LED lights are ready to become the mainstream of next-generation lighting

Since the Audi R8, the first model of the Audi family to install LED headlights, international high-end cars such as Cadillac, BMW, Toyota, Mercedes-Benz and Ford have launched new-style cars with colorful LED lamps to attract customers. Many successful examples show that LED lights are emerging and ready to become the mainstream of lighting in the next era.
Automotive lamps have evolved from the most primitive candle lamps to the commonly used incandescent lamps. In recent years, new HID lamps and LED lamps have appeared. LED is an abbreviation of LightEmittingDiode, a semiconductor that converts electrical energy into visible light with an efficiency of 80% to 90%. The new and intelligent LED luminaire is one of the most dazzling products in the world of automotive electronics, and is now called the fourth generation of automotive light source.

No need to replace the bulb

Compared with traditional light bulbs, the most worth mentioning of LEDs is its service life. First of all, the life of LED lights can theoretically reach 50,000 hours, and the actual life can reach 20,000 hours. Generally, there is no need to replace them during the life of the vehicle. Second, there is no delay in lighting and the response time is faster. The startup time of the LED is only a few tens of nanoseconds, and the startup time is much shorter than that of the incandescent bulb. This leaves the driver with more reaction time. Third, it is very energy efficient. LED brake lights and directional lights can directly convert electrical energy into light energy at a lower driving current. The environmental protection and energy saving effect is good. The typical driving current only needs 1/4 of incandescent lamps. Fourth, the light quality is high and basically no radiation. , belongs to the green light source. Fifth, the volume is small and the structure is simple. The LEDs occupy a small volume, and the designer can change the lamp mode at will, so that the car shape is diversified. Its structure is also simple, the internal support structure, surrounded by transparent epoxy resin, good seismic performance.

Increasingly rich applications

In recent years, with the resolution of some automotive LED brightness problems and the cost reduction, its application has increased. The domestic Honda Accord, Nissan Teana, Crown, Reiz, Cadillac series, Buick Rong Yu have all adopted LED taillights. When the 2nd generation of Familia came on the market, the LED steering/reverse lights also became a great highlight of the car.

According to the application, automotive LED lights can be divided into two types: light distribution lamps and decorative lamps. The light distribution lamp is suitable for the functional aspects such as the backlight display of the indicator light, the front and rear turn lights, the brake indicator light, the reverse light, the fog light, the reading light, etc. The decorative light is mainly used for the color conversion of the automobile light, and the beautification effect inside and outside the vehicle. In addition, white LEDs have only just begun to be used in automotive lights, and their brightness can be gradually increased, so the application prospect of white LEDs in automotive headlamps is optimistic.

Promising market prospects

Although LED has matured as a new type of light source instead of the traditional incandescent light source, the cost is high. China's LED lamp market is in its infancy, but it is developing well. LED high-position brake lights are further popularized, prices are steadily declining, LED rear brake lights, turn signals and fog lights are beginning to be commercialized. LED automotive lamps are developing in a personalized and artistic manner, and LED intelligent control systems are developing rapidly. At present, the key research direction of LED automotive lamps is white LED headlights, and LED lights combined with AFS (adaptive lamp control system). It is expected that around 2008, there will be products commercialized with LED headlamps.

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Who is producing LED lights?

At present, the world's major automotive lighting manufacturers are German Hella, Japanese Otaru, French Valeo, Italian AL. The world's leading automotive LED manufacturers are LumiledsLighting of the United States and Osram of Germany. The two companies have a global market share of about 55%; Japanese LED products, including Nichia Chemical Co., are of good quality but high in price, mainly in Blu-ray and The white light market has a competitive advantage. There is no technical advantage in red light and yellow light. Japanese companies account for 10% of the global market share of automotive LEDs. Taiwan's LED companies mainly focus on packaging, and the products are oriented to the low-end application market. The global market share of automotive LEDs is close to that of Japan.
Snow Wright's equity dispute and the original executives to increase the promotion of the book's Burton lighting. Into the Central China Tobonne electric lighting products officially listed in November Philips Lighting: for the building environmental protection and energy-saving lighting first thinking next year, the Korean market push LED chip lighting Beijing image store officially opened (Figure)


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