Patent ID: 8707784

Claim:
A laminated structure, when three mutually orthogonal axes are defined as an x-axis, a y-axis and a z-axis, a substrate surface is defined as an x-y plane, and an n-spring is defined as a member having a spring constant in a direction of an n-axis that is smaller than spring constants in other directions, where n is one of either x, y or z, comprising: an outer movable portion provided with two sides extending in an x-axis direction and two sides extending in a y-axis direction; and an inner movable portion housed inside the outer movable portion when viewed from a z-axis direction; wherein a y-spring is connected to the outer movable portion, and the outer movable portion is displaceably supported in the y-axis direction by the y-spring at a height apart from the substrate, a z-spring is connected to the inner movable portion, and the inner movable portion is displaceably supported in the z-axis direction by the z-spring at a height apart from the substrate, the outer movable portion and the z-spring are formed in different layers at different heights from the substrate, and the z-spring overpasses across the outer movable portion at a height apart from the outer movable portion.