Optical element and manufacturing method thereof

A method for manufacturing an optical element comprises the steps that oblique evaporation is conducted on a base material to form at least one first inorganic oxide film pair on the surface of the base material; and forward evaporation is conducted on the base material to form at least one second inorganic oxide film pair on the first inorganic oxide film, and the material of any one of the first inorganic oxide film pair and the second inorganic oxide film pair comprises at least one of a metal element and silicon. By means of the optical element and the manufacturing method of the optical element, the effect of saving the manufacturing cost can be achieved for the optical element with a better optical effect and a smaller film thickness, and a wider application range is achieved. 一种制造光学元件的方法包含：对基材斜向蒸镀，以在基材的表面上形成至少一第一无机氧化物膜对；以及对基材正向蒸镀，以在第一无机氧化物膜上形成至少一第二无机氧化物膜对，其中第一无机氧化物膜对与第二无机氧化物膜对的任一者的材料包含金属元素及硅中之至少一者。本揭露所提供的光学元件及其制造方法可以为具有更佳的光学效果及更薄的膜厚的光学元件达到节省制造成本的效果，并且使其具有更广泛的应用范围。