Japan: City Light Industry Development of low power LED headlamps equipped with

City light industry developed a low power LED for car headlight. Nissan has been equipped with the lights in the electric car "LEAF" (Chinese Name: listen to wind) on all models. The number of LED is reduced to 2, the original HID (high brightness discharge lamp) 1/2 power consumption and 2 times the life, and by reducing the number of components to reduce costs.

The headlight of white light LED as the use of high frequency, shining down (the source). In addition to increase the output power of LED, but also by the reflection type combined use of the 2 gold reflector to control the light (reflector) structure, removing the previous LED convex lens headlight must improve the light utilization efficiency. The heat dissipation path from the chip to the heat sink is designed by using the precise thermal simulation.

This will ensure that the original implementation of the same brightness at least 3 LED reduction to a minimum of 2. In order to ensure the 550lm flux at the same time, can open the lamp after each side power consumption is only 23W of the world's first energy saving performance. Since the halogen lamp is 55W, HID is 45W, so the power consumption of LED lights were 40%, 1/2. Less power consumption, the more you can extend the life of the EV distance.

Service life of up to 5000 hours, is HID times of 2. Color temperature is 5500K, close to natural light, visibility is better. Unlike HID, it doesn't take time to turn on the lights. Weight ratio of 3 LED using the original headlamp light 30%. In addition, because it can be made thinner, so the degree of freedom to design higher. "LEAF" by improving the shape of the headlights, so that the rear view mirror will not hinder the oncoming wind, successfully reducing the wind noise and air resistance.

City Light Industry in Ise, the original manufacture of the new annual production capacity of 500 thousand of the LED headlamp unit dedicated production lines, and has begun mass production. The company will continue to promote the high beam light (upward irradiating headlight) development and the integration of LED light source unit, and only 1 of the LED, and to further promote the LED of automotive headlamp.