Automotive light source solutions

       Automotive light sources can be roughly divided into three categories: lighting, signal lights and decorative lights. At present, there are three main light sources for automobile headlights: halogen lamps, xenon headlights and LED headlights. Halogen lamps have the characteristics of low cost and high energy consumption; xenon headlights have the advantages of high brightness and long life; and LED headlights have the advantages of high brightness, energy saving and environmental protection, long life and easy control. With the development of automobile intelligence, automobile lights have also developed from traditional lighting functions to intelligent functions of human-vehicle interaction and vehicle-vehicle interaction. Headlights and taillights have the highest functionality and value among vehicle lighting systems. Therefore, the key research direction of Gasgoo Automotive Research Institute is headlights and taillights.

       There are three types of automotive lighting sources on the market: halogen headlights, xenon headlights and LED headlights, each of which has different advantages and disadvantages. The advantages of halogen headlights are low cost, simple structure, easy later maintenance, and the best lighting effect in rainy and foggy days with poor visibility. However, halogen headlights generate a large amount of heat, have low efficiency, produce yellow light, and have a short lifespan. The advantage of xenon headlights is that xenon bulbs are three times more powerful than halogen lamps and consume only two-thirds of the energy of halogen lamps. At the same time, xenon bulbs have a light color similar to that of sunlight, which can provide a safer driving environment. However, the penetrating power of xenon headlights is not strong, and the effect is not good when used in rainy and foggy days; and there is a delay in turning on, taking 2-4 seconds.

       The advantages of our automotive lighting COB light sources are as follows:

       High integration: COB lamps use multiple LED chips directly pasted on a substrate, which has a higher integration level. This tightly packed structure provides higher brightness output and more even light distribution.

       Color consistency: Since multiple LED chips are on the same substrate, COB lights usually have better color consistency. This means COB lamps are able to provide more consistent color temperature and color performance.

Luminous efficiency: COB lamps generally have higher luminous efficiency and energy conversion efficiency than traditional LED lamps. COB technology can achieve better heat dissipation effect of LED chips and improve the working efficiency of LEDs.

       Light control: Due to the close arrangement of multiple LED chips, COB lamps can achieve more precise beam control and light uniformity through accessories such as lenses and reflectors.

       Reliability: COB lamps have a lower lamp bead count, which means there may be less risk of individual lamp bead failure during use.

       Cost advantage: COB technology eliminates the concept of brackets. There is no electroplating, no reflow soldering, and no patching process. Therefore, the process is reduced by nearly one-third and the cost is saved by one-third.

       Easy to match with secondary optics: COB light source can design the light output area and overall size of the light source according to the product appearance structure. Product features include cheapness, convenience, electrical stability, scientific and reasonable circuit design, optical design, and heat    dissipation design. The use of heat sink technology ensures that the LED has an industry-leading thermal lumen maintenance rate (95%) and facilitates secondary optical matching of the product. , improve lighting quality, high color rendering, uniform light emission, no spot, healthy and environmentally friendly, simple installation, easy to use, reduce the difficulty of lamp design, and save lamp processing and subsequent maintenance costs.

       Automotive lighting application scope

1. Headlights: Headlights are an important part of the automotive lighting system. They are mainly used to illuminate the road ahead and obstacles, ensuring that the driver can clearly see the road ahead and improving driving safety. Headlights generally include two types: high beam and low beam. The high beam has a long illumination distance and high brightness, and is suitable for driving at night or in bad weather conditions; the low beam has a short illumination distance and moderate brightness, and is suitable for daily driving. .

2. Fog lamp: Fog lamp is a special-purpose automotive lighting equipment, mainly used for driving in rainy, foggy and other bad weather conditions. Fog lights have high penetrating power and can penetrate rain and fog, providing drivers with better vision and ensuring driving safety.

3. Brake lights: Brake lights are an important part of the automotive lighting system. They are mainly used to remind the driver of the vehicle behind to pay attention to the deceleration or braking of the vehicle ahead to avoid rear-end collisions. The brake light is generally installed at the rear of the vehicle. When the driver steps on the brake pedal, the brake light will light up and send a warning signal.

4. Turn signal: The turn signal is an important part of the automobile lighting system. It is mainly used to indicate the vehicle's driving intention and direction to other vehicles or pedestrians. Turn signals are generally installed on the sides and rear of the vehicle. When the driver needs to turn or change lanes, he can operate the steering switch to light up the turn signals to alert other vehicles.

5. License plate light: The license plate light is an important part of the automotive lighting system. It is mainly used to illuminate the vehicle's license plate and number to facilitate the identification of other vehicles and pedestrians. The license plate light is usually installed at the rear of the vehicle and lights up together with the brake light to improve the vehicle's visibility.

6. Interior lighting: Interior lighting is an important part of the automotive lighting system. It is mainly used to illuminate the interior space of the vehicle and the driver's sight range. Interior lighting generally includes dashboard lighting, center console lighting, seat lighting, etc., to improve driver comfort and safety.