This product uses laser pulse time of flight (TOF)measurement to obtain three-dimensional distance information of the target;The sensitivity reaches the limit of single photon detection, the time resolution reaches the nanosecond level,and the detector completes digital quantization of laser pulse flight time within pixels.The signal processing process is simple, and the noise impact is minimal;At the same time,using a single laser pulse can form a complete three-dimensional image of a target in real time,which has the characteristics of low required laser power,no need for scanning structure,and no image distortion;The system has a simple structure,small size,light weight,and low power consumption.