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21 条记录 (耗时 0.029 秒)

    INTERNALLY PATTERNED MULTILAYER OPTICAL FILMS WITH MULTIPLE BIREFRINGENT LAYERS
    7.
    发明申请
    INTERNALLY PATTERNED MULTILAYER OPTICAL FILMS WITH MULTIPLE BIREFRINGENT LAYERS 有权
    内置多层多层光学膜与多层双层

    公开(公告)号：US20110249334A1

    公开(公告)日：2011-10-13

    申请号：US13139856

    申请日：2009-12-22

    申请人： William Ward Merrill ,  Douglas S. Dunn ,  Stephen A. Johnson ,  David T. Yust

    发明人： William Ward Merrill ,  Douglas S. Dunn ,  Stephen A. Johnson ,  David T. Yust

    IPC分类号： G02B5/30 ,  G02B1/12 ,  B29D11/00

    CPC分类号： G02B5/3041 ,  B42D25/23 ,  B42D25/24 ,  B42D25/391 ,  G02B5/0816 ,  G02B5/0841 ,  G02B5/285 ,  G02B5/287 ,  G02B5/30 ,  G02B5/305 ,  G02B5/3083 ,  G02B27/28 ,  G02F1/133536 ,  G02F1/13363 ,  G02F2001/133521 ,  Y10T428/24942

    摘要： A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. The interior layers include a first set of layers composed of a first material and a second set of layers composed of a different second material. The first and second sets of layers are both birefringent in the first zone, but at least some of the layers have reduced birefringence in the second zone. The reduced birefringence produces a second reflective characteristic in the second zone that differs from a first reflective characteristic in the first zone, this difference not being substantially attributable to any thickness difference between the first and second zones. The film may also incorporate absorbing agents to assist in the manufacture or processing of the film. Related methods and articles are also disclosed.

    摘要翻译： 反射膜包括通过结构性或相消干涉选择性地反射光的内层，层从膜的第一区延伸到第二区。 内层包括由第一材料构成的第一组层和由不同的第二材料组成的第二组层。 第一组和第二组在第一区域都是双折射的，但是至少一些层在第二区域中具有降低的双折射率。 减小的双折射在第二区域中产生与第一区域中的第一反射特性不同的第二反射特性，该差异基本上不能归因于第一和第二区域之间的任何厚度差异。 该薄膜还可以包含吸收剂以协助制造或加工薄膜。 还公开了相关的方法和文章。

    HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS
    8.
    发明申请
    HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS 审中-公开
    高传输通量水平多层光学膜和相关构造

    公开(公告)号：US20110222263A1

    公开(公告)日：2011-09-15

    申请号：US13129468

    申请日：2009-11-17

    申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Stephen A. Johnson ,  Yufeng Liu ,  David T. Yust

    发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Stephen A. Johnson ,  Yufeng Liu ,  David T. Yust

    IPC分类号： F21V9/14 ,  G02B5/30

    CPC分类号： G02B5/305 ,  B32B3/08 ,  B32B7/02 ,  B32B27/08 ,  B32B27/302 ,  B32B27/32 ,  B32B2250/24 ,  B32B2307/412 ,  B32B2307/416 ,  B32B2307/418 ,  B32B2307/514 ,  B32B2307/518 ,  B32B2307/52 ,  B32B2307/5825 ,  B32B2307/584 ,  B32B2551/00 ,  G02F2001/133507

    摘要： A reflective film includes microlayers arranged into optical repeat units, each optical repeat unit including a negatively birefringent microlayer. The microlayers are tailored to provide the film with on-axis polarizing properties, such that normally incident light polarized along a block axis is substantially reflected and normally incident light polarized along a pass axis is substantially transmitted. On-axis transmission for the block axis may be 70%. The microlayers also provide the film with angularly dependent polarizing properties: p-polarized light incident in a block plane of incidence is substantially reflected at near-normal angles but substantially transmitted at an oblique angle. The film transmits unpolarized light incident in this plane more strongly at the oblique angle than at normal. The films can be used in direct-lit backlights, luminaires, and similar lighting systems for flux leveling to promote spatial brightness uniformity.

    摘要翻译： 反射膜包括布置成光学重复单元的微层，每个光学重复单元包括负双折射微层。 微层被定制以提供具有轴上偏振特性的膜，使得沿着块轴偏振的正常入射光被基本反射，并且通常沿着通过轴偏振的入射光基本上被透射。 块轴的轴向传动可能<20％，而传动轴的轴上传动可能> 70％。 微层还为膜提供具有角度依赖的偏振性质：入射在块平面中的p偏振光基本上在近似的角度反射，但基本上以倾斜角传播。 该膜以比正常情况下更倾斜地倾斜入射在该平面中的非偏振光。 这些胶片可用于直射式背光源，灯具和类似的照射系统，用于助焊剂流平，以促进空间亮度均匀性。

    Optical stack having birefringent layer of optically symmetrical crystallites
    9.
    发明授权
    Optical stack having birefringent layer of optically symmetrical crystallites 有权
    具有光学对称晶体的双折射层的光学堆叠

    公开(公告)号：US09069136B2

    公开(公告)日：2015-06-30

    申请号：US13638765

    申请日：2011-06-13

    申请人： Michael F. Weber ,  Yufeng Liu ,  Stephen A. Johnson ,  David T. Yust

    发明人： Michael F. Weber ,  Yufeng Liu ,  Stephen A. Johnson ,  David T. Yust

    IPC分类号： G02B5/30

    CPC分类号： G02B5/3083 ,  G02B5/305

    摘要： An optical stack (400) having a plurality of alternating polymeric layers (401, 402) is described. The alternating layers may be alternating birefringent (syndiotactic polystyrene, sPS) and isotropic (CoPENa) layers, or alternating positively and negatively birefringent layers. Birefringent layers are made using polymers which form optically symmetrical crystallites upon stretching of the polymer. The optical stack has a large refractive index difference in the x-direction (the stretching direction) and small refractive index differences in the y- and z-directions (the non-stretching directions). The optical stack can be made using standard film tentering methods and may be a multilayer reflective polarizer.

    摘要翻译： 描述了具有多个交替聚合层（401,402）的光学堆叠（400）。 交替层可以是交替的双折射（间同立构聚苯乙烯，sPS）和各向同性（CoPENa）层，或交替的正负双折射层。 使用在聚合物拉伸时形成光学对称微晶的聚合物制备双折射层。 光学叠层在x方向（拉伸方向）上的折射率差大，y方向和z方向（非拉伸方向）的折射率差小。 光学堆叠可以使用标准薄膜拉制方法制成，并且可以是多层反射偏振器。