Active type light-shielding and eye-protection glasses structure and control method

The invention discloses an active type light-shielding and eye-protection glasses structure. The structure comprises a glasses framework and liquid crystal glass lenses, wherein the light transmittance of the liquid crystal glass lenses is adjustable; a glasses main control part is arranged at the middle position of the glasses framework; a light sensor receiving window is used for detecting the light intensity changes of the liquid crystal glass lenses; a control key is used for inputting information; a microcontroller is used for changing the duty ratio of an output signal according to the light intensity changes and an adjustment control amount is further output through a liquid crystal glass brightness adjusting circuit; the microcontroller is used for detecting whether current light intensity is harmful to human eyes; when the microcontroller detects that the light intensity is harmful to the human eyes, the microcontroller controls the liquid crystal glass brightness adjusting circuit to output a certai