Optical apparatus and equipment
    2.
    发明授权

    公开(公告)号:US11332409B2

    公开(公告)日:2022-05-17

    申请号:US16694383

    申请日:2019-11-25

    IPC分类号: H01L27/146 C04B35/584

    摘要: A curved surface constituting a convex surface or a concave surface of each of a plurality of lenses includes at least a silicon nitride layer and another silicon nitride layer. An interlayer having a composition different from a composition of the silicon nitride layer and a composition of the other silicon nitride layer is arranged between the silicon nitride layer and the other silicon nitride layer, and a thickness of the interlayer is less than a thickness of the silicon nitride layer and a thickness of the other silicon nitride layer.

    OPTICAL APPARATUS AND EQUIPMENT
    3.
    发明申请

    公开(公告)号:US20200172443A1

    公开(公告)日:2020-06-04

    申请号:US16694383

    申请日:2019-11-25

    IPC分类号: C04B35/584 H01L27/146

    摘要: A curved surface constituting a convex surface or a concave surface of each of a plurality of lenses includes at least a silicon nitride layer and another silicon nitride layer. An interlayer having a composition different from a composition of the silicon nitride layer and a composition of the other silicon nitride layer is arranged between the silicon nitride layer and the other silicon nitride layer, and a thickness of the interlayer is less than a thickness of the silicon nitride layer and a thickness of the other silicon nitride layer.