Break through the traditional drawbacks, a new type of light with variable LED headlamps

The day before, the Japanese city of light industrial company in the 2008 International Electronic Products Expo (ATInternational2008), on the latest development of the white LED model with variable light automobile headlamp (AFS).

The traditional LED lamp is used in single chip LED two luminescence tube structure, and the total luminous flux is relatively low, lumens cannot reach before the car requires the use of light, and the durability is not strong, relatively short life, often need to change, can not meet the use on the car.

However, with the continuous development and improvement of electronic technology, Audi Automobile Co., Ltd. took the lead in the use of auxiliary headlights on the LED lights.

City Light Industry Research and development of new headlamps, also broke through the traditional LED lamp technical shortcomings, while increasing the updated technology and function. The new headlight unilateral lamp consists of two fixed component and a rotating component, in the fixed and rotatable components are equipped with a group of white LED lamps, these components equipped with white LED using 4 LED chips. In the aspect of the component, the fixed component is the projector type, and the rotating component can rotate by the progressive motor. Among them, the rotating components using relatively different new structure, the white LED light from the two light reflection, the final exposure to the front of the vehicle.

The advantage of this new white LED variable headlamp is that it can change the light distribution mode according to the different conditions of the vehicle straight, turning, driving, driving, etc.. For example, the installation of this white LED variable type headlamp irradiation control vehicle, in turn driving by changing the angle of light distribution curve ahead, while driving on the highway when the optical axis rotating assembly can also be adjusted upward slightly, and increase the output power of the LED lamp, in order to improve the visibility of the vehicle in the distance the. In addition, the vehicle in city driving, can be rotated around respective lateral steering components, on the side of the irradiation, irradiation or in heavy rain on both sides of the road, in order to improve the visibility of the fence and the roadside obstacles.

The LED before the total luminous flux of HID xenon lamp light can reach the same level of lumen reached 12 thousand LM, and the LED lamp luminous efficiency reached 100lm/W, power 35W~40W, power saving and durability are much better than the current HID xenon lamp is widely used in the car. At present, the city of light industry has been on the LED headlamp technology and a number of Japanese car companies to cooperate, I believe will soon appear in the production of models.

Source: automotive electronics design