A metal cyanide complex catalyst and its preparation and application are disclosed. Furthermore, an image correction device has a mounting device, which is configured to be indirectly or directly fastened on a windshield in the interior of a motor vehicle, and a transparent rectifying pane, which is fastened on the mounting device. The circuit board 20 is fixed to the lens holding frame 10, such that at least a part of the reinforcing plate 22 is disposed between the first pair of restricting members, and that both ends of the part of the reinforcing plate 22 disposed between the first pair of restricting members are restricted by the first pair of restricting members.