Patent ID: 9212047
Filing Date: 2015-12-15
Classification: B81B,G02B,H02K

Abstract:
1. An electromagnetically actuated microshutter comprising: a moveable plate configured to rotate about an axis, connected to a stationary frame by two arms aligned on both sides of the plate according to said axis, and comprising on its periphery a conductive loop; and below an assembly formed by the stationary frame and the moveable plate, a group of magnets having distinct magnetic orientations, arranged in such a manner so as to create, in regard to the moveable plate, a lateral magnetic field, in the plane of the frame, not parallel to the axis of rotation; wherein said group of magnets comprises three adjacent magnets, juxtaposed in a same plane parallel to the plane of the stationary frame, a central one of said three adjacent magnets having a width within substantially plus or minus 30% of a width of the moveable plate and a lateral magnetic orientation; and peripheral magnets of the three adjacent magnets having magnetic orientations that are orthogonal to the plane of the frame and of opposite direction, the dimensions of said group of magnets being, when seen from above, within substantially plus or minus 30% of dimensions of the assembly formed by the stationary frame and the moveable plate.