The functions of car light prisms are as follows:

• Concentrated light: Car light prisms can focus light on specific areas, such as the road ahead and pedestrians, to provide stronger lighting effects. By adjusting the shape and material of the prism, the degree and range of light focus can be changed to adapt to different driving conditions and needs.

• Uniform distribution: Car light prisms can ensure that light is evenly distributed within the target area, avoiding blind spots or overly concentrated areas of strong light. This can reduce shadows and dead spots in the lighting area and improve the clarity and breadth of the field of view.

• Direction indication: Some car light prisms also have special designs, such as concave and convex surfaces or stripes, to achieve the direction indication function. In this way, indicators on vehicles, such as turn signals, can convey directional information to other vehicles and pedestrians by reflecting and refracting light.