The principle of laser engraving is that the laser beam is transmitted and focused on the surface of the material by the optical mechanism, and the material at the action point of the high-energy density laser beam is rapidly vaporized to form pits. Use the computer to control the x-y console to drive the laser head to move and control the laser switch as required. The image information processed by the software has been stored in the computer in a certain way. When the information is read from the computer in sequence, the laser head will move along the The scanning track is scanned back and forth line by line from left to right and top to bottom. Whenever a “1″ point is scanned, the laser is turned on, and when a “0″ point is scanned, the laser is turned off. The computer stores information in binary, which coincides with the two states of the laser switch.