Process for manufacturing polymeric optical film
    4.
    发明授权
    Process for manufacturing polymeric optical film 失效
    聚合物光学薄膜的制造方法

    公开(公告)号:US07132065B2

    公开(公告)日:2006-11-07

    申请号:US10364940

    申请日:2003-02-12

    IPC分类号: B29C55/14

    CPC分类号: B29C55/165

    摘要: A process for making an optical film includes stretching a polyolefin film in a first direction and stretching the polyolefin film in a second direction different than the first direction forming a biaxially stretched polyolefin film. At least a portion of the stretching of the polyolefin film in the second direction occurs simultaneous with the stretching of the polyolefin film in the first direction. The biaxially stretched polyolefin film has a length and a width and substantially non-absorbing and non-scattering for at least one polarization state of visible light. The biaxially stretched polyolefin film has x, y, and z orthogonal indices of refraction where at least two of the orthogonal indices of refraction are not equal, an in-plane retardance being 100 nm or less and an out-of-plane retardance being 50 nm or greater.

    摘要翻译: 制造光学膜的方法包括在第一方向拉伸聚烯烃膜并沿与第一方向不同的第二方向拉伸聚烯烃膜形成双轴向拉伸的聚烯烃膜。 聚烯烃膜在第二方向的拉伸的至少一部分与聚烯烃膜沿第一方向的拉伸同时发生。 双轴拉伸聚烯烃膜具有长度和宽度,并且对于至少一种可见光的偏振状态具有基本上不吸收和非散射性。 双轴拉伸聚烯烃膜具有x,y和z正交折射率,其中至少两个正交折射率不相等,面内延迟为100nm以下,面外延迟为50 nm以上。

    Post-forming continuous/disperse phase optical bodies
    7.
    发明授权
    Post-forming continuous/disperse phase optical bodies 失效
    后成型连续/分散相光学体

    公开(公告)号:US06256146B1

    公开(公告)日:2001-07-03

    申请号:US09127314

    申请日:1998-07-31

    IPC分类号: G02B530

    摘要: Diffusely reflective articles manufactured from optical bodies including continuous and disperse phases are disclosed along with methods of manufacturing such articles. Also disclosed are underdrawn continuous/disperse phase optical bodies that are particularly well-suited to post-forming operations. The articles, methods and optical bodies of the present invention preferably allow for post-forming of the optical bodies while retaining desired levels of diffuse reflectivity in the articles formed from the optical bodies.

    摘要翻译: 公开了由包括连续分散相的光学体制造的漫反射制品以及制造这种制品的方法。 还公开了非常适合后成型操作的脱墨连续/分散相位光学体。 本发明的制品,方法和光学体优选地允许光学体的后成形,同时在由光学体形成的制品中保持期望的漫反射率水平。

    Rear projection screen using birefringent optical film for asymmetric light scattering
    8.
    发明授权
    Rear projection screen using birefringent optical film for asymmetric light scattering 有权
    背投屏使用双折射光学薄膜进行非对称光散射

    公开(公告)号:US06239907B1

    公开(公告)日:2001-05-29

    申请号:US09390086

    申请日:1999-09-03

    IPC分类号: G03B2156

    CPC分类号: G03B21/625

    摘要: A dispersing element for a rear projection screen assembly is sensitive to the polarization of the light passing through the element. In particular, the element disperses light having a first polarization differently from light having a second polarization orthogonal to the first polarization. The dispersing element may be aligned with a polarization axis neither parallel nor perpendicular to the polarization of the light passing through the element. The dispersing element may also be employed with a polarizer to remove unwanted light that propagates through the dispersing element. The dispersing element may also be rotatably mounted relative to a polarized light source so as to vary the angle between the polarization axis of the element and the polarization direction of the light.

    摘要翻译: 用于后投影屏幕组件的分散元件对通过元件的光的偏振敏感。 特别地,所述元件将具有与第一偏振正交的第二偏振光不同于具有第一偏振光的光分散。 分散元件可以与不通过元件的光的偏振平行也不垂直的偏振轴对准。 分散元件也可以与偏振器一起使用以去除传播通过分散元件的不需要的光。 分散元件也可以相对于偏振光源可旋转地安装,以便改变元件的偏振轴与光的偏振方向之间的角度。

    REFLECTIVE POLARIZERS CONTAINING POLYMER FIBERS
    10.
    发明申请
    REFLECTIVE POLARIZERS CONTAINING POLYMER FIBERS 有权
    含有聚合物纤维的反射极化剂

    公开(公告)号:US20080165419A1

    公开(公告)日:2008-07-10

    申请号:US12050243

    申请日:2008-03-18

    IPC分类号: G02B1/08 G02B5/30

    CPC分类号: G02B5/3008

    摘要: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.

    摘要翻译: 偏振器由基本上平行于聚合物基质内的聚合物纤维的排列形成。 聚合物纤维由至少第一和第二聚合物材料形成。 聚合物基质和第一和第二聚合物材料中的至少一种是双折射的,并提供与相邻材料的双折射界面。 光在双折射界面反射和/或散射,对光的偏振具有敏感性。 在一些实施方案中,聚合物纤维形成为复合纤维,其具有布置在填料内以形成复合纤维的多个散射聚合物纤维。 在其它实施方案中,聚合物纤维是多层聚合物纤维。 聚合物纤维可以作为纤维编织的一部分布置在聚合物基质内。