US Patent 11375093 Optical member driving device, camera device, and electronic apparatus

An optical member driving device is described that includes a fixed portion having a plate-like base with a through hole, a movable portion having a spring plate to place an optical member on it, and a SMA driving portion having a SMA wire and driving the movable portion. The spring plate has a spring plate main body and two arm portions extending from the spring plate main body and fixed on a plate surface of the base. The spring plate main body is entirely located inside the through hole when viewed from a normal direction of the plate surface.