An imaging device includes a base, an illuminating device, a first housing element, and a second housing element. The first housing element defines a cutout. The first housing element further includes at least one fixing piece from an edge of the first housing element. The second housing element is similar configuration to the first housing element. When the first housing element is fixed to the second housing element, the two cutouts defines an engaging hole, the illuminating device extends from the engaging hole from the base, the two fixing pieces engage with the illuminating device to fix the illuminating device to the base.