MULTI-BANDPASS OPTICAL INTERFERENCE FILTER

    公开(公告)号:US20230012033A1

    公开(公告)日:2023-01-12

    申请号:US17809331

    申请日:2022-06-28

    Abstract: An optical device includes an optical sensor, a dye-based optical filter, and a multi-bandpass optical interference filter. The multi-bandpass optical interference filter is configured to pass a first spectral range of visible light, a second spectral range of visible light, and a third spectral range of visible light. The second spectral range does not overlap with the first spectral range, and the third spectral range does not overlap with the first spectral range and the second spectral range. The multi-bandpass optical interference filter is further configured to prevent passage of a fourth spectral range of near-infrared light. An angle shift associated with each spectral range, of the first spectral range, the second spectral range, and the third spectral range, is less than or equal to 2.0% of a center wavelength of the spectral range for angles of incidence between 0 and 30 degrees.

    OPTICAL FILTER
    12.
    发明申请

    公开(公告)号:US20210318476A1

    公开(公告)日:2021-10-14

    申请号:US17213833

    申请日:2021-03-26

    Abstract: In some implementations, an optical filter includes a first set of layers configured to pass light associated with a first wavelength range; a second set of layers configured to reflect light associated with at least one subrange of the first wavelength range; and a third set of layers configured to reflect light associated with a second wavelength range. In some implementations, the first wavelength range comprises an upper wavelength cutoff associated with a wavelength threshold, and the second wavelength range comprises a lower wavelength cutoff associated with the wavelength threshold. In some implementations, the optical filter includes a fourth set of layers configured to absorb a particular percentage of light in the first wavelength range.

    SENSOR WINDOW
    14.
    发明申请

    公开(公告)号:US20210247555A1

    公开(公告)日:2021-08-12

    申请号:US17302274

    申请日:2021-04-29

    Abstract: A sensor window may include a substrate and a set of layers disposed onto the substrate. The set of layers may include a first subset of layers of a first refractive index and a second set of layers of a second refractive index different from the first refractive index. The set of layers may be associated with a threshold transmissivity in a sensing spectral range. The set of layers may be configured to a particular color in a visible spectral range and may be associated with a threshold opacity in the visible spectral range.

    MULTILAYER OPTICAL COATING WITH METASTRUCTURES

    公开(公告)号:US20250155621A1

    公开(公告)日:2025-05-15

    申请号:US18946380

    申请日:2024-11-13

    Inventor: Markus BILGER

    Abstract: In some implementations, an optical filter assembly includes a first optical element disposed on a first side of a substrate, wherein the first optical element includes a first metasurface structure; a second optical element disposed on a second side of the substrate, wherein the second optical element includes a second metasurface structure; and a multi-layer optical coating disposed between the first optical element and the second optical element.

    TIME OF FLIGHT-BASED THREE-DIMENSIONAL SENSING SYSTEM

    公开(公告)号:US20250116759A1

    公开(公告)日:2025-04-10

    申请号:US18985284

    申请日:2024-12-18

    Abstract: A light shaping optic may include a substrate. The light shaping optic may include a structure disposed on the substrate, wherein the structure is configured to receive one or more input beams of light with a uniform intensity field and less than a threshold total intensity, and wherein the structure is configured to shape the one or more input beams of light to form one or more output beams of light with a non-uniform intensity field and less than the threshold total intensity.

    SECURITY ARTICLE AUTHENTICATION
    20.
    发明申请

    公开(公告)号:US20230001733A1

    公开(公告)日:2023-01-05

    申请号:US17809764

    申请日:2022-06-29

    Abstract: A user device may cause light to be emitted at a security article by one or more light emission devices of the user device. The user device may obtain from a first set of one or more optical sensor devices of the user device first sensor data associated with the security article, and may obtain from a second set of one or more optical sensor devices of the user device second sensor data associated with the security article. The user device may determine, based on the first sensor data and the second sensor data, one or more characteristics of a security feature of the security article. The user device may determine, based on the one or more characteristics of the security feature, whether the security article is authentic. The user device may cause, based on determining whether the security article is authentic, one or more actions to be performed.

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