What are the characteristics of automobile led lights and halogen headlights?
Car light refers to the lamps on the vehicle, which is a tool to illuminate the vehicle on the road at night, and also a reminder tool to send out various vehicle driving signals. There is no doubt that headlights are one of the most important parts of a car. Without headlights, it will be difficult for us to drive at night. With high-quality light sources, our roads will be safer at night.
Development history of car lights
Kerosene lamp (1886- 1904): When the car was first born, it had no function at all, let alone a light. It is said that in 1886, a driver got lost in the dark wilderness, and a civilian portable lamp took him home. This is also called the earliest thing for interior lighting. However, the luminous intensity of kerosene lamp is too low to meet the requirements of illuminating the front of the car and long distance. Therefore, in order to promote the lighting of the road ahead, people choose to place a Crupin reflector behind the kerosene lamp, making it the first spotlight in the world, which is also the earliest prototype of this lamp.
Acetylene lamp (1905- 1925): However, kerosene lamps were quickly replaced by acetylene lamps because of their low luminous power. Some people may ask that the incandescent lamp was invented as early as 1879. Why are acetylene lamps first used in cars? This is because the filament of vacuum incandescent bulb was carbon filament at that time, and the filament that was too soft could not withstand the fluctuation on the road and could not be used in headlights. And at that time, the brightness of acetylene lamp was almost twice that of electric lamp, so acetylene lamp became the first choice of lamps at that time. There have been other high light sources since then, but they all failed for various reasons. After all, as long as the acetylene lamp becomes the stable light source of early headlights, it will always be used around 1925.
With the development of automobile, the defects of acetylene lamp are gradually exposed: acetylene lamp shines by burning, and it is simply doused by rain on the road, and driving in bad weather has become a driver's nightmare. Secondly, acetylene lamps are not as durable as incandescent lamps. In addition, after acetylene is burned, it will produce a lot of sodium and calcium. This harmful substance, which can dissolve protein, will have strong irritation and corrosiveness when it falls on the skin, leading to serious adverse reactions such as shock and gastric perforation.
Incandescent lamp: With the development of electric lamp and the improvement of durability, acetylene lamp, together with its defects, gradually withdrew from the historical stage of lamp. On the contrary, incandescent lamps are becoming more and more complicated.
Halogen lamps: However, the luminous power of incandescent lamps is not high, so more energy-saving halogen lamps were born. The first halogen lamp for car lamps was born in the 1960s, and later the famous Haila was the manufacturer. In fact, halogen lamps are an upgraded version of incandescent lamps used in our lives. The use of halogen elements can improve the brightness of incandescent lamps by 1.5 times, and the service life of incandescent lamps is 2-3 times that of ordinary incandescent lamps. In order to improve the luminous power of incandescent lamp, the temperature of tungsten filament should be increased first, but the tungsten will increase accordingly and condense on the glass bulb, making it black. The blackening phenomenon of incandescent bulbs can be eliminated by filling halogen elements or halides in incandescent bulbs and using the principle of tungsten halogen cycle, which is the reason of halogen lamps.
Xenon headlights: In view of the disadvantages of incandescent lamps, such as low brightness, high power consumption and short life, Hailar, a professional lamp manufacturer, introduced exquisite xenon headlights to the market in the 1990s. Xenon lamp broke the luminous principle of tungsten wire invented by Edison. At the right time, high-voltage inert gas is filled into the lamp tube to replace the traditional filament, and xenon is excited to emit light with high-voltage current of 23,000 volts, forming a perfect white arc between the north and south poles. Xenon lamps have three times the brightness, half the energy consumption and seven times the service life of halogen lamps. Simply put, as long as there is no man-made damage, there is no need to replace the headlights within the service life of the vehicle for more than ten years. However, the xenon headlights used at first will cause glare to the opposite driver, which is a danger to safety. Later, the problem was solved by using active headlight height adjustment.
Headlights: After xenon headlights, there will be no ubiquitous LED headlights. Although it has been seen in many concept cars, due to the relationship between technology, cost and regulations, the loading of LED headlights has only begun in recent years.
Laser headlights: After LED headlights, laser headlights are called "the next logical step". The principle is that the blue light of the laser light-emitting diode will penetrate the fluorescent phosphorus material in the headlight unit and be converted into scattered white light. More energy-saving and fuel-saving summary: As an important automobile skill, the history of headlights is simply to synchronize with cars. Not only are all kinds of skills broken, but they are also closely related to automobile design. With the development of science and technology, the story of car lights will continue.
At present, there are three common headlight light sources: halogen, xenon and LED. What are their advantages and disadvantages?
Halogen headlamp
At present, halogen headlights are still the most common automobile light source. After thousands of experiments, Edison, the inventor of the king, finally made the tungsten wire glow after being electrified. Later generations improved and added halogen gas-iodine or bromine to the bulb, which is the halogen headlight we see now.
Its biggest advantages are simple structure, low manufacturing cost and mature technology. The brightness is also easy to control, and the penetration is relatively strong, and the penetration effect is excellent in extreme weather such as rain, snow and fog.
The disadvantages are also obvious, that is, limited irradiation distance, large heat, low efficiency and short service life. With the upgrading of cars, the number of cars using halogen light sources is decreasing year by year and will eventually be eliminated.
Xenon headlight
Xenon headlights are the most modified. The principle is that the inert gas-Xenon is filled in the ultraviolet-proof crystal glass tube, and then the vehicle-mounted 12 volt power supply is instantly raised to 23,000 volts through the supercharger. At high voltage, xenon will be ionized, and a light source will be generated between the two poles of the power supply.
Its advantage is that the brightness is much higher than that of halogen headlights, the price is not too expensive, and the modification is relatively easy.
The disadvantage is also very prominent, that is, it takes some time to achieve the lighting effect after opening, and the penetration effect is also very general in extreme weather such as rain, snow and fog. In addition, if xenon headlights are not used with lenses, it is easy to make the lights diverge and affect driving safety.
LED headlamp
LED headlights are now standard in some high-end cars. It is similar to an energy-saving lamp at home, and it is a light source generated by a power generation diode, which can directly convert electric energy into light energy without wasting. The same electric energy is more than three times that of halogen lamps, and it will not overheat, so it can be said that it is bright and saves electricity.
The advantages of this lamp are more energy-saving and environmental protection, low cost, long service life, high brightness, higher low-voltage safety and small size. Each bulb can be arranged into the required shape at will. For example, Audi's matrix headlights can reduce the lighting for pedestrians and vehicles, thus forming a kind of protection.
Which brand of car led headlights is better?
Now all kinds of brand lights on the market dazzle us. When we refit or replace lamps, the choice of lamps brands is often a bit at a loss. Today, I will introduce several good lighting brands to you.
Philips headlights: Philips headlights cover halogen lamps, xenon lamps and mainstream led headlights. Needless to say, the quality of these headlights will definitely gain the trust of international brands. Take our Chengdu Tianyi headlights as an example, Philips xenon lamps have always been trusted by riders, and the response to the use effect is also very good. As the leading brand in automobile lighting market, Philips xenon lamp accurately simulates the luminous position of tungsten wire. The original lamps and lanterns are perfectly matched with the light source, and the light is completely asymmetrical. Car lamp is a professional-grade automobile chip independently developed and manufactured by Silicon Valley. And according to the different functions of different models, the corresponding products are launched. Therefore, it is right to replace Philips xenon headlights with Chengdu Tianyi headlights.
Osram: As a provider of automotive lighting technology, Osram is one of the two major automotive lighting brands in the world. Its automotive lighting solutions include xenon lamp lens, led headlight lens, driving assistance function and other invisible light technologies, as well as the field of automatic driving. Chengdu Tianyi Automobile Lamp is committed to providing replacement solutions for lamps such as OSRAM xenon lamp lens and led headlight lens.
Gege: Gege is an emerging brand in the market at present. Its main products are xenon lamp lens and led headlight lens. Compared with the products of the above brands, it has more cost-effective advantages, and its lighting effect also has certain advantages. Million insurance, more peace of mind when changing lights, national alliance of 100 households. This is a purpose proposed by the grid. So don't worry about product guarantee. According to the user response of Chengdu Tianyi Headlights, the effect is also very good.
Reciting LED car headlights adopts the current mainstream fan for heat dissipation, which belongs to active heat dissipation. The fan runs at high speed, blowing air, circulating air in the sealed lamp cup, and taking away heat. In addition to the fan, the lamp body is made of aviation aluminum with excellent thermal conductivity, and the protective cover is also made of aluminum. These parts play the role of heat dissipation. These are not enough. Coupled with the unique heat dissipation structure design of Lei Bai led headlights, the heat dissipation effect can be maximized, and the driving safety can be ensured continuously and stably.
Huojing Optoelectronics is a technology company focusing on automotive LED lighting, with an expert team with 20 years of research and development experience in the field of automotive lamps. Huojing Optoelectronics has the core technology of LED lamps-the preparation of LED light sources, and the most complete industrial chain layout in the whole industry. Automobile lamps (mainly LED car headlights, LED working lamp, LED downlight, etc.). ).) sold all over the world, won the unanimous affirmation and praise of customers. The company actively laid out the intellectual property rights of LED lamps and obtained key patents such as structure, heat dissipation and optics.
The new M-series modified universal Shellet led headlight h7h4 super bright bulb headlight and low beam spotlight h 1 have good light, which is much better than candle lamp, and the low beam lamp has a good feeling and a great experience.
Next, let's take a look at the advantages of LED lights.
one
Good monochrome, rich colors, rich.
Color saturation reaches 130% full color, and the light is clearer and softer.
2
Long life and good impact resistance.
LED is a semiconductor element. Different from incandescent lamp, it has no vulnerable moving parts such as glass and tungsten wire, so the fault is extremely low and there is no need for maintenance.
three
Short response time
0 seconds, especially suitable for the light source of car lights, which won valuable time for drivers to reduce accidents.
four
High efficiency and low energy consumption
LED light source can directly produce the colors such as red and amber required by automobile lamps, without color filtering, without loss, energy saving and low consumption, and the utilization rate of electric energy is as high as 80%.
five
Small size, light weight
With its characteristics, we can design various styles of lights and small lights, which provides space for automobile modeling design.
six
Green light source
LED has good monochromatic spectrum, no redundant infrared and ultraviolet spectrum, no harmful substances containing mercury, and less heat and radiation.
seven
LED has good heat dissipation and low temperature.
The cooling scheme of electro-optic LED intelligent headlight system with three-effect cooling mode, liquid copper heat pipe technology, unique aerodynamic engineering cooling system and customized intelligent control high-efficiency cooling fan. When LED headlights are working, they are in a "frozen ice" state for a long time, which greatly guarantees the safety of vehicles.
eight
Plane light, more concentrated lighting effect.
Blind spot auxiliary lighting is introduced to illuminate the front, and two auxiliary lighting are provided to reduce blind spots at night. Driving at night, the importance of headlights is self-evident, and walking at night should be the same as during the day.
nine
Simple installation, no need to modify.
Installing LED headlights does not need to be perforated and rerouted like refitting xenon lamps. The electro-optical LED headlights adopt international standard connectors specially designed for special vehicles, which can be connected with the halogen lamps of the original vehicle to realize the non-damage upgrade of the original vehicle.
10
Professional lamp type, accurate luminous point. What are the characteristics of automobile led lights and halogen headlights? Which brand of automobile led headlights is better @20 19?