Antireflective film system and optical element

The utility model provides an anti-reflection film system and an optical element. The anti-reflection film system comprises a substrate layer; the transition layer is connected with the substrate layer, the transition layer comprises at least one first film layer and at least one second film layer, when the first film layers and the second film layers are multiple, the first film layers and the second film layers are alternately stacked, and the refractive index of the first film layers is larger than that of the second film layers; and the microstructure layer is arranged on the surface of one side of the transition layer and is connected with the second film layer. According to the utility model, the problem of high reflectivity of an optical element in the prior art is solved. 本实用新型提供了一种减反膜系和光学元件。减反膜系包括：基底层；过渡层，过渡层与基底层连接，过渡层包括至少一个第一膜层和至少一个第二膜层，第一膜层和第二膜层为多个时，多个第一膜层和多个第二膜层交替叠置，第一膜层的折射率大于第二膜层的折射率；微结构层，微结构层设置在过渡层的一侧表面且微结构层与第二膜层连接。本实用新型解决了现有技术中光学元件存在反射率高的问题。