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    Multilayer optical film
    1.
    发明授权
    Multilayer optical film 有权

    公开(公告)号：US12072519B2

    公开(公告)日：2024-08-27

    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 ,  B32B7/02

    CPC classification number: G02B5/305 ,  B32B7/02 ,  G02B5/3083

    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.

    Multilayer Optical Film and Glass Laminate Including Same
    2.
    发明公开
    Multilayer Optical Film and Glass Laminate Including Same 审中-公开

    公开(公告)号：US20240192415A1

    公开(公告)日：2024-06-13

    申请号：US18552250

    申请日：2022-03-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

    IPC: G02B5/28

    CPC classification number: G02B5/282

    Abstract: A multilayer optical film includes a plurality of optical repeat units where each of the optical repeat units includes at least individual first and second layers. The first and second layers in each of the optical repeat units have respective indices of refraction n1 and n2 and corresponding respective f-ratios f1 and f2 along a same in-plane first direction for a same first visible wavelength in a visible wavelength range extending from about 420 nm to about 680 nm, where n1>n2, and one of f1 and f2 is between about 0.55 and about 0.80. For illuminant D65 light incident on the multilayer optical film, the multilayer optical film reflects and transmits the incident light with the reflected and transmitted lights having 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.

    OPTICAL FILM, OPTICAL STACK AND DISPLAY SYSTEM
    7.
    发明公开
    OPTICAL FILM, OPTICAL STACK AND DISPLAY SYSTEM 审中-公开

    公开(公告)号：US20240176055A1

    公开(公告)日：2024-05-30

    申请号：US18284597

    申请日：2022-03-24

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Edward J. Kivel ,  Adam D. Haag

    IPC: G02B5/22 ,  G02B5/20 ,  G02B5/26

    CPC classification number: G02B5/22 ,  G02B5/208 ,  G02B5/26

    Abstract: An optical stack includes a light control film and an optical film disposed on the light control film. The light control film includes a plurality of visible light transmitting regions separated from each other by one or more visible light absorbing regions. The optical film includes a plurality of microlayers having an F-ratio between about 0.25 to about 0.35 or about 0.65 to about 0.75. The optical film further includes a primary reflection band having a first band edge between about 600 nanometers (nm) and about 700 nm, and a secondary reflection band having a second band edge between about 350 nm and about 460 nm. The plurality of microlayers has an average optical reflectance of greater than about 80% across a FWHM of the primary reflection band for each of mutually orthogonal first and second polarization states.

    OPTICAL FILTER AND OPTICAL SYSTEM
    8.
    发明申请
    OPTICAL FILTER AND OPTICAL SYSTEM 有权

    公开(公告)号：US20220397710A1

    公开(公告)日：2022-12-15

    申请号：US17777307

    申请日：2020-12-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Zhaohui Yang ,  Ryan T. Fabick ,  Edward J. Kivel

    IPC: G02B5/22 ,  G02B5/28 ,  H01L27/32

    Abstract: An optical filter has an average optical transmission of greater than about 50% in a visible wavelength range (e.g., wavelengths from about 420 nm to about 550 nm) and an optical density greater than about 1.5 in an infrared wavelength range (e.g., wavelengths from about 650 nm to about 800 nm). The optical filter can have a sharp band edge between the visible and infrared ranges. For example, a change in percent transmission of at least about 30% can occur over a wavelength range not greater than about 10 nm wide and/or the slope of the band edge can be greater than about 5%/nm. An optical system includes the optical filter disposed between an emissive display and an optical sensor.

    MULTILAYER STACK WITH OVERLAPPING HARMONICS FOR WIDE VISIBLE-INFRARED COVERAGE
    10.
    发明申请
    MULTILAYER STACK WITH OVERLAPPING HARMONICS FOR WIDE VISIBLE-INFRARED COVERAGE 审中-公开
    多层叠加多层叠加谐波的宽屏可见红外覆盖

    公开(公告)号：US20160170101A1

    公开(公告)日：2016-06-16

    申请号：US15048077

    申请日：2016-02-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Edward J. Kivel ,  Timothy J. Nevitt ,  Michael F. Weber

    IPC: G02B5/08 ,  G02B5/28 ,  G02B5/30

    CPC classification number: G02B5/0816 ,  G02B5/0841 ,  G02B5/26 ,  G02B5/281 ,  G02B5/287 ,  G02B5/3041

    Abstract: A broadband mirror, polarizer, or other reflector includes at least one stack of microlayers. Microlayers in the stack are arranged into optical repeat units. At a design angle of incidence such as normal incidence, the stack provides a 1st order reflection band, a 2nd order reflection band, and optionally a 3rd order reflection hand. The 2nd order reflection band overlaps, or substantially overlaps, the 1st and/or 3rd order reflection bands to form a single wide reflection band. The wide reflection band may include the 2nd and 1st but not a 3rd order reflection band, or the 2nd and 3rd but not the 1st order reflection band, or it may include the 1st, 2nd, and 3rd order reflection bands, as well as still higher order reflection bands. The wide reflection band may cover at least a portion of visible and infrared wavelengths.

    Abstract translation: 宽带镜，偏振器或其它反射器包括至少一个微层叠。 堆叠中的微层被布置成光学重复单元。 在诸如法线入射的设计入射角中，叠层提供一阶反射带，二阶反射带，以及可选的三阶反射手。 第二级反射波段与第一和/或三级反射波段重叠或基本重叠，形成单个宽反射波段。 宽反射带可以包括第2和第1反射带，或者第二和第三反射带，或者第二和第三反射带，或者可以包括第一，第二和第三阶反射带，以及静止 高阶反射带。 宽反射带可以覆盖可见光和红外波长的至少一部分。

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