The future of the mainstream lighting LED lights better and longer life

Since the Audi family first install LED car headlights R8 exposure, the international high-end cars such as new cars, TOYOTA, Cadillac, BMW, Mercedes Benz and Ford have launched LED lamp with a riot of colours to attract the customer. Many successful examples can be seen, LED lights come to the fore, ready to become the mainstream of the next era of lighting.

Audi R8 headlights

Automotive lamps from the most primitive candle lights, the development of the general use of incandescent lamps, in recent years, the emergence of new HID lights and LED lights. LED is the English (Light Emitting Diode), is a kind of electric energy can be converted into visible light semiconductor, luminous efficiency of up to 90%. New, intelligent LED lighting is one of the most dazzling products in the automotive electronics, now known as the fourth generation of automotive light source.

No need to replace the bulb

Compared with the traditional light bulb, LED is the most important thing is that its service life. First of all, the life of the LED lamp can reach up to 50 thousand hours in theory, and the actual life can reach up to 20 thousand hours. Secondly, no delay, faster response time. The start-up time of the LED is only a few tens of nanoseconds, and the starting time is much shorter than that of the incandescent lamp. This gives the driver more time to respond. Third, very energy-saving. LED brake lights and direction lights can lower the driving current directly to the electrical energy into light energy, environmental protection and energy saving effect is good, the typical drive current of only 1/4 of incandescent lamp; fourth, high quality light, basically no radiation, which belongs to the "green light". Fifth, small size, simple structure. LED small footprint, the designer can change the lighting mode, so that the diversification of car styling. Its structure is simple, the internal stent structure, surrounded by a transparent epoxy resin seal, good seismic performance.

Increasingly rich applications

In recent years, with the resolution of some vehicle LED brightness problems and the decline of the cost, its application has increased. Domestic common Honda accord, Teana, crown, Reiz, Cadillac series, Buick Royaum have already adopted the LED taillights. When the United States and the United States to the 2 generation of the listing, LED steering / reversing lights have become a great highlight of the car.

Automotive LED lamps can be divided into two categories according to the application of light and decorative lights. With the light meter indication lamp is suitable for backlight display, before and after the turn lights, brake lights, down lights, fog lights, reading lights and other functions; decorative lamp is mainly used for automobile light color transform, from inside and outside the car beautification effect. In addition, the use of white LED for car lights has just started, it can gradually increase the brightness, so the application of white LED in the automotive headlamp is optimistic.

Market prospects

Although LED as a new type of light source to replace the traditional incandescent light source is technically mature, but the cost is high. The LED lamp Market in China is in the initial stage, but it is developing well. LED high brake lamp further spread, prices fall steadily, LED brake lights, turn lights and fog to start the commercialization, LED auto lamps to the development of personal and artistic direction, while the LED intelligent control system is developing very fast. At present, the main research direction of LED automotive lamps is the white LED headlamps, and the combination of LED lights and AFS (adaptive control system). It is estimated that around 2008, there may be LED headlamps commercialization of products.

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Who is producing LED lights?

The world's major automobile manufacturers have lamps Germany Japan Koito, Hella, Valeo, Italy AL. While the global major automotive LED manufacturers for the American Lumileds Lighting company, Germany's OSRAM, the two companies in the global market share of about 55%; including Nichia Corporation, Japan LED products of good quality, but the price is high, the main competitive advantage in the blue and white market, no technology advantage in the red and yellow light, Japan the company accounts for the global car market share of LED 10%; China Taiwan LED enterprises are doing packaging mainly for low-end product application market, accounted for the global car market share of LED and close to japan.

Source: China Automotive Network