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公开(公告)号:US20220082742A1
公开(公告)日:2022-03-17
申请号:US17416963
申请日:2019-12-20
IPC分类号: G02B5/26
摘要: A nano-structure layer is disclosed. The nano-structure layer includes a plurality of nano-photonic structures that are configured in a first configuration such that light incident upon the nanostructured layer below a cut-off angle passes through the nanostructured layer and light incident upon the nanostructured layer above the cut-off angle is reflected back in direction of the incidence.