The technical difficulty required for the production of LED lights is relatively high, one is the choice of LEDs. Now the general LED brightness is difficult to reach a certain level, and the headlights strictly require the light shape and the illuminance of the corresponding points. For car headlights:
1. The optical design needs to be carried out according to the standard requirements for the light shape, including the LED brightness, beam distribution, beam angle, etc. to select the design. Although LEDs can save energy and are small in size, their beam angles are narrow, and they have high requirements for LED heat dissipation. Therefore, special attention should be paid to the treatment of uniform light when LEDs are used as car lights. The other is the heat dissipation treatment of the LED. If the heat dissipation is not done well, it will not only affect the life of the LED, but also cause the LED to have light attenuation in the light-emitting device. Based on these two limitations, LED lights have not been well received. Development, only some high-end cars are assembled.
2. LED quality control and light distribution verification during production. For car lights, the requirements for signal lights are relatively simple compared to headlights. However, it is mainly to solve the problem of uniform light of LED, that is, how to make the output light of LED evenly distributed, and to solve the problem of heat dissipation of LED.
After the LED lights are made, they need to go to the corresponding institutions for performance testing and 3C certification. Now the state requires the lights to pass the 3C certification.
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