An imaging apparatus provided with a lens module which has a main body and two vane members. The main body holds a lens on an inside thereof. The vane members are plate shaped sections projected from an outside surface of the main body, which are provided with through-holes enabling fastening members to be threaded through. A base is provided with an imaging element and configured to fix thereto the main body. The case which accommodates the lens, the lens module and the base has two thread-holes formed on an inside thereof, into which the fastening members are fastened thereto. The lens module is fixed to the case by threading the fastening members through the through-holes, and fastening the fastening members into the thread-holes.