High-precision image acquisition device

The invention relates to an image acquisition device, in particular to a high-precision image acquisition device, which comprises a camera assembly provided with a protective cover, the camera assembly is provided with a camera, the front end of the camera is provided with a lens, and the lens is provided with a dust removal sleeve; the dust removal sleeve is provided with a dust removal ring provided with a plurality of air blowing holes, the air blowing holes are distributed in an annular array, meanwhile, the air blowing holes are inclined, an inner cavity is formed in the dust removal ring, the inner cavity is communicated with the air blowing holes, and the inner cavity is connected with an air blower through a hose; during use, the air blower supplies air into the air blowing holes through the inner cavity, the air removes dust of the lens through the inclined air blowing holes, and the situation that high precision of collected images is affected due to the fact that dust and dew are mixed and condense