Huawei has been exploring liquid lens a long time ago. Huawei applied for the relevant invention patent on December 25, 2019, and announced it in April this year. It is reported that if the liquid lens is mass-produced and commercialized next year, Huawei’s P50 series may be launched. Liquid lens has outstanding advantages, fast focusing speed, can realize millisecond focusing like human eyes, and the film forming rate is almost 100%. < / P > < p > liquid lens may be unfamiliar to us. In fact, the ideal curve of the mirror is a parabola, and the focal length of parabola with different curvature is different. The traditional zoom lens is realized by adjusting the distance between two lenses with fixed focal length. Liquid lens can be divided into several types. The dielectric liquid lens is used in mobile phones. The liquid is used to focus light and change the shape of the liquid through different voltages to control the imaging. < p > < p > this technical solution of Huawei can be used to drive the motor of liquid lens, meet the performance requirements of auto focusing and optical anti shake, and improve the reliability of the motor under abnormal working conditions such as impact and drop. American companies begin to give up R & D: who should pay for corporate research?