Mirror structure and optical scanner having the same

The optical scanner is provided which includes a large driving angle while having write down the dynamic deformation, which can implement a high resolution image quality of the mirror structure, and this. The back surface of the mirror scanner for reflecting the light source perpendicular to the times that the center of oscillation of the mirror shaft to form a plurality of vertical ribs. Further, the rotation shaft and has a predetermined distance, constitute a horizontal rib forms a perpendicular relationship with said vertical ribs. Deriving the mirror size, the rotational moment of inertia, the driving angle and the like of the optimum dynamic deformation of a ring that is coupled between the variable design parameters and can be the mirror is scanning the video signal, while in the right place and high-speed rotation is possible. Optical scanners, mirrors, rib, Optimization