OPTICAL INTERFERENCE FILTER
    13.
    发明申请

    公开(公告)号:US20240411072A1

    公开(公告)日:2024-12-12

    申请号:US18808234

    申请日:2024-08-19

    Abstract: In some implementations, an optical interference filter includes a substrate; and a set of layers that are disposed on the substrate, wherein the set of layers includes: a first subset of layers; and a second subset of layers; wherein: each of the first subset of layers includes an aluminum nitride (AlN) material, a stress of each of the first subset of layers is between −1000 and 800 megapascals, the first subset of layers has a first refractive index with a first value, each of the second subset of layers includes at least one other material, the second subset of layers has a second refractive index with a second value that is different than the first value, and the optical interference filter has an effective refractive index greater than or equal to 95% of a highest value of the first value and the second value.

    OPTICAL INTERFERENCE FILTER
    14.
    发明公开

    公开(公告)号:US20240085605A1

    公开(公告)日:2024-03-14

    申请号:US17931323

    申请日:2022-09-12

    CPC classification number: G02B5/286 G02B5/288

    Abstract: In some implementations, an optical interference filter includes a substrate and one or more sets of layers that are disposed on the substrate. Each set of layers includes: a first layer that comprises at least tantalum and oxygen (e.g., a tantalum pentoxide (Ta2O5) material); a second layer that comprises at least aluminum and nitrogen (e.g., an aluminum nitride (AlN) material); and a third layer that comprises at least hydrogen and silicon (e.g., a hydrogenated silicon (Si:H) material). The second layer is disposed between the first layer and the third layer. In some implementations, a first surface of the second layer is disposed on a surface of the first layer, and a second surface of the second layer is disposed on a surface of the third layer.

    OPTICAL FILTER
    16.
    发明申请
    OPTICAL FILTER 审中-公开

    公开(公告)号:US20200209448A1

    公开(公告)日:2020-07-02

    申请号:US16722325

    申请日:2019-12-20

    Abstract: An optical filter may include a set of optical filter layers disposed onto a substrate. The set of optical filter layers may include a first subset of optical filter layers comprising a first material with a first refractive index. The first material may comprise at least silicon and hydrogen. The set of optical filter layers may include a second subset of optical filter layers comprising a second material with a second refractive index. The second material is different from the first material and the second refractive index is less than the first refractive index. The set of optical filter layers may include a third subset of optical filter layers comprising a third material different from the first material and the second material.

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