PROBLEM TO BE SOLVED: To provide a fine structure which is bent more easily than the conventional fine structure used as a screen grid in a concentric and circular manner.SOLUTION: The fine structure has a base plate 2 and a grating 3 made of metal provided on the substrate. The grating 3 is provided with a plurality of holes 7, and the plurality of holes are arranged in a first direction. In the fine structure 1, the maximum value of distance between the center 4 of gravity of a grating region comprising the grating and the plurality of holes and an outer edge 5 of the grating region is smaller than 1.39 times as long as the minimum value of distance between the center 4 of gravity of the grating region and the outer edge 5 of the grating region in a flat plane including the first direction.【課題】 従来遮蔽格子として用いられてきた微細構造体よりも同心円状に湾曲させやすい微細構造体を提供すること。【解決手段】 微細構造体は、基板２と、基板に設けられた金属からなる格子３と、を有する。格子３には複数の孔７が設けられており、複数の孔は、第１の方向に配列されている。また、この微細構造体１は、第１の方向を含む平面において、格子と複数の孔とからなる格子領域の重心４と、格子領域の外縁５と、の距離の最大値が、格子領域の重心４と格子領域の外縁５との距離の最小値の１．３９倍よりも小さい。【選択図】 図１
