As a fourth-generation automobile light source, LED (Light Emitting Diode) lamps have been widely used for producing many beautiful car style by car manufacturers. LED light has many advantages including no delay, energy saving, long life, low heat, seismic resistance and high color purity and it has taken place of tungsten filament lamps and halogen lamps in many fields. Although its cost is very high,
LED lamp has incomparable advantages of good quality and high grade when comparing with incandescent lamp. Because of the monochromaticity of LED light, it can directly select LED components of different wavelengths to design cornering lights, brake lights, backing lights,
bicycle taillight and other lights. It can also make light transmittance increase without color filters and improve the utilization rate of the light.
However，there is no independent product inspection standard of LED car lamps. For the moment, general requirements of traditional tungsten filament lamps and halogen lamps are regarded as the production standard of LED lamps. In addition, in order to meet the requirement of the light distribution standard, the angle selection of the LED lamp is very important. The right angle means that we can use the correct number of LED components to achieve economic and practical purposes. Because of less lateral astigmatism of LED, the effect of reflector cup effect is not obvious. So array distribution of the LED light source needs to be dispersed, which can better meet the visual habit.
