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    MULTILAYER OPTICAL FILM HAVING OVERLAPPING HARMONICS
    2.
    发明公开
    MULTILAYER OPTICAL FILM HAVING OVERLAPPING HARMONICS 审中-公开
    具有重叠谐波的多层光学膜片

    公开(公告)号：EP3207411A1

    公开(公告)日：2017-08-23

    申请号：EP15851585.8

    申请日：2015-10-14

    Applicant: 3M Innovative Properties Company

    Inventor： WEBER, Michael F. ,  KIVEL, Edward J. ,  NEVITT, Timothy J. ,  O'NEILL, Mark B.

    IPC: G02B5/08 ,  G02B5/30 ,  B32B7/04

    CPC classification number: G02B5/282 ,  G02B1/11 ,  G02B1/14 ,  G02B5/0816 ,  G02B5/208 ,  G02B5/223 ,  G02B5/26 ,  G02B5/281 ,  G02B5/283 ,  G02B5/285 ,  G02B5/3041 ,  G02B27/141

    Abstract: A multilayer optical film including a stack of microlayers 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 band. The 2nd order reflection band substantially overlaps the 1st and/or 3rd order reflection bands to form a single wide reflection band. The wide reflection band may cover at least a portion of visible and infrared wavelengths. The multilayer optical film may include an additional optical layer which maybe be an anti-glare layer and/or may be an absorbing layer. The multilayer optical film is suitable for use as a window film.

    Abstract translation: 包含排列成光学重复单元的微层堆叠的多层光学膜。 在诸如法向入射的设计入射角处，叠层提供一阶反射带，二阶反射带和可选的三阶反射带。 二阶反射带与第一和/或三阶反射带基本重叠以形成单个宽反射带。 宽反射带可以覆盖可见光和红外波长的至少一部分。 多层光学膜可以包括附加光学层，其可以是防眩光层和/或可以是吸收层。 多层光学膜适合用作窗膜。

    APODIZED BROADBAND PARTIAL REFLECTORS
    4.
    发明公开
    APODIZED BROADBAND PARTIAL REFLECTORS 审中-公开
    APODISIERTE PARTIELLE BREITBANDREFLEKTOREN

    公开(公告)号：EP2769247A1

    公开(公告)日：2014-08-27

    申请号：EP12778924.6

    申请日：2012-10-17

    Applicant: 3M Innovative Properties Company

    Inventor： WEBER, Michael F. ,  NEVITT, Timothy J. ,  WHEATLEY, John A.

    IPC: G02B5/08 ,  G02B5/30 ,  G02B5/28 ,  G02B27/14

    CPC classification number: G02B5/285 ,  G02B5/0841 ,  G02B5/0891 ,  G02B5/287 ,  G02B5/3041 ,  G02B5/305 ,  G02B5/3091 ,  G02B27/142 ,  G02F1/133555

    Abstract: A broadband partial reflector includes a multilayer polymeric optical film having a total number of optical repeating units that monotonically increases in thickness value from a first side to a second side of the multilayer polymeric optical film. A baseline optical repeating unit thickness profile is defined by a first plurality of optical repeating units and having a first average slope, and a first apodized thickness profile of the multilayer polymeric optical film is defined by a second plurality of optical repeating units having a second average slope being at least 5 times greater than the first average slope. The second plurality of optical repeating units define the first side of the multilayer polymeric optical film and join the first plurality of optical repeating units. The second plurality of optical repeating units are in a range from 3-15% of the total number of optical repeating units.

    Abstract translation: 宽带部分反射器包括多层聚合物光学膜，其具有从多层聚合物光学膜的第一侧到第二面单调增加厚度值的光学重复单元的总数。 基准光学重复单元厚度分布由第一多个光学重复单元限定并且具有第一平均斜率，并且多层聚合物光学膜的第一变迹厚度分布由具有第二平均值的第二多个光学重复单元限定 坡度比第一平均坡度高至少5倍。 第二组多个光学重复单元限定多层聚合物光学薄膜的第一侧并连接第一组多个光学重复单元。 第二多个光学重复单元在光学重复单元总数的3-15％的范围内。

    DESIGN PARAMETERS FOR THIN HOLLOW CAVITY BACKLIGHTS OF THE LIGHT-RECYCLING TYPE
    8.
    发明公开
    DESIGN PARAMETERS FOR THIN HOLLOW CAVITY BACKLIGHTS OF THE LIGHT-RECYCLING TYPE 有权
    设计参数LIGHT循环型的超薄腔体倒车灯

    公开(公告)号：EP2162785A2

    公开(公告)日：2010-03-17

    申请号：EP08755853.2

    申请日：2008-05-19

    Applicant: 3M Innovative Properties Company

    Inventor： NEVITT, Timothy J. ,  HEBRINK, Timothy J. ,  WEBER, Michael F. ,  BIERNATH, Rolf W. ,  FREIER, David, G. ,  WHEATLEY, John A. ,  OUDERKIRK, Andrew J., ,  HOYLE, Charles D. ,  DERKS, Kristopher J.

    IPC: G02F1/13357 ,  G02B6/00

    CPC classification number: F21V7/04 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02B6/0096 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/13362

    Abstract: A backlight unit (10), for a display or for general Iighting purposes, has a hollow cavity (16) instead of a solid Iight guide. One or more Iight sources (24a-c), e.g. LEDs, emit Iight into the cavity, which is formed by a front (12) and a back reflector (14). The backlight has either a directly-lit or an edge-lit configuration; it can have a Iarge area and still be thin; it consists of fewer components than conventional devices and its design permits the reuse of Iight reflected internally (Iight recycling). The unit emits Iight of a predefined polarisation and its viewing angle properties can be tailored. Light is uniformly distributed within the guide and the guide's output (20b, 20d) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range from 0.0001 to 0.1 ; and second, the ratio of SEP (an average plan view source separation, which is a measure of the average spacing of the Iight sources in the plane of the unit) to the height of the cavity (H) should be in the range from 3 to 10. There is also a discussion of the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. The backlight exhibits a minimum brightness uniformity (VESA) value, even when a subset of M adjacent sources is switched off (where M is at least 0.1 N or M>2 or both).

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