利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

249 条记录 (耗时 0.051 秒)

    OPTICAL ELEMENT AND COLOR COMBINER
    63.
    发明申请
    OPTICAL ELEMENT AND COLOR COMBINER 有权
    光学元件和颜色组合

    公开(公告)号：US20120008096A1

    公开(公告)日：2012-01-12

    申请号：US12992361

    申请日：2008-12-22

    申请人： Simon Magarill ,  Charles L. Bruzzone ,  Andrew J. Ouderkirk

    发明人： Simon Magarill ,  Charles L. Bruzzone ,  Andrew J. Ouderkirk

    IPC分类号： G02B27/28 ,  G03B21/14

    CPC分类号： G02B27/144 ,  G02B27/283 ,  H04N9/3111 ,  H04N9/3167

    摘要： Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical element includes light recycling stacks, a polarizing beam splitter, and a color-selective stacked retardation polarizing filter. The polarizing beam splitter includes a first reflective polarizer aligned to a first polarization direction. Each light recycling stack includes a second reflective polarizer aligned to the first polarization direction, and a retarder aligned at 45 degrees to the first polarization direction. The color combiner includes partially reflective light sources coupled to the optical element. Un-polarized light having different colors can enter the color combiner through the light recycling stacks, and combined light of a desired polarization state can exit the color combiner. Light having an undesired polarization state can be recycled to the desired polarization state within the color combiner, so that light utilization efficiency is increased. The image projector includes a color combiner coupled to an imaging source and projection elements, so that a first portion of the combined light is directed to the projection element, and a second portion of the combined light is recycled back into the color combiner.

    摘要翻译： 描述使用光学元件的光学元件，组合器以及使用该颜色组合器的图像投影仪。 光学元件包括光循环堆叠，偏振分束器和彩色选择性堆叠延迟偏振滤光器。 偏振分束器包括与第一偏振方向对准的第一反射偏振器。 每个光回收堆叠包括与第一偏振方向对准的第二反射偏振器，和与第一偏振方向成45度对准的延迟器。 颜色组合器包括耦合到光学元件的部分反射光源。 具有不同颜色的非偏振光可以通过光循环堆叠进入合色器，并且所需偏振状态的组合光可以离开颜色组合器。 具有不期望的偏振状态的光可以在彩色组合器内再循环到期望的偏振状态，从而增加光的利用效率。 图像投影仪包括耦合到成像源和投影元件的颜色组合器，使得组合的光的第一部分被引导到投影元件，并且组合的光的第二部分被再循环回到组合器中。

    LIGHT EMITTING DIODE WITH BONDED SEMICONDUCTOR WAVELENGTH CONVERTER
    65.
    发明申请
    LIGHT EMITTING DIODE WITH BONDED SEMICONDUCTOR WAVELENGTH CONVERTER 审中-公开
    具有粘结半导体波长转换器的发光二极管

    公开(公告)号：US20110186877A1

    公开(公告)日：2011-08-04

    申请号：US12995655

    申请日：2009-04-23

    申请人： Michael A. Haase ,  Thomas J. Miller ,  Andrew J. Ouderkirk ,  Catherine A. Leatherdale ,  Tommie W. Kelley

    发明人： Michael A. Haase ,  Thomas J. Miller ,  Andrew J. Ouderkirk ,  Catherine A. Leatherdale ,  Tommie W. Kelley

    IPC分类号： H01L33/50 ,  H01L33/08 ,  H01L33/26 ,  B82Y40/00

    CPC分类号： H01L33/08 ,  H01L25/0756 ,  H01L33/504 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An electroluminescent device emits light at a pump wavelength. A first photoluminescent element covers first and second regions of the electroluminescent device and converts at least some of the pump light from the first region of the electroluminescent device to light at a first wavelength. A second photoluminescent element covers the second region of the electroluminescent device without covering the first region of the electroluminescent device and converts at least some of the light of the pump wavelength to light at a second wavelength different from the first wavelength. In some embodiments the first and second photoluminescent elements convert substantially all of the pump light incident from the first and second regions of the electroluminescent device respectively. An etch-stop layer may separate the first and second photoluminescent elements.

    摘要翻译： 电致发光器件以泵浦波长发光。 第一光致发光元件覆盖电致发光器件的第一和第二区域，并将来自电致发光器件的第一区域的至少一些泵浦光转换成第一波长的光。 第二光致发光元件覆盖电致发光器件的第二区域而不覆盖电致发光器件的第一区域，并将泵波长的至少一些光转换成不同于第一波长的第二波长的光。 在一些实施例中，第一和第二光致发光元件基本上分别从电致发光器件的第一和第二区域入射的所有泵浦光转换。 蚀刻停止层可以分离第一和第二光致发光元件。

    THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS
    67.
    发明申请
    THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS 有权
    具有优点设计特性的中空背光

    公开(公告)号：US20100156953A1

    公开(公告)日：2010-06-24

    申请号：US12600862

    申请日：2008-05-19

    申请人： Timothy J. Nevitt ,  Timothy J. Hebrink ,  Michael F. Weber ,  Rolf W. Biernath ,  David G. Freier ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Charles D. Hoyle ,  Kristopher J. Derks

    发明人： Timothy J. Nevitt ,  Timothy J. Hebrink ,  Michael F. Weber ,  Rolf W. Biernath ,  David G. Freier ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Charles D. Hoyle ,  Kristopher J. Derks

    IPC分类号： G09G5/10

    CPC分类号： F21V7/04 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02B6/0096 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/13362

    摘要： A backlight unit (10) has a hollow cavity (16) instead of employing a light guide. One or more light sources (24a-c), such as LEDs, are arranged to emit light into the cavity, which is formed by a front (12) and a back reflector (14). The backlight is typically of the edge-lit type. The backlight can have a large area, is thin and consists of fewer components than conventional devices. Its design permits light recycling. The unit emits light of a predefined polarisation and can be arranged to have desired horizontal/vertical viewing angle properties. Light is uniformly distributed within the guide and the light output (20b, 2Od) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range 0.0001 to 0.1; and second, the ratio of the SEP to the height of the cavity (H) should be in the range 3 to 10, where the SEP is an average plan view source separation, a special measure of the average spacing of light sources in the plane of the unit. There is also a discussion on the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. A required minimum brightness uniformity (VESA) value to be maintained, when a subset of Madjacent sources is switched off (where M is at least 0.1 N or M>2 or both), is also disclosed. The backlight can be used for a display or for general lighting purposes.

    摘要翻译： 背光单元（10）具有中空腔（16）而不是使用光导。 布置一个或多个光源（24a-c），诸如LED，以将光发射到由前部（12）和后部反射器（14）形成的空腔中。 背光通常是边缘照明型。 背光源可以具有较大的面积，较薄并且由比传统设备更少的组件组成。 其设计允许光回收。 该单元发射预定极化的光，并且可以被布置成具有期望的水平/垂直视角特性。 光均匀分布在引导件内，并且光输出（20b，20d）基本准直。 这样的背光灯占据由两个参数定义的参数空间中的特定区域：首先，输出排放面积与总排放源面积的比值应在0.0001到0.1的范围内; 第二，SEP与空腔高度的比值（H）应在3到10的范围内，其中SEP是平均平面视图源分离，平面中光源的平均间距的特殊测量 的单位。 还有关于所需数量的光源N的讨论，它们在空腔的周边附近的布置以及输出发射区域的形状和尺寸。 还公开了当Madjacent源的子集（其中M为至少0.1N或M> 2或两者）时要维持的所需的最小亮度均匀性（VESA）值。 背光可用于显示器或用于一般照明目的。

    Reflective polarizers containing polymer fibers
    69.
    发明授权
    Reflective polarizers containing polymer fibers 有权
    含聚合物纤维的反光偏振片

    公开(公告)号：US07526164B2

    公开(公告)日：2009-04-28

    申请号：US12050243

    申请日：2008-03-18

    申请人： Andrew J. Ouderkirk ,  Richard C. Allen ,  Patrick R. Fleming ,  Diane North ,  Andrew T. Ruff ,  Kristin L. Thunhorst

    发明人： Andrew J. Ouderkirk ,  Richard C. Allen ,  Patrick R. Fleming ,  Diane North ,  Andrew T. Ruff ,  Kristin L. Thunhorst

    IPC分类号： G02B6/04 ,  G02B6/00 ,  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。