OPTICAL SCANNING ELEMENT AND IMAGE DISPLAY DEVICE

摘要

This optical scanning element is provided with: a first movable part having a first frame body supported by a coil magnetized by application of an electric current, a pair of first girder parts provided on the inside of the first frame body, a first movable plate connected by the first girder parts to a first frame plate so as to be able to rotate, an a magnet provided to a portion of the first movable plate; and a second movable part having a second frame body connected to the first movable plate, a pair of second girder parts provided on the inside of the second frame body, and a second movable plate including a light-reflecting surface on at least one side thereof and connected by the second girder parts to the second frame body so as to be able to rotate; the optical scanning element being characterized in that the center of gravity of the system comprising the synthesis of the first movable plate, the second movable part, and the magnet is set so as to be on the central axis of a cross-section of the first girder parts.