Light guiding layer with integrated mixing and light extracting region
    1.
    发明授权
    Light guiding layer with integrated mixing and light extracting region 失效
    导光层整合混合和光提取区域

    公开(公告)号:US08260100B2

    公开(公告)日:2012-09-04

    申请号:US12515421

    申请日:2007-11-20

    IPC分类号: G02B6/26 G02B6/10

    CPC分类号: G02B6/0018 G02B6/0055

    摘要: A light guiding layer comprises an optical incoupling structure (3) on which light from a light source (7) is incident, said optical incoupling structure (3) having a slanted surface (15) configured to give the light a first directional distribution by reflecting the light in a first general direction, by total internal reflection within the layer, towards a reflecting structure (5). The reflecting structure (5) is configured to give the light a second directional distribution by reflecting the light in a second general direction towards the optical incoupling structure (3), and at least a part of the light reflected in the second general direction is transmitted through the slanted surface (15) of the optical incoupling structure (3). A display unit, a segmented backlight, a luminaire, and a method is also disclosed.

    摘要翻译: 光引导层包括光入射结构(3),光源(7)入射光,所述光耦合结构(3)具有倾斜表面(15),该倾斜表面(15)被配置为通过反射 第一总方向的光通过层内的全内反射朝向反射结构(5)。 反射结构(5)被配置为通过在第二大致方向上将光反射到光学耦合结构(3)来给光提供第二方向分布,并且透射在第二大致方向上反射的光的至少一部分 通过光学耦合结构(3)的倾斜表面(15)。 还公开了显示单元,分段背光,照明设备和方法。

    ILLUMINATION SYSTEM AND DISPLAY DEVICE
    2.
    发明申请
    ILLUMINATION SYSTEM AND DISPLAY DEVICE 有权
    照明系统和显示设备

    公开(公告)号:US20100315832A1

    公开(公告)日:2010-12-16

    申请号:US12446275

    申请日:2007-10-23

    IPC分类号: F21V7/22

    摘要: The invention relates to an illumination system (10, 20, 30) for illuminating a display device (40) and to a display device (40). The illumination system comprises a light-mixing chamber (50) which comprises a light-exit window (52), a rear wall (54) which is situated opposite the light-exit window (52), and edge walls (56, 58) which extend between the light-exit window (52) and the rear wall (54). A surface (55) of the rear wall (54) is substantially specularly reflective for specularly reflecting light impinging on the surface of the rear wall and having a relatively large angle of incidence with respect to an axis perpendicular to the rear wall. The illumination system further comprises a light source (60, 62) and a plurality of light out-coupling elements (70). The light source emits light into the light-mixing chamber in a direction substantially parallel to the light-exit window. The illumination system further comprises an angularly reflective filter (80) applied at the light-exit window. The angularly reflective filter is constituted of a plurality of substantially transparent layers (81, 82, 83, 84), each layer having a substantially uniform thickness. Each set of two adjacent layers (81, 82, 83, 84) of the angularly reflective filter has different refractive indexes.

    摘要翻译: 本发明涉及一种用于照明显示装置(40)和显示装置(40)的照明系统(10,20,30)。 该照明系统包括一个光混合室(50),它包括一个出光窗(52),一个与光出射窗(52)相对的后壁(54)和边缘壁(56,58) 其在光出射窗(52)和后壁(54)之间延伸。 后壁(54)的表面(55)基本上镜面反射,用于镜面反射照射在后壁的表面上的光,并且相对于垂直于后壁的轴线具有相对大的入射角。 照明系统还包括光源(60,62)和多个光出耦合元件(70)。 光源在基本上平行于光出射窗的方向上将光发射到光混合室中。 照明系统还包括在光出射窗处施加的角度反射滤光器(80)。 角度反射滤光片由多个基本上透明的层(81,82,83,84)构成,每层具有基本均匀的厚度。 角度反射滤光器的每组两个相邻层(81,82,83,84)具有不同的折射率。

    Illumination system and display device
    3.
    发明授权
    Illumination system and display device 有权
    照明系统和显示设备

    公开(公告)号:US08128273B2

    公开(公告)日:2012-03-06

    申请号:US12446275

    申请日:2007-10-23

    IPC分类号: F21V7/04

    摘要: An illumination system for illuminating a display device includes a light-mixing chamber having a light-exit window, a rear wall situated opposite the light-exit window, and edge walls which extend between the light-exit window and the rear wall. A surface of the rear wall is substantially specularly reflective for specularly reflecting light impinging on the surface of the rear wall and having a relatively large angle of incidence with respect to an axis perpendicular to the rear wall. The illumination system further includes a light source light out-coupling elements. The light source emits light into the light-mixing chamber in a direction substantially parallel to the light-exit window. The illumination system further includes an angularly reflective filter applied at the light-exit window. The angularly reflective filter includes substantially transparent layers, each layer having a substantially uniform thickness. Each set of two adjacent layers of the angularly reflective filter has different refractive indexes.

    摘要翻译: 用于照明显示装置的照明系统包括具有出光窗的光混合室,与光出射窗相对的后壁,以及在出光窗和后壁之间延伸的边缘壁。 后壁的表面基本上是镜面反射的,用于镜面反射照射在后壁的表面上的光并且相对于垂直于后壁的轴具有相对大的入射角。 照明系统还包括光源光输出耦合元件。 光源在基本上平行于光出射窗的方向上将光发射到光混合室中。 照明系统还包括在光出射窗处施加的角度反射滤光片。 角度反射滤光器包括基本上透明的层,每个层具有基本均匀的厚度。 角度反射滤光片的两组相邻层的每一组具有不同的折射率。

    COLLIMATOR COMPRISING A PRISMATIC LAYER STACK, AND LIGHTING UNIT COMPRISING SUCH A COLLIMATOR
    5.
    发明申请
    COLLIMATOR COMPRISING A PRISMATIC LAYER STACK, AND LIGHTING UNIT COMPRISING SUCH A COLLIMATOR 有权
    包括真实层堆叠的收纳机,以及包括这样一个胶卷机的照明装置

    公开(公告)号:US20130322090A1

    公开(公告)日:2013-12-05

    申请号:US13985056

    申请日:2012-02-21

    IPC分类号: F21V5/00 G02B27/30

    摘要: The invention provides a collimator comprising a first collimator face, a second collimator face, and a stack region. The stack region comprises a first layer having a first prismatically shaped top face with a plurality of 1D arranged first prisms having first prism axes, and a second layer having a second prismatically shaped top face with a plurality of 1D arranged second prisms having second prism axes. The first and second prism axes are in a crossed configuration. In a direction from the first collimator face to the second collimator face, the index of refraction of material upstream of the first prismatically shaped top face is larger than that of material downstream of the first prismatically shaped top face, and the index of refraction of material upstream of the second prismatically shaped top face is larger than that of material downstream of the second prismatically shaped top face.

    摘要翻译: 本发明提供一种准直器,包括第一准直仪面,第二准直器面和堆叠区域。 堆叠区域包括具有第一棱镜状顶面的第一层和具有第一棱镜轴的多个1D布置的第一棱镜,以及具有第二棱镜形状的顶面的第二层,具有多个1D布置的第二棱镜,该第二棱镜具有第二棱镜轴 。 第一和第二棱镜轴处于交叉配置。 在从第一准直器面到第二准直器面的方向上,第一棱镜顶面上游的材料的折射率大于第一棱镜形顶面下游的材料的折射率,材料的折射率 第二棱镜形顶面的上游大于第二棱镜状顶面下游的材料的上游侧。

    BACKLIGHTING SYSTEM AND DISPLAY DEVICE
    7.
    发明申请
    BACKLIGHTING SYSTEM AND DISPLAY DEVICE 有权
    背光系统和显示装置

    公开(公告)号:US20100265275A1

    公开(公告)日:2010-10-21

    申请号:US12742698

    申请日:2008-11-13

    IPC分类号: G09G5/10

    摘要: The invention relates to a backlighting system (10, 11, 12, 13, 14, 15, 16) and to a display device. The backlighting system comprises a plurality of segments (20, 21, 22, 23, 24) for selectively illuminating a predefined area of pixels of a display device. The backlighting system is configured for selectively controlling the intensity and/or color of the light emitted from the segment, each segment comprising a light source (30). The backlighting system (10, 11, 12, 13, 14, 15, 16) further comprises light barriers (40) for limiting the lateralspreading of the light emitted by the light source (30) towards the neighboring segments (20, 21, 22, 23, 24). The light barriers define grid-lines of a grid, and the light source (30) is arranged at a position on the grid-line which at least partially coincides with at least one of the light barriers. The effect of the measures according to the invention is that by positioning the light source of the segment on the same grid-line as the light barriers, the light from the light source spreads on either side of the light barrier towards the neighboring segments. This enables a predefined overlap of the light emitted by the segment towards its neighboring segments without the need for additional thickness of the backlighting system.

    摘要翻译: 本发明涉及背光系统(10,11,12,13,14,15,16)和显示装置。 背光系统包括用于选择性地照亮显示装置的预定区域的像素的多个段(20,21,22,23,24)。 背光系统被配置为选择性地控制从片段发射的光的强度和/或颜色,每个片段包括光源(30)。 背光系统(10,11,12,13,14,15,16)还包括光栅(40),用于限制由光源(30)发射的光朝向邻近片段(20,21,22)的边缘 ,23,24)。 光栅限定栅格的栅格线,并且光源(30)被布置在至少部分地与至少一个光栅重合的网格线上的位置。 根据本发明的措施的效果是通过将光源的光源定位在与光栅相同的格栅线上,来自光源的光在光栅的任一侧向邻近的片段扩散。 这使得能够将段发射的光预定重叠到其相邻的段,而不需要背光系统的额外厚度。

    Light collimator and lighting unit comprising such light collimator

    公开(公告)号:US09411091B2

    公开(公告)日:2016-08-09

    申请号:US13985060

    申请日:2012-02-20

    IPC分类号: F21V8/00

    摘要: The invention provides a light collimator (1) comprising (a) an elongated light waveguide (100) having a waveguide longitudinal axis (101), a waveguide length (wl), a waveguide width (ww) and a waveguide height (wh); the waveguide height (wh) defined by the height between a first waveguide surface (151) and a second waveguide surface (152), the waveguide (100) having an aspect ratio of the waveguide length (wl) and the waveguide width (ww) wl/ww>1; the waveguide comprising a plurality of elongated cavities (110); each cavity (110) comprises a cavity longitudinal axis (111), a cavity length (cl), a cavity width (cw) and a cavity height (ch); each cavity having an aspect ratio of the cavity length (cl) and the cavity width (cw) cl/cw>1, wherein the cavity longitudinal axes (111) of the plurality of cavities (110) are perpendicular to the waveguide longitudinal axis (101); and (b) a diffuse reflective layer (200) adjacent to the second waveguide surface. The invention further provides a lighting unit (2) using such collimator (1).