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    HYBRID POLARIZER
    14.
    发明申请
    HYBRID POLARIZER 审中-公开

    公开(公告)号：US20200073038A1

    公开(公告)日：2020-03-05

    申请号：US16678157

    申请日：2019-11-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    IPC: G02B5/30 ,  G02F1/1335 ,  G02B27/28

    Abstract: A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

    Filters to enhance color discrimination for color vision deficient individuals
    15.
    发明授权
    Filters to enhance color discrimination for color vision deficient individuals 有权

    公开(公告)号：US10054803B2

    公开(公告)日：2018-08-21

    申请号：US14759244

    申请日：2014-01-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Chad R. Wold ,  Michael F. Weber

    IPC: G02C7/10 ,  A61B3/06 ,  G02B5/22 ,  G02B5/28

    CPC classification number: G02C7/104 ,  A61B3/066 ,  G02B5/22 ,  G02B5/285

    Abstract: Certain filters have been found to enhance color discrimination for individuals with color vision deficiency (CVD), aka color-blind individuals. The filters generally include a multilayer optical film with a strong, narrow reflection band in part of the green region of the visible spectrum. The film has an average internal transmission from 420-680 nm of at least 50%, 60%, or 70%, and an average internal transmission≤10%, 5%, 2%, or 1% over a 10 nm wide range that includes 550 nm associated with a reflection band having a width (FWHM) of 60 nm or 50 nm or less. The filter may include a magenta layer disposed on a viewer side of the multilayer optical film to reduce glare, the magenta layer selectively absorbing green light. The magenta layer combined with the multilayer optical film may provide a rejection band whose width (FWHM) is 60 nm or less.

    Low layer count reflective polarizer with optimized gain
    19.
    发明授权
    Low layer count reflective polarizer with optimized gain 有权

    公开(公告)号：US09513420B2

    公开(公告)日：2016-12-06

    申请号：US14800982

    申请日：2015-07-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kristopher J. Derks ,  Michael F. Weber ,  Shandon D. Hart ,  Carl A. Stover

    IPC: G02B5/30 ,  G02B27/28

    CPC classification number: G02B5/3066 ,  G02B5/3041 ,  G02B5/305 ,  G02B5/3083 ,  G02B27/283

    Abstract: Multilayer reflecting polarizing films are disclosed having increased in-plane refractive index differences between adjacent microlayers along both the pass and block axis, and having negative refractive index differences between adjacent microlayers along the thickness or z-axis. Major front and back surfaces of the film exposed to air provide a Fresnel reflectivity component to the pass axis reflectivity, and the microlayers provide a microlayer component to the pass axis reflectivity, such microlayer component preferably having a reflectivity of p-polarized light that increases with incidence angle faster than the Fresnel reflectivity component decreases so as to substantially avoid off-axis gain peaks for p-polarized light. The films preferably utilize a relatively small total number of microlayers, arranged in a single coherent stack with monotonic optical repeat unit thickness profile, and at least some microlayers preferably include polyethylene naphthalate or a copolymer thereof.

    FILTERS TO ENHANCE COLOR DISCRIMINATION FOR COLOR VISION DEFICIENT INDIVIDUALS
    20.
    发明申请
    FILTERS TO ENHANCE COLOR DISCRIMINATION FOR COLOR VISION DEFICIENT INDIVIDUALS 审中-公开
    过滤器可增强颜色辨识色彩缺乏个性

    公开(公告)号：US20160077361A1

    公开(公告)日：2016-03-17

    申请号：US14759244

    申请日：2014-01-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Chad R. Wold ,  Michael F. Weber

    IPC: G02C7/10 ,  G02B5/22

    CPC classification number: G02C7/104 ,  A61B3/066 ,  G02B5/22 ,  G02B5/285

    Abstract: Certain filters have been found to enhance color discrimination for individuals with color vision deficiency (CVD), aka color-blind individuals. The filters generally include a multilayer optical film with a strong, narrow reflection band in part of the green region of the visible spectrum. The film has an average internal transmission from 420-680 nm of at least 50%, 60%, or 70%, and an average internal transmission ≦10%, 5%, 2%, or 1% over a 10 nm wide range that includes 550 nm associated with a reflection band having a width (FWHM) of 60 nm or 50 nm or less. The filter may include a magenta layer disposed on a viewer side of the multilayer optical film to reduce glare, the magenta layer selectively absorbing green light. The magenta layer combined with the multilayer optical film may provide a rejection band whose width (FWHM) is 60 nm or less.

    Abstract translation: 已经发现某些过滤器可以增强色觉缺陷（CVD）的个体的色差，也就是色盲个体。 滤光片通常包括在可见光谱的绿色区域的一部分中具有强的窄反射带的多层光学膜。 该薄膜在10nm宽范围内具有420-680nm的平均内部透射率至少为50％，60％或70％，平均内透射率为10％，5％，2％或1％ 其包括与具有60nm或50nm以下的宽度（FWHM）的反射带相关联的550nm。 滤光器可以包括设置在多层光学膜的观察者侧的品红色层以减少眩光，品红色层选择性地吸收绿色光。 与多层光学膜结合的品红色层可以提供宽度（FWHM）为60nm以下的抑制带。

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