What are the symbols for car headlights and low beams?
1 Answers
Car headlights include high beams and low beams. The symbol for high beams is parallel horizontal lines, while the symbol for low beams is a downward-slanting line. Both high beams and low beams are used to illuminate the road ahead of the vehicle. The differences between low beams and high beams are: 1. Light intensity varies: Low beams are positioned outside the focal point, emitting divergent light that covers a larger area at close range; high beams are positioned at the focal point, emitting parallel light with higher brightness, capable of illuminating distant and high objects. 2. Illumination distance differs: Low beams are designed for short-distance lighting with a fixed focus, while high beams are intended for long-distance lighting with greater brightness and range. 3. Usage scenarios differ: Low beams are used when driving on urban roads, where lighting conditions are generally adequate, as using high beams can easily dazzle oncoming vehicles and cause accidents; high beams can be used on highways or in rural areas without streetlights to expand the field of vision. While driving, you should immediately switch from high beams to low beams under the following circumstances: 1. When an oncoming vehicle approaches; 2. When the distance to the vehicle ahead in the same direction is relatively close; 3. When the road is already sufficiently illuminated; 4. When entering busy streets with heavy traffic.
