The story of the cat and the laser pointer wall

The focal length adjustment device of the green laser pointer and the mobile terminal with the adjustment device are suitable for the mobile terminal with the laser pointer. The device includes: a drive motor, a lens moving mechanism, and a lens device arranged on the mobile terminal; the drive The motor is connected to the lens moving mechanism and drives the lens moving mechanism to work; the lens moving mechanism is fixedly connected to the lens device, and is used to drive the lens device to move away from or in the laser beam emission direction of the laser pointer. Move closer to adjust the spot size of the laser beam. The present invention provides a device for adjusting the focal length of the laser pointer of a mobile phone on a mobile communication terminal. When the laser pointer is working, the user activates the software on the mobile phone by pressing a button, drives the focusing device to work, and then adjusts the position of the lens device, namely Adjust the focal length of the laser beam, and finally realize the adjustment of the size of the laser beam spot.