THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS
    1.
    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

    IPC分类号: G09G5/10

    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。

    COLLIMATING LIGHT INJECTORS FOR EDGE-LIT BACKLIGHTS
    8.
    发明申请
    COLLIMATING LIGHT INJECTORS FOR EDGE-LIT BACKLIGHTS 有权
    尾灯注射器

    公开(公告)号:US20100165621A1

    公开(公告)日:2010-07-01

    申请号:US12600898

    申请日:2008-05-19

    IPC分类号: F21V1/00 F21V7/00

    摘要: Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (50) and back (52) reflector, are described. In some embodiments, the device includes a light source (59) disposed proximate the back reflector, and first (42) and second (44) reflecting structures. The first reflecting structure includes an inner reflective surface (41b) at least a portion of which is inclined to form a wedge with the back reflector. The wedge partially collimates and directs light from the light source generally away from the recycling cavity. The second reflecting structure receives light exiting the wedge and redirects such light into an injection beam directed into the recycling cavity.

    摘要翻译: 描述了其功能是将光注入背光,特别是掺入由前(50)和后(52)反射器形成的再循环腔的背光)的照明装置。 在一些实施例中,该装置包括靠近后反射器设置的光源(59),以及第一(42)和第二(44)反射结构。 第一反射结构包括内部反射表面(41b),其至少一部分倾斜以与后部反射器形成楔形。 楔形部分准直并引导来自光源的光通常远离再循环腔。 第二反射结构接收离开楔形物的光并且将这种光重定向到被引导回到再循环腔中的注射束。

    LIGHTING ASSEMBLIES AND SYSTEMS
    9.
    发明申请
    LIGHTING ASSEMBLIES AND SYSTEMS 有权
    照明组件和系统

    公开(公告)号:US20100271819A1

    公开(公告)日:2010-10-28

    申请号:US12620946

    申请日:2009-11-18

    IPC分类号: F21V1/00 F21V29/00

    摘要: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies. The lighting assemblies and systems of the present disclosure can be used in, for example, a street light, a backlight (including, for example, a sun-coupled backlight), a wall wash light, a billboard light, a parking ramp light, a high bay light, a parking lot light, a signage lit sign (also referred to as an electric sign), static signage (including, for example, sun-coupled static signage), illuminated signage, and other lighting applications.

    摘要翻译: 本发明涉及使用LED提供照明的照明或照明组件和系统。 一方面,本公开提供了一种照明组件,包括:发光的多个发光二极管; 引导由发光二极管发射的光的光学系统,位于发光二极管附近的光学系统; 以及包括两相冷却系统的冷却翅片,所述冷却翅片邻近所述发光二极管定位,使得所述两相冷却系统从所述发光二极管中除去热量。 在另一方面,本公开提供了一种包括多个照明组件的照明系统。 本公开的照明组件和系统可以用于例如路灯,背光(包括例如太阳耦合背光),洗墙灯,广告牌灯,停车斜坡灯, 一个高耸的灯光,一个停车场的灯光,一个标志性的灯光标志(也称为电气标志),静电标牌(包括例如太阳光静电标牌),照明标牌和其他照明应用。

    Lighting assemblies and systems
    10.
    发明授权
    Lighting assemblies and systems 有权
    照明组件和系统

    公开(公告)号:US08192048B2

    公开(公告)日:2012-06-05

    申请号:US12620946

    申请日:2009-11-18

    IPC分类号: F21V1/00

    摘要: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies. The lighting assemblies and systems of the present disclosure can be used in, for example, a street light, a backlight (including, for example, a sun-coupled backlight), a wall wash light, a billboard light, a parking ramp light, a high bay light, a parking lot light, a signage lit sign (also referred to as an electric sign), static signage (including, for example, sun-coupled static signage), illuminated signage, and other lighting applications.

    摘要翻译: 本公开涉及使用LED提供照明的照明或照明组件和系统。 一方面,本公开提供了一种照明组件,包括:发光的多个发光二极管; 引导由发光二极管发射的光的光学系统,位于发光二极管附近的光学系统; 以及包括两相冷却系统的冷却翅片,所述冷却翅片邻近所述发光二极管定位,使得所述两相冷却系统从所述发光二极管中除去热量。 在另一方面,本公开提供了一种包括多个照明组件的照明系统。 本公开的照明组件和系统可以用于例如路灯,背光(包括例如太阳耦合背光),洗墙灯,广告牌灯,停车斜坡灯, 一个高耸的灯光,一个停车场的灯光,一个标志性的灯光标志(也称为电气标志),静电标牌(包括例如太阳光静电标牌),照明标牌和其他照明应用。