
More and more technology configurations are everywhere in every detail of the car, and headlights are no exception. Is the Xenon headlights better than the traditional halogen headlights? Xiaobian today talks about the pros and cons of the two.