Optical element, the thin film structure, optical switches, and, method of manufacturing an optical element

Providing an optical element the light beam with a reflective possible reflection portion in a desired direction. It includes a substrate 21, a light reflecting portion 101, the light reflecting portion 101 and a support portion 102 for supporting on the substrate 21. Light reflecting portion 101 and the support 102 are each constituted by one or more membranes. Support portion 102 has one end 102c is fixed to the substrate 21, is connected to the film other end 102d constitutes a light reflecting portion 101, by bending toward the other 102d from one end 102c, constituting the light reflecting portion 101 the main plane of the film to be non-parallel, supports e.g. perpendicularly to the main plane of the substrate 21.