At present, China has the ability to purchase cars for 20 million households, China may become the world's third largest auto market, accounting for 6% of the global share, second only to the United States and Japan. By 2025, the size of China's auto market will reach the current size of the US auto market. In 2002, China's automobile production and sales volume of 325 million, 2003 sales reached 4.3 million, 2004 sales reached 5.15 million, China has become the world's fastest growing auto sales in the region.
In the next ten years, the automotive market competition, on its essence, is the electronic competition of cars. It is predicted that the price of automotive electronics products will account for more than 45% of the cost of the vehicle. The new, intelligent LED lighting is the international automotive electronics in one of the most dazzling products. Experts predict: in the next 5 years, China's LED lights will be rapid development in recent years will form an annual output of 1 billion yuan output value, 5 years will form an annual output value of 30 billion yuan.
From the LED lamp technology development status and trends in terms of China's LED high brake light will be further popular, the price dropped steadily, LED rear brake lights, turn lights and fog lights began commercialization, LED car lighting to the personalized and artistic Direction, while LED intelligent control system will also be rapid development. The following are the same as the "
History of car lights
The evolution of automotive lighting with the car light source changes occur, generally through the following four stages:
The first generation of automotive light source is fueled by fuel (candles, kerosene or acetylene) direct combustion, it can meet the requirements of early lights, but there is a very low luminous efficiency, light intensity, unstable performance, complex operation and other obvious shortcomings.
The second generation car light source is incandescent. In 1879 Edison invented the incandescent lamp, in 1913 the United States first incandescent lamp technology used in the Cadillac car headlamps, car lighting has undergone a revolutionary change, since the car lighting into the electrical age. Then, there have been car mirrors, starters, generators and batteries and other new technologies, 1925 began the car really into the incandescent car lighting era. The 1950s and the emergence of halogen lamps, it quickly became the main light bulb car light bulbs.
The third generation of automotive light is the gas discharge lamp (HID). It has the advantages of high luminous efficiency, high brightness and high reliability, will replace incandescent, halogen lamp as a new type of automotive headlamp light source.
The fourth generation of automotive light is a semiconductor light emitting diode (LED). LED is a semiconductor PN junction diode, when a forward bias is applied to both ends of the PN junction, the PN junction system is excited, the carrier transition from the low energy state to the high energy state, when the high energy state of the unstable carrier back To the low energy state compound, according to the principle of energy conservation, the excess energy will be released in the form of photons, it is the principle of LED electroluminescence.
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