Device for adjusting angle of HUD lens

The utility model specifically discloses a device for adjusting the angle of an HUD lens, which comprises a lens, a driving mechanism, a permanent magnet, a first linear Hall sensor, a second linear Hall sensor and a controller, the driving mechanism is provided with a driving motor, the permanent magnet is arranged on the lens, and the permanent magnet moves along with the lens; the first linear Hall sensor is used for sensing the permanent magnet to obtain a first magnetic field intensity; the second linear Hall sensor is used for sensing the permanent magnet to obtain a second magnetic field intensity; the controller is used for controlling the driving motor to rotate and calculating the motion angle of the lens according to the first magnetic field intensity and the second magnetic field intensity acquired by the first linear Hall sensor and the second linear Hall sensor, and when the motion angle is equal to a preset angle value, the controller controls the driving motor to stop acting. The first linear