OPTICAL INTERFERENCE FILTER
    1.
    发明公开

    公开(公告)号:US20240069262A1

    公开(公告)日:2024-02-29

    申请号:US17821606

    申请日:2022-08-23

    CPC classification number: G02B5/286 G02B5/207 G02B5/288

    Abstract: An optical interference filter includes one or more sets of layers. Each set of layers includes a first layer that includes at least aluminum and nitrogen (e.g., an aluminum nitride (AlN) material), a second layer that includes at least silicon and oxygen (e.g., a silicon dioxide (SiO2) material), and a third layer that includes 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.

    OPTICAL INTERFERENCE FILTER
    2.
    发明公开

    公开(公告)号:US20230168418A1

    公开(公告)日:2023-06-01

    申请号:US17457123

    申请日:2021-12-01

    CPC classification number: G02B5/286 G02B1/10

    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 comprises 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 comprises 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
    5.
    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
    6.
    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.

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