What is the principle of combined high and low beam?
1 Answers
The principle of combined high and low beam is: one set of light beams emitted by the light source is reflected by the lamp reflector and projected straight ahead, commonly known as high beam; the other set is a deflected beam, where the emitted light is blocked by a shade to the upper part of the lamp reflector, and the reflected light is diffused downward towards the ground, preventing glare for oncoming drivers, commonly known as low beam. The illumination effect of headlights mainly depends on two factors: luminosity and angle. 1. Luminosity: During driving, the vehicle may experience bumps and vibrations, which can cause the lamps to loosen or misalign. This is the most common reason for reduced illumination effectiveness. 2. Angle: The angle of the headlights can be adjusted. Most adjustments are made inside the front compartment, behind the headlights, using positioning screws. Some adjustments can be made externally or via electric adjustment inside the vehicle. Without the aid of light measurement instruments, you can park the vehicle on a straight road, start the engine (ensuring the alternator is generating enough power to maintain normal headlight operation), and after each minor angle adjustment, switch between low and high beams until the optimal setting is achieved.
