▎ 摘　　要

NOVELTY - The device has a shell formed with a containing cavity that is fixed with a digital micro-mirror device (DMD). The DMD and the circuit board are provided with a first connector and a second connector. The DMD and the circuit board are electrically connected with each other through the first connector and the second connector. A radiator is connected with a side of the circuit board far away from the DMD and fixed with the shell, where heat generated by the DMD is conducted to a second portion of a radiating graphene from a first graphene of a radiating fin. USE - DMD imaging device for use in device such as three-dimesional (3D) scanning apparatus, 3D printing device or projector (all claimed). ADVANTAGE - The device improves working efficiency and radiating efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the DMD imaging device. 2DMD 3Graphene radiating fin 4Circuit board 5Radiator 21First connector 36First graphene radiating fin 37Second graphene radiating fin 42Elastic pressing sheet 53Avoiding abdication 131Location column 382Second sealing strip 421Gap 512Routing channel 513Third sealing strip