PROCESS FOR MANUFACTURING POLYMERIC OPTICAL FILM
    3.
    发明申请
    PROCESS FOR MANUFACTURING POLYMERIC OPTICAL FILM 审中-公开
    制造聚合物薄膜的方法

    公开(公告)号:US20060272778A1

    公开(公告)日:2006-12-07

    申请号:US11464516

    申请日:2006-08-15

    IPC分类号: B32B37/00

    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。

    Optical bodies and methods for making optical bodies
    6.
    发明申请
    Optical bodies and methods for making optical bodies 审中-公开
    光学体及其制造方法

    公开(公告)号:US20060093809A1

    公开(公告)日:2006-05-04

    申请号:US10977211

    申请日:2004-10-29

    IPC分类号: B32B5/16

    摘要: Optical bodies are disclosed that include an optical film and at least one rough strippable skin layer operatively connected to a surface of the optical film. The at least one rough strippable skin layer can include a continuous phase and a disperse phase. Alternatively, the at least one rough strippable skin layer can include a first polymer, a second polymer different from the first polymer and an additional material that is substantially immiscible in at least one of the first and second polymers. In some exemplary embodiments, a surface of the at least one rough strippable skin layer adjacent to the optical film comprises a plurality of protrusions and the adjacent surface of the optical film comprises a plurality of asymmetric depressions substantially corresponding to said plurality of protrusions. In addition, optical bodies are disclosed that include an optical film having a surface with asymmetric depressions, the asymmetric depressions having a major dimension substantially collinear with a major axis of the optical film and a minor direction substantially collinear with a minor axis of the optical film. Methods of making such exemplary optical bodies are also disclosed.

    摘要翻译: 公开了包括光学膜和可操作地连接到光学膜的表面的至少一个粗糙可剥离表皮层的光学体。 至少一个粗糙的可剥离表皮层可以包括连续相和分散相。 或者,至少一个粗糙的可剥离表皮层可以包括第一聚合物,不同于第一聚合物的第二聚合物和在第一和第二聚合物中的至少一种中基本上不混溶的附加材料。 在一些示例性实施例中,与光学膜相邻的至少一个粗糙可剥离表皮层的表面包括多个突起,并且光学膜的相邻表面包括基本对应于所述多个突起的多个不对称凹部。 此外,公开了包括具有具有不对称凹陷的表面的光学膜的光学体,所述非对称凹陷具有与光学膜的长轴基本共线的主要尺寸和与光学膜的短轴基本共线的次要方向 。 还公开了制造这种示例性光学体的方法。

    Polarizing beam splitter
    10.
    发明申请
    Polarizing beam splitter 有权
    极化分束器

    公开(公告)号:US20050001983A1

    公开(公告)日:2005-01-06

    申请号:US10637164

    申请日:2003-08-08

    CPC分类号: G02B27/283 Y10T428/24942

    摘要: The present invention provides a unique polarizing beam splitter (PBS) that is suitable for use in projection systems and displays. The PBS contains at least one prism having at least one major surface and having a refractive index of at least about 1.6 and a birefringent film disposed on the major surface of the prism. The birefringent film is a multi-layer film having at layers of at least a first material and a second material. After uniaxial stretching, the film exhibits a refractive index difference of less than about 0.15 units in the stretched direction.

    摘要翻译: 本发明提供了适用于投影系统和显示器的独特的偏振分束器(PBS)。 PBS包含至少一个具有至少一个主表面并具有至少约1.6的折射率的棱镜和设置在棱镜的主表面上的双折射膜。 双折射膜是具有至少第一材料和第二材料层的多层膜。 在单轴拉伸之后,膜在拉伸方向上的折射率差小于约0.15单位。