Optical Element and Method of Producing the Same

专利名称：Optical Element and Method of Producing

the Same

发明人：Yohei Tanikawa申请号：US13175179申请日：20110701

公开号：US20120002286A1公开日：20120105

专利附图：

摘要：Provided is an optical element including a substrate; a plurality of pillarsarranged on the surface of the substrate at a pitch equal to or less than the wavelengthof incident light; a medium filling gaps between the pillars, the medium having a refractive

index different from that of the pillars; and a film-like portion disposed at a positionwhere it covers the entirety of a light-incident surface formed of at least one of thesurface of the substrate, the tip surfaces of the pillars, and the surface of the medium,the film-like portion having a refractive index different from that of the pillars. The film-like portion has a film thickness such that it exhibits a reflection-preventing functionrealized by interference, and the volume ratio of the pillars to the medium changes in adirection along the surface of the substrate.

申请人：Yohei Tanikawa

地址：Hino-shi JP

国籍：JP

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