Basic Structure and Components
The core components of an LED bi-xenon headlight include an LED light source, a lens, a light shield, and a reflector. The LED light source emits light, the lens focuses and shapes the light, and the light shield is the key actuator, controlling the light pattern switching by moving up and down.
Low Beam Working Principle
When the low beam is turned on, the light shield rises to a specific position, blocking part of the light emitted by the LED light source. The blocked light cannot escape directly, while the unblocked light passes through the lens to form a light pattern with a clear cutoff line. This design ensures that the road in front of the vehicle is adequately illuminated, while the light does not shine directly into the eyes of oncoming drivers, ensuring the safety of both drivers.
High Beam Working Principle
When high beam illumination is needed, the light shield quickly descends, opening the light path. At this time, all the light emitted by the LED can pass through the lens, and the previously blocked light is also released. When all the light rays converge, they form a high beam spot with a wider range and farther reach, helping drivers see road conditions in the distance.
