Analysis on the development status of LED vehicle lighting market

LED R & D vendors for automotive applications are highly motivated, and LED is indeed a unique attraction to the car market.
LED light source in the car has many advantages, such as: first, energy saving, low cost. In the car, the same daytime running lights, LED components of energy consumption is only halogen lights 1/20. Followed by long life, currently used in the car on the LED components are basically able to reach the level of 50000 hours, while the well-known automotive lighting supplier has been able to provide a lifetime of up to 100000 hours of LED components. In contrast, the xenon lamp life is only 3000 hours. And LED makes the shape and lines of the headlight become more abundant, the recognition of the night is also higher. Three durability is good, LED component structure is simple, impact resistance, shock resistance is very good, can well adapt to a variety of environment. Four is a small size of the LED components, ease of layout and design - this is a huge advantage of LED, to fully meet the needs of the design of the automobile manufacturers in the design. Fifth, fast response speed, led lit only microsecond level, the tail lights and steering lamp to rapid light to better warning effect, used in the headlights on, compared with xenon and halogen headlamps have higher response speed, better for traffic safety guarantee for. Six is the brightness attenuation is low, LED brightness is high, the brightness of the light attenuation is far less than halogen lamp, suitable for use as lighting and brake lights, turn lights and other warning lights. Seven is a low voltage DC power can be driven, the load is small, weak interference, the use of environmental requirements low, unlike the xenon lamp needs boosting device (high voltage).
These factors on energy saving and traffic safety is obviously a big help.
In order to make driving safer, the EU was prior to September 2008 announced that requirements since the beginning of February 2011, all the cars, small trucks, cars must be equipped with daytime running lights; while the other trucks, buses is since August 7, 2012 shall be equipped with daytime running lights. In addition to the European Union, other countries and regions have also started to regulate all of the car's new car installed daylight lamp. In addition, including the European Union, the United Kingdom, Japan, New Zealand, Australia, Taiwan, Canada, the United States, Argentina, has officially announced that the latest in 2014 will be fully disabled with the ban on production of incandescent lamps.
The application of LED in the car was originally from the dashboard light. Such as Mercedes Benz and Audi use white, BMW use orange, Saab used green LED as the indicator instrument panel and a control unit. With the decline in the price of LED products, LED applications in the car extends to the reading lamp and feet lights, like Toyota, Audi use white LED as a reading lamp models.
In the vehicle signal lamp, the use of LED has been around for about 20 years. Before 2000, the car factory LED light source as the rear end light source, 2000, Cadillac LED for car taillights first.
At the beginning of the use of LED cars are mostly high priced cars, and now, LED lights in the direction toward the civilian population of the spread. For car headlight more demanding, is also expected to gradually decreased as LED increased brightness, price and market.
Vehicle LED light source, especially special. Car taillights, the third brake lamp, steering lamp, sidelights, dipped headlight and in light etc., these car lighting applications require high lumen, and number of lumens depending on the efficiency of optical equipment. The lighting optical system more economical, display lumens required application value is low. Usually the third brake light requirements for 25 ~ 60 lumens, steering lamp for 50 ~ 120 lumens, in accordance with the standards of Europe and other regions will vary. In addition, the dipped beam headlight and light with high brightness, the statute requires front lamp lumens for 1500 lumens, the data are based on the optical and thermal system value changes. The uniformity of the light source is very strict, but the physical characteristics of the light source is limited by the physical characteristics of LED, and still need to be further developed to find a breakthrough in the further development of technology.
Intelligent application is also a potential advantage of LED. PHILPS has revealed that the future of LED lighting is not to bring a higher light efficiency, but better light. Nichia Chemical Industry Co., Ltd. Ohguro Hiroki to Nichia latest according to the external environment automatically adjust the brightness of the LED lamp automatically adjustable optical system as an example. It is pointed out that "in addition to the high luminous efficiency, light quality, size is light and thin, intelligent control system, and will is the focus of future development of LED lighting". A few days ago, TI (TI) on the launch of a simplified wireless connection LED lighting product development and control of the Light Link ZigBee development kit. The latest suite supports a simple cloud gateway connection, more easily through the ZigBee network to connect LED bulbs and other lighting products to the Internet of things. In the car, intelligent lighting is a popular trend in the future, such as the need to adjust the brightness of the lights, the car lights with the outside world and automatically adjust the light and so on.
However, the shortcomings of LED lights are also obvious. First, the cost of LED is higher than that of ordinary lamps. Two is the popularity of car headlights difficult, poor heat. For example, even if less heat to focus to chip the size of the device up conduction and divergence, because the device of the heat capacity of small will cause a sudden jump in the LED temperature, heat treatment is not good and easy to decay, lamp life. Both need to look forward to the progress of technology to further solve the above. Three is the lack of industry standards, product quality is uneven, the same product with different LED production price difference is great. Among these, the high cost is not the main problem, the reliability of the product and the quality of the lot is more important. Reminder: network building materials building materials more information please continue to pay attention to the lighting industry trends analysis