Automotive lamps with the development of the automobile industry, the scientific and technological progress, the emergence of new sources, as well as people's sense of aesthetics, such as the continuous improvement of the structure more complex, increasingly sophisticated technology, more and more perfect functions. Hyundai Motor has become a lamp with a high-tech content of the fine crafts, is a pair of beautiful cars, "big eyes." The evolution of automotive lamps gone through four major stages, and the fourth generation of the emergence of LED car light, car lights on the far-reaching changes.

    Into the third generation, fourth-generation light source period

    Automotive world there are lights. Automotive lamps can be divided into two categories: lighting and signal installation instructions. The function of lighting is to illuminate in the dark car in front of the road, there are headlights, front fog lamps, reversing lights and license lights, generalized to include the car lights, dashboard lights and other lights and luggage. Signal device's function is to indicate to other road users of the existence of the vehicles traveling the state, there are shift lights, brake lights, position lights and fog lamps, such as after. There are lights there are norms and standards for lights, the light source for the lights, light color, light intensity, light type and installation location of the provisions made and so on.

    Is the heart of automotive lighting lamps, automotive lamps light the evolution of the change with the car occurred largely through the following four stages:

    First-generation car by the fuel source (candles, kerosene or acetylene) Direct burning LED, it can meet the requirements of early stage lights, but there is a very low luminous efficiency, light, strong or weak, the performance of unstable and complicated to operate, such as obvious shortcomings.

    Second-generation car is the incandescent light sources. Edison invented incandescent lamp in 1879, the United States in 1913 incandescent technology first used in the Cadillac vehicle headlamps, auto lamp revolutionary changes have taken place, from the car into the electrical lighting times. Then, one after another vehicle mirror there, start machines, generators and batteries and other new technologies, began in 1925 entered the car a real era of incandescent automotive lamps. The 20th century appeared Halogen 50s, it quickly became the main vehicle strong light bulbs.

    Third-generation car is a gas discharge lamp lighting (HID). It has a high luminous efficiency, high brightness and high reliability, etc., will replace incandescent, halogen headlamps become the new light vehicle.

    Fourth-generation car is a semiconductor light-emitting diode light source (LED). LED is a semiconductor PN junction diode, a forward bias when imposed on the PN junction at both ends, so that excitation PN junction system, carrier-state transition from low energy to high-energy state, when in a state of unstable high-energy carrier to complex when the low-energy state, in accordance with the principle of conservation of energy, excess photon energy will be released form, it is the principle of LED electroluminescence. It is not through thermal heating and light-emitting object can, by direct conversion of light energy, so called cold light. Emission wavelength depends on the energy carrier that is poor and low-energy high-energy state of the poor state.

    The emergence of LED light source lighting the outbreak of another revolution, the epoch-making significance, it has and will further affect the changes in automotive lamps.

    As a result of the development of semiconductor technology, especially microelectronics and semiconductor light emitting technologies are maturing to the third generation to enter the automotive lamps (HID) and fourth-generation (LED) light source period. At the same time, there has been from the sensors, processors, institutions and implementation of adaptive headlamp control systems (AFS). HID, LED lamps and AFS, and the new car market lighting control system for electronic components and the formation of huge business opportunities.

    HID lights to speed up as a standard

    Highway network around the world with the rapid extension of vehicle speed, in order to automotive safety, the lighting of the lamp light source brightness and service life, higher demands.

    With the level of automotive electronics continues to improve, the increase in car consumption, in particular the use of energy-saving light source is to reduce power consumption Headlamp has become imperative. With the increasingly competitive car, need a smaller size, greater brightness to meet the more modern headlamps, comfort, luxury and environmental protection continue to launch new cars. Miniaturization of the HID light source as the preferred vehicle R & D projects.

    Philips in 1984 will be the first to put forward the miniaturization of the HID (HighIntensityDischarge) the idea of headlamps for motor vehicles; in 1988 by seven companies in Europe to implement a joint R & D projects EURECA273 to accelerate the practical use of the HID; BMW car in 1991 First of all, loaded with HID headlamps. Since then, HID headlamps are gradually replaced by ordinary halogen headlamps. So far, Mercedes-Benz, BMW, Ford, General Motors, Toyota, Volkswagen, Chery, Roewe, such as number of cars equipped with HID headlamps. With HID technology improved, the decline in product prices, will further accelerate into HID headlamp, high-grade standard sedan.

    HID xenon light bulbs by and composed of high-voltage rectifiers, high voltage rectifier which there are nearly 160 devices composed of electronic components. HID-made rectifier devices use 80 percent of electronic components imported components, and accounted for 85% of the total cost of this device to the electronic components industry in China provides opportunities and challenges.