High efficiency LED light source arrangement
    53.
    发明授权
    High efficiency LED light source arrangement 失效
    高效LED光源布置

    公开(公告)号:US07731388B2

    公开(公告)日:2010-06-08

    申请号:US11577056

    申请日:2005-10-10

    IPC分类号: F21V5/00

    摘要: A light source (100) comprises a number of optical components aligned concentrically along an optical axis (115). The optical components include an array of light emitting diodes (101), a dielectric collimator (109) having surfaces configured to provide total internal reflection of light emitted from the array of diodes, and a second stage reflector (113) to further collimate the beam and which also may be based on total internal reflection by a prism structure on the outside.

    摘要翻译: 光源(100)包括沿着光轴(115)同心对准的多个光学部件。 光学部件包括发光二极管阵列(101),具有被配置为提供从二极管阵列发出的光的全内反射的表面的介质准直器(109)和第二级反射器(113),以进一步校准光束 并且也可以基于外部的棱镜结构的全内反射。

    Illumination system
    55.
    发明授权
    Illumination system 有权
    照明系统

    公开(公告)号:US07506998B2

    公开(公告)日:2009-03-24

    申请号:US11575519

    申请日:2005-08-18

    IPC分类号: F21V5/00

    摘要: An illumination system has a plurality (2) of light-collimating sections (12, 12′, 12″) and a light-mixing section (3). The light-collimating sections are arranged substantially parallel to each other along a longitudinal axis (25) of the illumination system. Each of the light-collimating sections is associated with at least one light emitter (R, G, B). Each of the light emitters is being in optical contact with the respective light-collimating section via a dielectric material with a refractive index larger than or equal to 1.3. At a side facing away from the light emitters, the light-collimating sections merge into the light-mixing, the light-collimating sections and the light-mixing section forming one integral part. Light propagation in the light-mixing section is based on total internal reflection and the light-mixing section has a plurality of faces parallel to the longitudinal axis. Preferably, the light-mixing section at a side facing away from the light emitters is provided with a further light-collimating section.

    摘要翻译: 照明系统具有多个(2)光准直部分(12,12',12“)和光混合部分(3)。 光准直部分沿着照明系统的纵向轴线(25)基本上彼此平行地布置。 每个光准直部分与至少一个光发射器(R,G,B)相关联。 每个发光体通过折射率大于或等于1.3的介电材料与相应的光准直部分光学接触。 在远离发光体的一侧,光准直部分合并成光混合,光准直部分和形成一个整体部分的光混合部分。 光混合部分中的光传播基于全内反射,并且光混合部分具有平行于纵轴的多个面。 优选地,在远离发光体的一侧的光混合部分设置有另外的光准直部分。

    Compact lighting system and display device
    56.
    发明授权
    Compact lighting system and display device 失效
    紧凑型照明系统和显示设备

    公开(公告)号:US07172328B2

    公开(公告)日:2007-02-06

    申请号:US10511972

    申请日:2003-03-27

    IPC分类号: F21V7/04

    摘要: A compact backlight system has a light-emitting panel (1) with a front wall (2), a rear wall (3) situated opposite thereto, and furthermore, between the front and the rear wall (2, 3), a translucent input edge surface (4) for coupling light into the light-emitting panel (1). A light source (6, 6′, . . . ) is associated with the input edge surface (4). According to the invention, the rear wall (3) in a first portion (12) of the light-emitting panel (1) is provided with a multiplicity of steps (13, 13′, . . . ), and a second portion (22) of the light-emitting panel (1) widens from the input edge surface (4) in a direction facing the first portion (12). Preferably, a surface (17) of the steps (13, 13′, . . . ) facing the input edge surface (4) makes an angle βav≧5° (with respect to a normal on a bisecting plane (20) bisecting the light-emitting panel (1).

    摘要翻译: 紧凑型背光系统具有发光面板(1),其具有前壁(2),与其相对的后壁(3),此外,在前壁和后壁(2,3)之间,具有半透明输入 边缘表面(4),用于将光耦合到发光面板(1)中。 光源(6,6',...)与输入边缘表面(4)相关联。 根据本发明,发光面板(1)的第一部分(12)中的后壁(3)设置有多个台阶(13,13',...)和第二部分 发光面板(1)的面向第一部分(12)的方向从输入边缘表面(4)变宽。 优选地,面向输入边缘表面(4)的台阶(13,13',...)的表面(17)的角度ββ相对于正常 在将发光面板(1)平分的二等分平面(20)上。

    Illumination system and display device
    57.
    发明授权
    Illumination system and display device 失效
    照明系统和显示设备

    公开(公告)号:US06854854B2

    公开(公告)日:2005-02-15

    申请号:US10117585

    申请日:2002-04-05

    摘要: A backlight system includes at least first and second light-emitting panels (1; 11) having a front wall (2; 12), an opposing rear wall (3; 13) and opposite edge surfaces (4, 14; 5, 15). At least one of the edge surfaces (4; 14) is light-transmitting and associated with a light source (6; 16). Light originating from the light source is diffused in the light-emitting panels and coupled out of the light-emitting panels in the direction of a display device (25), preferably a LCD device. The light source associated with the first light-emitting panel (1) has clusters of red and blue or red and green LEDs. The light source (16) associated with the second light-emitting panel (11) has clusters of blue and green LEDs or only green LEDs.

    摘要翻译: 背光系统包括具有前壁(2; 12),相对的后壁(3; 13)和相对的边缘表面(4,14; 5,15)的至少第一和第二发光面板(1; 11) 。 至少一个边缘表面(4; 14)是透光的并与光源(6; 16)相关联。 来自光源的光在发光面板中扩散,并且在发光面板的显示装置(25)的方向,优选的是LCD装置的耦合出。 与第一发光面板(1)相关联的光源具有红色和蓝色或红色和绿色LED的簇。 与第二发光面板(11)相关联的光源(16)具有蓝色和绿色LED或仅绿色LED的簇。

    Illumination system and display device
    58.
    发明授权
    Illumination system and display device 失效
    照明系统和显示设备

    公开(公告)号:US06648486B2

    公开(公告)日:2003-11-18

    申请号:US09837938

    申请日:2001-04-19

    IPC分类号: F21V800

    摘要: A backlight system comprises at least two light-emitting panels (1; 11) having a front wall (2; 12), an opposing rear wall (3; 13) and opposite edge surfaces (4, 14; 5, 15). At least one of the edge surfaces (4; 14) is light-transmitting and associated with a plurality of light sources (6, 16). Light originating from the light sources (6; 16) is diffused in the panel (1; 11). Sub-surfaces (8, 18) of the rear walls (3, 13) are provided with means for extracting light from the panel (1, 11). In operation, said sub-surfaces (8, 18) project light on areas (9, 19) of an (imaginary) plane (40) which is positioned parallel to the light-emitting panels (1, 11). Said projected areas (9, 19) in the plane (40) are substantially contiguous. Preferably, said sub-surfaces (8, 18) are remote from the light-transmitting edge surfaces (4; 14). Preferably, each of said sub-surfaces (8, 18) forms a single surface covering half the front wall (2, 12) of the light-emitting panel (1, 11). Alternatively, the sub-surfaces encompass a substantial area of the rear walls, the distribution of the means for extracting light from the panel being such that the amount of extracted light changes as a function of the distance to the light-transmitting edge surfaces. Preferably, the light source comprises a plurality of red, green, blue (and amber) LEDs, each preferably having a luminous flux of at least 5 lumen.

    摘要翻译: 背光系统包括具有前壁(2; 12),相对的后壁(3; 13)和相对的边缘表面(4,14; 5,15)的至少两个发光板(1; 11)。 边缘表面(4; 14)中的至少一个是透光的并且与多个光源(6,16)相关联。 来自光源(6; 16)的光在面板(1; 11)中扩散。 后壁(3,13)的副表面(8,18)设置有用于从面板(1,11)提取光的装置。 在操作中,所述子表面(8,18)在平行于发光板(1,11)的位置(9,19)上投影(虚)平面(40)的区域(9,19)。 平面(40)中的所述投影区域(9,19)基本上邻接。 优选地,所述子表面(8,18)远离光透射边缘表面(4; 14)。 优选地,每个所述子表面(8,18)形成覆盖发光面板(1,11)的前壁(2,12)的一半的单个表面。 替代地,子表面包围后壁的实质区域,用于从面板提取光的装置的分布使得提取的光的量根据到透光边缘表面的距离的函数而改变。 优选地,光源包括多个红色,绿色,蓝色(和琥珀色)LED,每个LED优选具有至少5流明的光通量。