▎ 摘　　要

NOVELTY - The device has a reflecting mirror (3) set on emergent light path of an acousto-optic modulator (2) that is set on emergent light path of a laser (1). A lens (4), a diaphragm (5) and a dichroic mirror (6) are orderly arranged on reflecting light path of reflecting mirror. An objective lens (7) and a three-dimensional precision displacement platform (9) are orderly set on reflected light path of dichroic mirror. A color filter (10), a lens (11) and a photoelectric detector (12) are set on transmission light path of mirror. A computer (13) is connected to signal input end of modulator. USE - Device for preparing multi-layer micro-nano pattern of graphene oxide film. ADVANTAGE - The synchronous preparation of multi-layer micro-nano pattern is realized by simple manufacturing process at low preparation cost and wide application range of micro-nano pattern. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing multi-layer micro-nano pattern of graphene oxide film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of the device for preparing multi-layer micro-nano pattern of graphene oxide film. Laser (1) Acousto-optic modulator (2) Reflecting mirror (3) Lens (4) Dichroic mirror (5) Objective lens (7) Three-dimensional precision displacement platform (9) Color filter (10) Lens (11) Photoelectric detector (12) Computer (13)