Projection apparatus
    4.
    发明授权
    Projection apparatus 失效
    投影仪

    公开(公告)号:US07261418B2

    公开(公告)日:2007-08-28

    申请号:US10987528

    申请日:2004-11-12

    IPC分类号: G03B21/14

    摘要: A projection engine uses a first polarizing beam splitter (PBS) that substantially reflects light incident along a first input direction in a first polarization state and substantially transmits light incident in the first input direction in a second polarization state orthogonal to the first polarization state. The first PBS demonstrates an angularly dependent reflectivity for light in the second polarization state that is asymmetric about the first input direction. At least two imager devices are positioned to receive light reflected and transmitted by the first PBS respectively. The imager devices modulate the incident light with an image. The image light from the imagers is combined and projected.

    摘要翻译: 投影引擎使用第一偏振分束器(PBS),该第一偏振分束器(PBS)基本上反射沿第一输入方向入射的光以第一偏振状态,并以与第一偏振状态正交的第二偏振状态基本上透射沿第一输入方向入射的光。 第一PBS显示出在第二极化状态下对于第一输入方向不对称的光的角度依赖的反射率。 定位至少两个成像器件以接收由第一PBS反射和透射的光。 成像仪设备用图像调制入射光。 来自成像器的图像光被组合和投影。

    Multilayered polymer films with recyclable or recycled layers
    6.
    发明授权
    Multilayered polymer films with recyclable or recycled layers 失效
    具有可回收或再循环层的多层聚合物膜

    公开(公告)号:US06569515B2

    公开(公告)日:2003-05-27

    申请号:US09006456

    申请日:1998-01-13

    IPC分类号: B32B702

    摘要: A multilayered polymer film is formed with a stack of one or more first optical layers, one or more second optical layers, and one or more non-optical layers. These optical and non-optical layers are typically made using polymer materials, such as polyesters. In one embodiment, the non-optical layers are made from a polyester having a composition which corresponds to the average molar composition of the combination of all of the first and second optical layers. Using this formulation, scrap material from the manufacture of multilayered polymer films may be used to generate the non-optical layers in subsequent films. Alternatively, the non-optical layers of a multilayered polymer film are made using scrap material from prior-manufactured multilayered polymer films with the optional addition of other polymer material which may be either new or recycled.

    摘要翻译: 多层聚合物膜由一层或多层第一光学层,一个或多个第二光学层和一个或多个非光学层组成。 这些光学和非光学层通常使用聚合物材料制成,例如聚酯。 在一个实施例中,非光学层由具有对应于所有第一和第二光学层的组合的平均摩尔组成的组成的聚酯制成。 使用该配方,可以使用来自制造多层聚合物膜的废料在随后的膜中产生非光学层。 或者,多层聚合物膜的非光学层使用来自先前制造的多层聚合物膜的废料制备,任选地加入可以是新的或再循环的其它聚合物材料。

    Optical bodies made with a birefringent polymer
    7.
    发明授权
    Optical bodies made with a birefringent polymer 有权
    用双折射聚合物制成的光学体

    公开(公告)号:US06449093B2

    公开(公告)日:2002-09-10

    申请号:US09416462

    申请日:1999-10-12

    IPC分类号: G02B530

    摘要: A optical body has at least two polymeric materials forming a reflective interface for at least one polarization of light. One optical body is a multilayer optical film that includes birefringent first optical layers and second optical layers interleaved with the first optical layers. Each first optical layer is formed using a polymer, such as a copolymer of polyethylene naphthalate. The second optical layers are formed so that they have a lower in-plane birefringence than the first optical layers for 632.8 nm light. Optical bodies can be used as, for example, polarizers and mirrors. The optical bodies can be formed using polymers that provide better index matching and are more easily protected from UV light without coloring the optical body.

    摘要翻译: 光学体具有形成用于至少一种光的偏振的反射界面的至少两种聚合材料。 一个光学体是包含与第一光学层交错的双折射第一光学层和第二光学层的多层光学膜。 每个第一光学层使用聚合物如聚萘二甲酸乙二醇酯的共聚物形成。 第二光学层被形成为使得它们具有比用于632.8nm的光的第一光学层更低的面内双折射。 光学体可用作例如偏振器和反射镜。 可以使用提供更好的折射率匹配的聚合物形成光学体,并且更容易地防止UV光而不着色光学体。