MPOS是一种由数百万个方形玻璃微孔结构组成的掠入射型聚焦光学元件，可将X射线和紫外等波段的光子进行聚焦，其内部方孔呈辐射状排布。根据应用波段的不同，可在方孔内部镀制不同的膜层材料。MPOS可装配成近似Wolter-I的光学结构，这种辐射状的排列方式具有大的有效面积几何面积比。

MPOS composed of millions of square glass micropores is a grazing-incidence focusing optical device that can focus photons in wavelengths such as X-ray and ultraviolet, and internal square pores are arranged in a radial pattern. In order to obtain the better focusing performance, the inner wall of micropore can also be coated with a reflecting film, and different film materials can be selected for different application bands. The MPOS can be assembled to approximate a Wolter-I optical system, this radial arrangement has many advantages: large effective area to geometric area ratio.