Free-Form Catadioptric Illumination Lens
    1.
    发明申请
    Free-Form Catadioptric Illumination Lens 有权
    自由形反射折射照明镜

    公开(公告)号:US20120268949A1

    公开(公告)日:2012-10-25

    申请号:US13452751

    申请日:2012-04-20

    申请人: William A. Parkyn

    发明人: William A. Parkyn

    IPC分类号: F21V13/04

    摘要: An illumination lens for hemispherically emitting light emitting diodes is disclosed that produces a square illumination pattern too narrow for a refractive lens to produce by itself. The lens is freeform in that it departs from circular symmetry in order to produce a square pattern. It is catadioptric in that it comprises a central refractive lens with a square output of desired angular width and a surrounding TIR prism that produces the same square output, overlapping the first for better uniformity of the sum. The central lens and circumambient TIR prism are joined in a monolithic configuration suitable for injection molding. Vector equations are disclosed for generating the shapes of the five optically active surfaces of the invention, two internal surfaces forming a central cavity surrounding the LED and three external surfaces, all five departing from circular symmetry.

    摘要翻译: 公开了一种用于半球发射发光二极管的照明透镜,其产生对于折射透镜本身而产生的太窄的方形照明图案。 透镜是自由的,因为它偏离圆形对称,以产生正方形图案。 它是反折射的,因为它包括具有所需角度宽度的正方形输出的中心折射透镜和产生相同平方输出的周围TIR棱镜,与第一平面输出重叠以获得更高的总和均匀度。 中心透镜和圆周TIR棱镜以适合于注射成型的整体结构连接。 公开了用于产生本发明的五个光学活性表面的形状的矢量方程,两个内表面形成围绕LED的中心腔和三个外表面,所有这五个离开圆形对称。

    Neon-tube substitute using light-emitting diodes
    2.
    发明授权
    Neon-tube substitute using light-emitting diodes 有权
    使用发光二极管的氖管替代品

    公开(公告)号:US08256918B2

    公开(公告)日:2012-09-04

    申请号:US12682680

    申请日:2008-11-13

    IPC分类号: F21V33/00

    摘要: A tubular luminaire efficiently utilizes the light of a line of high-brightness unlensed LEDs to reproduce the homogeneous appearance of a neon tube. The transparent tube has an annular cross-section suitable for cost-effective manufacturing by extrusion. The LEDs are mounted in a line on a circuit board that can be positioned either inside or outside the tube. Their light shines into a cylindrical groove, thereby entering within the material of the tube. Above the groove, the wall of the tube has a spiral shape that reflects the light laterally so that it stays within the annular tube for a considerable path length. Volume scattering by a low density of scattering inclusions causes the light to escape as a homogenous glow. Alternatively, mild surface scattering from the inside surface can be used.

    摘要翻译: 管状灯具有效地利用高亮度未发光的LED线的光再现氖管的均匀外观。 透明管具有适于通过挤压成本有效制造的环形横截面。 LED安装在可以位于管内部或外部的电路板上的管线中。 它们的光照射成圆柱形凹槽,从而进入管的材料内。 在槽的上方,管的壁具有螺旋形状,其横向地反射光,使得其保持在环形管内相当长的路径长度。 通过低密度散射夹杂物的体积散射导致光作为均匀发光而逸出。 或者,可以使用来自内表面的温和表面散射。

    Linear lenses for LEDs
    3.
    发明授权
    Linear lenses for LEDs 失效
    LED线性透镜

    公开(公告)号:US07731395B2

    公开(公告)日:2010-06-08

    申请号:US11493368

    申请日:2006-07-26

    IPC分类号: F21V5/00 F21V33/00

    摘要: Various embodiments described herein comprise array of light emitting diodes and a cylindrical lens having front and rear curved surfaces. The cylindrical lens is disposed to receive light from the light emitting diodes and to redistribute the light. The cylindrical lens is located no more than about 8 inches distance from the front an illumination target, which may for example, comprise products on shelves in a refrigerator. The front and rear surfaces of the cylindrical lens are shaped to provide substantially uniform illumination across the target.

    摘要翻译: 本文描述的各种实施例包括发光二极管阵列和具有前后曲面的柱面透镜。 柱面透镜设置成从发光二极管接收光并重新分布光。 柱面透镜距离照明目标的前方距离不超过约8英寸,照明目标可以例如包括在冰箱中的货架上的产品。 圆柱形透镜的前表面和后表面成形为在目标上提供基本均匀的照明。

    Light extraction from LEDs with light pipes
    6.
    发明授权
    Light extraction from LEDs with light pipes 有权
    用光管从LED中提取光

    公开(公告)号:US06560038B1

    公开(公告)日:2003-05-06

    申请号:US10007949

    申请日:2001-12-10

    IPC分类号: G02B1700

    摘要: A non-imaging optical coupler that is a figure of revolution combining a light-transmitting body defining a recessed input cavity, a transparent droplet-shaped encapsulant of a light-emitting diode, or array of diodes in the cavity, the body having a curved side wall shaped to totally internally reflect all the light emitted from the LED and encapsulant, traveling toward the side wall, within a predetermined distance from the diode or center of array, the body having a cylindrical transition section extending from a curved side wall and forwardly, and a planar exit face at the forward end of the body, transverse to the central axis of the figure of revolution.

    摘要翻译: 一种非成像光学耦合器,其是组合限定凹入的输入腔的透光体,发光二极管的透明液滴形密封剂或空腔中的二极管阵列的旋转图,所述主体具有弯曲的 侧壁成形为在与二极管或阵列中心预定距离内完全内部反射从LED和密封剂发射的所有光,朝向侧壁行进,该主体具有从弯曲侧壁延伸的向前的圆柱形过渡部分 以及在身体的前端处的横向于旋转图形的中心轴线的平面出射面。

    Repair in holes and cracks in clay sewer pipe
    8.
    发明授权
    Repair in holes and cracks in clay sewer pipe 失效
    修补粘土下水道管孔和裂缝

    公开(公告)号:US4602659A

    公开(公告)日:1986-07-29

    申请号:US600893

    申请日:1984-04-16

    摘要: The repair of a sewer line having a fracture, and employing a liner sleeve and an elastomer sleeve extending about the line sleeve, and a filler slurry, includes:(a) installing the liner sleeve and the elastomer sleeve endwise in the sewer line to locate the two sleeves in bridging relation with the fracture, and(b) displacing slurry into a space formed between the two sleeves to cause the elastomeric sleeve to expand and seal against the sewer line in bridging relation with the fracture.

    摘要翻译: 具有断裂的下水道线的修理以及使用衬套和围绕线套筒延伸的弹性体套管以及填料浆料的修理包括:(a)将衬套和弹性体套筒沿端部安装在下水道中以定位 两个与该断裂处于桥接关系的套筒,以及(b)将浆料置于形成于两个套筒之间的空间中,以使弹性体套筒膨胀并且与该断裂处于桥接关系中的下水道密封。

    Solar collector having tank and glazing construction
    9.
    发明授权
    Solar collector having tank and glazing construction 失效
    太阳能集热器有油罐和玻璃窗

    公开(公告)号:US4520795A

    公开(公告)日:1985-06-04

    申请号:US559051

    申请日:1983-12-09

    摘要: Apparatus for integral collection and storage of solar thermal energy, comprises(a) a relatively large storage vessel having side and end walls that absorb solar energy in order to heat its contents;(b) a translucent enclosure surrounding the large storage vessel, for suppression of convective heat losses;(c) structure on the vessel for the suppression of thermal radiation heat losses from said large storage vessel;the apparatus providing a ratio of thermal mass, as measured in BTU per degree Fahrenheit, to heat-loss coefficient, as measured in BTU per degree Fahrenheit per hour, exceeding 36 hours.

    摘要翻译: 用于整体收集和储存太阳能热能的装置包括(a)相对较大的储存容器,其具有吸收太阳能以便加热其内容物的侧壁和端壁; (b)围绕大型储存容器的半透明外壳,用于抑制对流热损失; (c)船上的结构,用于抑制来自所述大型储存容器的热辐射热损失; 该装置提供按照华氏温度BTU测量的热损失系数,以每小时华氏温度BTU测量的热损失系数超过36小时。