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    Multilayer Optical Film and Glass Laminate Including Same
    17.
    发明公开
    Multilayer Optical Film and Glass Laminate Including Same 审中-公开

    公开(公告)号：US20240184027A1

    公开(公告)日：2024-06-06

    申请号：US18552218

    申请日：2022-03-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Raghunath Padiyath ,  Lin Zhao ,  Gilles J. Benoit ,  Matthew B. Johnson ,  Edward J. Kivel

    IPC: G02B5/28 ,  G02B1/111

    CPC classification number: G02B5/282 ,  G02B1/111

    Abstract: A multilayer optical film includes a plurality of alternating polymeric first and second layers and optically absorptive material dispersed in at least one layer of the multilayer optical film. The multilayer optical film has an average optical transmittance in a visible wavelength range extending from about 450 nm to about 650 nm of about 0.5% to about 40%, an average optical reflectance in the visible wavelength range of less than about 40%, and an average optical reflectance in an infrared wavelength range extending from about 850 nm to about 1200 nm of greater than about 60%. For illuminant D65 light incident on the multilayer optical film, the multilayer optical film reflects and transmits portions of the incident light as reflected and transmitted lights that have color shifts below specified limits in a CIE L*a*b* color space. A glass laminate includes the multilayer optical film disposed between glass layers.

    MULTILAYER OPTICAL FILM
    19.
    发明申请
    MULTILAYER OPTICAL FILM 有权

    公开(公告)号：US20220163713A1

    公开(公告)日：2022-05-26

    申请号：US17605683

    申请日：2020-05-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam D. Haag ,  William B. Black ,  Robert M. Biegler ,  Matthew B. Johnson ,  Edward J. Kivel

    IPC: G02B5/30

    Abstract: A multilayer optical film includes a plurality of polymeric layers arranged sequentially adjacent to each other. A difference in thickness between spaced apart first and second polymeric layers in the plurality of polymeric layers is less than about 10%. Each polymeric layer that is disposed between the first and second polymeric layers has a thickness less than about 400 nm. Each layer in a group of at least three polymeric layers in the plurality of polymeric layers that are disposed between the first and second polymeric layers has a thickness greater than an average thickness of the first and second polymeric layers by about 20% to about 500%. The group of at least three polymeric layers includes at least one pair of immediately adjacent polymeric layers.

    Optical filter
    20.
    发明授权
    Optical filter 有权

    公开(公告)号：US11016229B2

    公开(公告)日：2021-05-25

    申请号：US16095406

    申请日：2017-05-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： John A. Wheatley ,  Gilles J. Benoit ,  Todd A. Ballen ,  Kenneth L. Smith ,  Guanglei Du ,  Edward J. Kivel ,  Rolf W. Biernath ,  Jordan D. Whitney ,  Daniel J. Schmidt

    IPC: G02B5/20 ,  G02B27/28 ,  G02B5/26 ,  G02B5/30

    Abstract: An optical filter including a polarizer and a visible light blocking filter is described. The polarizer is configured to transmit at least 60 percent of light in a first infrared wavelength range that is incident on the polarizer at normal incidence in a first polarization state, to transmit less than 30 percent of light in a second infrared wavelength that is incident on the polarizer at normal incidence in a second polarization state orthogonal to the first polarization state, and to transmit less than 30 percent of light in a third infrared wavelength range that is incident on the polarizer with a 50 degree angle of incidence in the second polarization state. The visible light blocking filter configured to transmit at least 60 percent of light in the first infrared wavelength range at normal incidence in the first polarization state.

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