What is the laser automatic calibrator used for? Does anyone know?

To put it bluntly, it is still used for dimming, but this automatic calibrator for laser aiming security inspection equipment introduced by Tian Fei Optoelectronics adopts precise closed-loop control of motor and light intensity feedback to realize accurate and fast laser beam calibration. It solves the tedious work of manually adjusting the light of laser security inspection equipment. Reduce the time cost and labor cost. The work efficiency is improved, and the potential safety hazard of debugging personnel is greatly reduced. Better to use!