The invention discloses a
laser coating device and a method based on a transparent material, belonging to the field of micro-
machining. The device comprises a computer, a
laser which is connected with the computer, a
laser control system which is installed on the laser, a
workstation, a transparent material plate, a target and a flat plate, wherein the laser is connected with the computer, the
workstation is arranged below the laser
control system, and the transparent material, the target and the flat plate are arranged on the
workstation from top to bottom in sequence. When in
coating, the target is arranged at the lower surface of the transparent material plate, the laser penetrates the transparent material from the upper surface and then illuminates on the target, and then the target is heated, melted and sputtered onto a close transparent substrate, later high
calorie leads the transparent substrate to generate micro-melting, and thus causing a
coating layer to be formed on the transparent material. The device has the advantages of simpleness, low cost, high precision and good
controllability, and can coat a film with micron-level or nano-level thickness on the surface of the transparent material, wherein the film has good edge sharpness and the shape of the film can be controlled by the computer output.