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249 条记录 (耗时 0.055 秒)

    Optical film with sharpened bandedge
    82.
    发明授权
    Optical film with sharpened bandedge 有权
    带有锐化带的光学薄膜

    公开(公告)号：US06967778B1

    公开(公告)日：2005-11-22

    申请号：US09634319

    申请日：2000-08-09

    申请人： John A. Wheatley ,  Michael F. Weber ,  Andrew J. Ouderkirk

    发明人： John A. Wheatley ,  Michael F. Weber ,  Andrew J. Ouderkirk

    IPC分类号： G02B1/10 ,  G02B5/28

    CPC分类号： G02B5/28

    摘要： The present invention provides reflective films and other optical bodies which exhibit sharp bandedges on one or both sides of the main reflection bands. The optical bodies comprise multilayer stacks M1 and M2, each having first order reflections in a desired part of the spectrum and comprising optical repeating units R1 and R2, respectively. At least one of the optical repeating units R1 and R2 varies monotonically in optical thickness along the thickness of the associated multilayer stack.

    摘要翻译： 本发明提供了在主反射带的一侧或两侧呈现尖锐带状的反射膜和其它光学体。 光学体包括多层叠层M 1和M 2，它们各自在光谱的所需部分具有一级反射，并且包含光学重复单元R 1， SUB＆gt;和R＆lt; 2＆gt ;. 光学重复单元R 1和R 2 2中的至少一个沿着相关联的多层堆叠的厚度在光学厚度上单调变化。

    Reflective polarizers having extended red band edge for reduced off axis color
    84.
    发明授权
    Reflective polarizers having extended red band edge for reduced off axis color 有权
    反射偏振器具有延长的红色带边缘以减少离轴颜色

    公开(公告)号：US06449092B1

    公开(公告)日：2002-09-10

    申请号：US09566181

    申请日：2000-05-05

    申请人： Michael F. Weber ,  Brian D. Cull ,  Kevin M. Hoffman ,  Andrew J. Ouderkirk

    发明人： Michael F. Weber ,  Brian D. Cull ,  Kevin M. Hoffman ,  Andrew J. Ouderkirk

    IPC分类号： G02B530

    CPC分类号： G02B27/283 ,  G02B5/305 ,  G02F1/13362

    摘要： Reflective polarizers, which transmit one polarization and reflect the other polarization, have an extended red band edge in the off-axis transmission spectrum to control off axis color (OAC) hue. To control the OAC hue, the red band edge of the off-axis transmission spectrum, or OAC spectrum, is shifted beyond the boundary for red light, or to at least 600 nm. Even more preferably, the OAC spectrum is extended further into the red than any red emission peak of an associated lamp providing light into a system in which the reflective polarizer is used. The concept applies equally well to any type of reflective polarizer, such as multilayer reflective polarizers, cholesteric reflective polarizers, and the like. The resulting reflective polarizers are very useful for many different applications, such as liquid crystal displays.

    摘要翻译： 透射一个极化并反射另一个极化的反射偏振器在离轴透射光谱中具有扩展的红带边缘，以控制离轴颜色（OAC）色调。 为了控制OAC色调，离轴透射光谱或OAC光谱的红带边缘偏移超过红光的边界，或至少600nm。 甚至更优选地，将OAC光谱进一步扩展到红色，比将相关灯的红色发射峰提供给使用反射型偏振器的系统中的光。 该概念同样适用于任何类型的反射偏振器，例如多层反射偏振器，胆甾型反射偏振器等。 所得到的反射偏振器对于诸如液晶显示器的许多不同应用是非常有用的。

    THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS
    85.
    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。

    Phosphor based illumination system having a plurality of light guides and an interference reflector
    89.
    发明授权
    Phosphor based illumination system having a plurality of light guides and an interference reflector 有权
    基于荧光体的照明系统具有多个光导和干涉反射器

    公开(公告)号：US07204631B2

    公开(公告)日：2007-04-17

    申请号：US10884710

    申请日：2004-06-30

    申请人： Michael F. Weber ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Kenneth A. Epstein ,  James E. Watson

    发明人： Michael F. Weber ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Kenneth A. Epstein ,  James E. Watson

    IPC分类号： F21V7/04

    CPC分类号： G02B6/0068 ,  G02B6/0008 ,  G02B6/0026 ,  G02B6/0028 ,  G02B6/0066

    摘要： An illumination system including a light source, a light guide including an output surface, emissive material positioned to receive light from the output surface of the light guide, and an interference reflector positioned such that the emissive material is between the output surface of the light guide and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

    摘要翻译： 一种照明系统，包括光源，包括输出表面的光导，定位成接收来自光导的输出表面的光的发射材料以及定位成使得发光材料位于光导的输出表面之间的干涉反射器 并且公开了干涉反射器。 光源发射具有第一光学特性的光。 当用具有第一光学特性的光照射时，发光材料发射具有第二光学特性的光。 干涉反射器基本透射具有第二光学特性的光，并基本上反射具有第一光学特性的光。

    Phosphor based light sources utilizing total internal reflection
    90.
    发明授权
    Phosphor based light sources utilizing total internal reflection 有权
    使用全内反射的基于荧光粉的光源

    公开(公告)号：US07157839B2

    公开(公告)日：2007-01-02

    申请号：US10762724

    申请日：2004-01-20

    申请人： Andrew J. Ouderkirk ,  James E. Watson ,  Michael F. Weber

    发明人： Andrew J. Ouderkirk ,  James E. Watson ,  Michael F. Weber

    IPC分类号： H01J5/16 ,  H01J61/40

    CPC分类号： H01L33/505 ,  H01L33/44 ,  H01L33/46 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/12041 ,  Y10S362/80 ,  H01L2924/00014

    摘要： A LED package including an LED that emits excitation light at an excitation light wavelength and a layer of phosphor material positioned to receive the excitation light and having a first index of refraction at the excitation light wavelength. The phosphor material emits visible light at a visible light wavelength when illuminated with the excitation light. An interference reflector is positioned adjacent to the layer of phosphor material and a TIR promoting layer is in contact with the layer of phosphor material. The TIR promoting layer has a second index of refraction at the excitation light wavelength that is less than the first index of refraction at the excitation light wavelength.

    摘要翻译： 一种LED封装，包括发射激发光波长的激发光的LED和定位成接收激发光并且在激发光波长处具有第一折射率的磷光体材料层。 当用激发光照射时，荧光体材料以可见光波长发射可见光。 干涉反射器位于磷光体材料层附近并且TIR促进层与磷光体材料层接触。 TIR促进层在激发光波长处具有小于激发光波长处的第一折射率的第二折射率。