Photovoltaic device
    43.
    发明授权
    Photovoltaic device 有权
    光伏装置

    公开(公告)号:US09123849B2

    公开(公告)日:2015-09-01

    申请号:US12766298

    申请日:2010-04-23

    摘要: Some photovoltaic cells have a front face accepting incoming incident light and opaque gridlines overlying part of the front face, electrically bonded to the face, with upper reflective facets oblique to the plane of the front face and producing outgoing reflected light. An optical interface parallel to and in front of the front face transmits incoming light to the front face and to the gridlines and reflects back towards the front face by total internal reflection at least some of the outgoing reflected light. Some photovoltaic devices have a triple junction photovoltaic cell, a single junction photovoltaic cell, and a reflective surface arranged to distribute incoming light between the cells. The surface may be a frequency-selective mirror that apportions light so when the cells are in series the power produced, and preferably the photocurrent, is greater than if all the light fell on the triple junction cell alone.

    摘要翻译: 一些光伏电池具有接受入射入射光的正面和覆盖前表面的一部分的不透明网格线,电粘结到面部,具有与前表面的平面倾斜的上反射面并产生出射的反射光。 平行于前面和前面的光学接口将入射光透射到前表面和网格线,并通过至少一些输出反射光的全内反射向前表面反射。 一些光伏器件具有三结光伏电池,单结光伏电池和布置成在电池之间分配入射光的反射表面。 表面可以是分配光的频率选择镜,因此当电池串联产生的功率,并且优选地,光电流大于如果所有光都单独落在三重结电池上的情况。

    ETENDUE-CONSERVING ILLUMINATION-OPTICS FOR BACKLIGHTS AND FRONTLIGHTS
    44.
    发明申请
    ETENDUE-CONSERVING ILLUMINATION-OPTICS FOR BACKLIGHTS AND FRONTLIGHTS 有权
    指示灯 - 保护照明 - 背光和镜头的光学

    公开(公告)号:US20090167651A1

    公开(公告)日:2009-07-02

    申请号:US11997143

    申请日:2006-07-28

    IPC分类号: G09G3/34

    摘要: Some embodiments provide luminance-preserving non-imaging backlights that comprise a luminous source emitting light, an input port that receives the light, an injector and a beam-expanding ejector. The injector includes the input port and a larger output port with a profile that expands away from the input port acting via total internal reflection to keep x-y angular width of the source image inversely proportional to its luminance. The injector is defined by a surface of revolution with an axis on the source and a swept profile that is a first portion of an upper half of a CPC tilted by its acceptance angle. The beam-expanding ejector comprising a planar waveguide optically coupled to the output port of the injector. The ejector includes a smooth upper surface, and a reflective lower surface comprising microstructured facets that refract upwardly reflected light into a collimated direction common to the facets.

    摘要翻译: 一些实施例提供了保持亮度的非成像背光,其包括发光的光源,接收光的输入端口,注射器和扩束喷射器。 喷射器包括输入端口和较大的输出端口,其具有通过全内反射而从输入端口扩展的轮廓,以保持源图像的x-y角宽度与其亮度成反比。 喷射器由旋转轴线在源上限定,扫掠轮廓是CPC的上半部分的第一部分倾斜其接收角。 光束扩展喷射器包括光学耦合到喷射器的输出端口的平面波导。 喷射器包括光滑的上表面,以及包括微结构小面的反射下表面,其将向上反射的光折射成小平面共同的准直方向。

    OPTICAL DEVICE FOR LED-BASED LAMP
    45.
    发明申请
    OPTICAL DEVICE FOR LED-BASED LAMP 失效
    用于LED灯的光学装置

    公开(公告)号:US20080123349A1

    公开(公告)日:2008-05-29

    申请号:US11970462

    申请日:2008-01-07

    IPC分类号: F21V5/00

    摘要: An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.

    摘要翻译: 用于将发光二极管(LED)的发光输出耦合到主要为球形图案的光学装置包括接收LED内部的光的转印部分和位于转印部分附近的喷射器,以接收来自转印部分的光并传播 光通常是球形的。 转印部分的基底与LED进行光学对准和/或耦合,使得LED的光进入转印部分。 传送部分可以包括通过全内反射操作的复合椭圆聚光器。 喷射器部分可以具有各种形状,并且在其表面上也可以具有扩散特征。 转移部分在某些实施方式中可以是多边形,V形槽,小面和其它构型。

    Passive electro-optical tracker
    46.
    发明授权
    Passive electro-optical tracker 失效
    被动电光跟踪器

    公开(公告)号:US08355536B2

    公开(公告)日:2013-01-15

    申请号:US12709780

    申请日:2010-02-22

    IPC分类号: G06K9/00

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a speed estimate from their temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Three methods are given to determine the azimuth and range of a projectile, one for clear atmospheric conditions and two for nonhomogeneous atmospheric conditions. The first approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. The second calculates this angle using a different algorithm. The third uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其温度获得速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出三种方法来确定射弹的方位角和范围,一种用于清晰的大气条件,另外两种用于非均匀大气条件。 第一种方法使用射弹图像的相对强度对CCD相机的像素来确定轨迹相对于地面的方位角及其范围。 第二个使用不同的算法来计算该角度。 第三个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    Passive Electro-Optical Tracker
    47.
    发明申请
    Passive Electro-Optical Tracker 失效
    被动电光跟踪器

    公开(公告)号:US20100278387A1

    公开(公告)日:2010-11-04

    申请号:US12709780

    申请日:2010-02-22

    IPC分类号: G06K9/00

    摘要: A passive electro-optical tracker uses a two-band IR intensity ratio to discriminate high-speed projectiles and obtain a speed estimate from their temperature, as well as determining the trajectory back to the source of fire. In an omnidirectional system a hemispheric imager with an MWIR spectrum splitter forms two CCD images of the environment. Three methods are given to determine the azimuth and range of a projectile, one for clear atmospheric conditions and two for nonhomogeneous atmospheric conditions. The first approach uses the relative intensity of the image of the projectile on the pixels of a CCD camera to determine the azimuthal angle of trajectory with respect to the ground, and its range. The second calculates this angle using a different algorithm. The third uses a least squares optimization over multiple frames based on a triangle representation of the smeared image to yield a real-time trajectory estimate.

    摘要翻译: 无源电光跟踪器使用双波段IR强度比来区分高速射弹,并从其温度获得速度估计,以及确定回到火源的轨迹。 在全向系统中,具有MWIR光谱分配器的半球成像器形成环境的两个CCD图像。 给出三种方法来确定射弹的方位角和范围,一种用于清晰的大气条件,另外两种用于非均匀大气条件。 第一种方法使用射弹图像的相对强度对CCD相机的像素来确定轨迹相对于地面的方位角及其范围。 第二个使用不同的算法来计算该角度。 第三个使用基于模糊图像的三角形表示的多个帧的最小二乘优化来产生实时轨迹估计。

    Optical transformer for small light sources

    公开(公告)号:US06646813B2

    公开(公告)日:2003-11-11

    申请号:US10028662

    申请日:2001-12-21

    IPC分类号: G02B2730

    摘要: Optical transformer devices described herein provide a variety of area output patterns from a small light source (21). A light ejector (24) is described for transversely ejecting light injected by a light source, including a plurality of partially reflective interfaces (41) arranged along a central axis (28), the interfaces arranged so that light injected by the light source travels through each of the interfaces, the reflected light providing an area light output of the light reflected. The interfaces may utilize Fresnel reflectance or may comprise metallic or dielectric coatings. A variety of embodiments are described, such as a cylindrical configuration, a rectangular block configuration, or an N-sided polygonal configuration. In some embodiments a turning reflector (132) and polarization retarder (131) are provided to reverse the direction of light and rotate polarization on the side opposite the light source. In one embodiment, a stripe ejector (470) can be used to illuminate an LCD display.

    REMOTE PHOSPHOR LIGHT ENGINES AND LAMPS
    49.
    发明申请
    REMOTE PHOSPHOR LIGHT ENGINES AND LAMPS 有权
    远程荧光灯和光源

    公开(公告)号:US20110096552A1

    公开(公告)日:2011-04-28

    申请号:US12910532

    申请日:2010-10-22

    IPC分类号: F21V7/00

    摘要: A light engine has a pillar with first and second ends; a circuit board on the first end of the pillar, a light source mounted on the circuit board encircling the pillar and facing towards the second end of the pillar, and a surface extending from the second end of the pillar, that surface and the exterior of the pillar between that surface and the circuit board being coated with a reflective remote phosphor that is excited by light from the light source. The light engine may be used in a light bulb, with a frosted globe enclosing the circuit board and mounted round the outer edge of the phosphor-coated surface, and an Edison screw or other standard base connected to the second end of the pillar.

    摘要翻译: 轻型发动机具有第一和第二端的支柱; 在柱的第一端上的电路板,安装在电路板上的环绕柱并朝向柱的第二端的光源,以及从柱的第二端延伸的表面,该表面和外部 该表面和电路板之间的支柱涂覆有由来自光源的光激发的反射型远程荧光粉。 光引擎可以用在灯泡中,其上装有电路板的磨砂球体并且安装在荧光粉涂覆表面的外边缘周围,以及连接到柱的第二端的爱迪生螺丝或其它标准基座。

    Wideband dichroic-filter design for LED-phosphor beam-combining
    50.
    发明申请
    Wideband dichroic-filter design for LED-phosphor beam-combining 有权
    用于LED - 磷光体束组合的宽带二向色滤光片设计

    公开(公告)号:US20090116114A1

    公开(公告)日:2009-05-07

    申请号:US11982492

    申请日:2007-11-02

    申请人: Waqidi Falicoff

    发明人: Waqidi Falicoff

    IPC分类号: G02B5/28

    CPC分类号: G02B5/285

    摘要: A general method is disclosed of designing two-component dichroic short-pass filters operable for incidence angle distributions over the 0-30° range, and specific preferred embodiments are listed. The method is based on computer optimization algorithms for an N-layer design, specifically the N-dimensional conjugate-gradient minimization of a merit function based on difference from a target transmission spectrum, as well as subsequent cycles of needle synthesis for increasing N. A key feature of the method is the initial filter design, upon which the algorithm proceeds to iterate successive design candidates with smaller merit functions. This initial design, with high-index material H and low-index L, is (0.75 H, 0.5 L, 0.75 H)̂m, denoting m (20-30) repetitions of a three-layer motif, giving rise to a filter with N=2m+1.

    摘要翻译: 公开了一种设计用于0-30°范围内的入射角分布的双组分二向色短路滤光器的通用方法,并且列出了具体的优选实施例。 该方法基于用于N层设计的计算机优化算法,特别是基于与目标透射光谱的差异的优点函数的N维共轭 - 梯度最小化,以及用于增加N的针合成的随后循环。 该方法的关键特征是初始滤波器设计,算法继续迭代具有较小优值函数的连续设计候选。 具有高折射率材料H和低折射率L的初始设计是(0.75H,0.5L,0.75H)m,表示三层图案的m(20-30)重复,产生具有 N = 2m + 1。