There is also a headlight for the car. Now the LED headlights can only be used for 300 meters, but the laser can take one kilometer. Laser headlights, first of all, the headlights will be very small, not as big as they are now. With a smaller laser pointer headlight like a projector, if you use LEDs for headlights, the LED chips are so large, and based on the current low energy density, it is even bigger. If we use laser illumination, it is smaller in size, and we can see that this laser has various benefits as a car headlight. So today's car designers are looking for the smallest car headlights.
We can also use this laser pointer welding, laser cutting and laser radar, here we see the infrared light and so on. We see the size of the beam. If the laser beam is too large, it is inconvenient to use, the CD is the biggest, the DVD is slightly smaller, and the blue light is currently It is the smallest, 400 nanometers, so its beam is smaller. So the blue LED has a smaller beam and has its advantages over DVD and CD. This is especially suitable for laser welding and laser cutting, so its beam is very small and accurate when you cut it. It is very accurate compared to other light sources and is suitable for today's cutting and welding work. And because this blue light uses a laser, its energy density is also high. This is a concrete example. Laser cutting and welding are currently using infrared rays, and blue light cutting will be used in the future.
This is the film "Star Wars", it has already gone ahead, predicting the emergence of laser pointer weapons, laser has a very high energy density, it is more powerful in terms of aiming and firepower. Also using Lidar, Lidar is mainly needed for autonomous driving technology. There will be this lidar on the roof, then it will scan to go to the range to form an image, use this radar to scan, but now they use the infrared method, if In the future, we will use Blu-ray to make this radar smaller. We can improve the sharpness of lidar imaging. The current imaging rate is very low. Just like the old TV, if we use the blue radar in the future, its imaging rate will be very high and very clear, reducing the number of accidents caused by the accident, because by improving imaging The clarity can reduce traffic accidents.
For example, Apple X, which has a face recognition function, uses infrared recognition technology, but its imaging rate is very low and unclear. But if we use Blu-ray diodes, our face recognition will be more accurate in the future, it can identify everyone's face, very accurate face recognition. We use Blu-ray radar diodes to replace all infrared diodes. This is also a very big opportunity, the light fidelity opportunity, also known as visible light wireless communication. Very fast, very suitable for communication. At present, our communication is mainly WiFi, WiFi uses the radio channel, and our Blu-ray laser pointer has a higher frequency, that is, the bandwidth can be very wide, has many advantages, and will not be affected by noise, the future The application prospects are very optimistic. For example, data transmission, WiFi people currently use 3G or 4G network, 4G data transmission is relatively slow, only 0.3GB per second, this is 4G. But now people are developing the next generation of WiFi, called 5G, 5G is only 10GB per second. But when it comes to laser transmission, when it comes to light-fidelity technology, when it can reach 100G per second, then LiFi will bring great breakthroughs in future radio communication technology, and the transmission speed will be greatly improved, so LOD has already Come to us. 5G is not ready today, 4G is not fast enough, but now LIFI has come to our door, and LiFi is a very simple technology, this laser pointer fidelity technology is very simple, because we can install LED lighting equipment everywhere LED lighting is everywhere, which can promote LiFi as a convenient factor for visible light wireless communication equipment. Later, smartphone companies and so on will pay close attention to the development of this technology. Of course, this is my own statement. I will say this, thank you all!