Lens-type headlights and lamp-bowl headlights are two common car headlight designs. They use different light-emitting principles to achieve lighting effects. Below I will introduce the lighting principles of these two headlights in detail.
1. Lens headlight lighting principle:
Lens-type headlights use optical lenses to focus and scatter light. This design usually includes a convex lens and a light source such as an LED or xenon lamp. The following are the detailed steps of the lighting principle of lens headlights:
1.1 Light source emission: As the starting point of luminescence, the light source emits light, which can be a point light source or a linear light source. Common light source types include xenon lamps and LED lamps.
1.2 The role of convex lens: When light passes through a convex lens, the shape and curvature of the convex lens refracts the light. Specifically, when light enters an optically dense medium (such as lens glass) from an optically sparse medium (such as the atmosphere), it will be deflected in the normal direction. This refraction phenomenon is called the refraction of the lens.
1.3 Light focusing: The design of the lens allows the light to converge to a point, thereby achieving a focusing effect. The shape and curvature of the lens are designed as needed to achieve the best light focusing effect. By focusing, the lens can direct light more concentratedly to a specific area, such as the road in front of the vehicle.
1.4 Light Scattering: In addition to focusing light, lenses can also scatter light. The surface of the lens may have tiny textures or concave-convex structures, which can change the direction of light propagation to a certain extent, allowing the light to scatter out more evenly and provide a wider lighting effect.
To sum up, lens-type headlights achieve lighting effects through the refraction, focusing and scattering effects of optical lenses. Light starts from the light source and is focused and scattered after passing through the lens, thereby providing a more concentrated and brighter lighting effect.
2. Lighting principle of bowl-type headlights:
Bowl-type headlights use a reflective bowl and light source to reflect and scatter light. This design usually includes a reflective bowl (or reflector) and light source. The following are the detailed steps of the light-emitting principle of the bowl-type headlight:
2.1 Light source emission: The light source emits light, which can be a point light source or a linear light source, such as a xenon lamp or an LED lamp.
2.2 The role of the reflective bowl: The reflective bowl (or reflector) is a bowl-shaped structure coated with reflective material inside, usually in a mirror shape. It achieves lighting effects by reflecting light.
2.3 Light reflection: The emitted light is reflected by the reflective bowl and changes the direction of propagation. The special design of the reflective bowl's curvature and surface coating controls how light is reflected and scattered to achieve the desired beam distribution. The light source is located at the focal point of the reflective bowl, allowing the reflected light to be emitted at the desired angle.
2.4 Light scattering: The internal surface of the reflective bowl may have tiny textures or concave-convex structures, which can scatter light to a certain extent, allowing the light to be distributed more evenly and provide a wider lighting effect.
To sum up, the bowl-type headlight reflects and scatters the emitted light through the interaction between the reflective bowl and the light source, thereby achieving the lighting effect. After the light is reflected and scattered, it can illuminate the area around the vehicle in the desired way, providing a more diffuse and wider lighting effect.
Summary: Lens-type headlights and lamp-bowl headlights are two common car headlight designs. They achieve lighting effects through the refraction, focusing and scattering of the lens, and the reflection and scattering of the reflective bowl respectively. Lens-type headlights provide a more concentrated, brighter lighting effect, while bowl-type headlights provide a more diffuse, broader lighting effect. Both designs are widely used in the automotive industry and are selected and optimized based on the needs of vehicle manufacturers.
Judging from the two light-emitting principles of the headlights above, the easiest way to make your own car lights brighter is to buy a high-power and brighter light bulb and replace it like you do at home. But the circuit system of the car's headlights There is a design requirement for maximum power consumption. Generally, headlights are 55W. To increase the brightness, the only way is to completely modify them. The cost is more than 3K. It is not acceptable to ordinary car owners. After all, modifications will damage the original car headlights and wiring. Yes, now the sixth-generation LED headlights newly developed by Biguang can achieve the same power of 55W as the original car halogen lamps. Through the empowerment of technology, the original car lights can be improved by more than 7 times. They can also be replaced without loss and no modification is required, just like at home. It's as easy as changing a light bulb.
Old models with yellow lights before 2019 can basically be upgraded to the effect that previously required more than 3K of modified lights for a meal.
