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142 条记录 (耗时 0.024 秒)

    White LED for backlight with phosphor plates
    71.
    发明申请
    White LED for backlight with phosphor plates 有权
    白色LED用于带荧光板的背光

    公开(公告)号：US20070215890A1

    公开(公告)日：2007-09-20

    申请号：US11378812

    申请日：2006-03-17

    申请人： Gerard Harbers ,  Serge Bierhuizen ,  Mark Pugh

    发明人： Gerard Harbers ,  Serge Bierhuizen ,  Mark Pugh

    IPC分类号： H01L33/00

    CPC分类号： H01L33/505 ,  C09K11/7774 ,  G02F1/133603 ,  G02F2001/133614 ,  H01L33/504 ,  H01L2224/16225 ,  H01L2933/0041 ,  Y02B20/181

    摘要： A white light LED for use in backlighting or otherwise illuminating an LCD is described where the white light LED comprises a blue LED over which is affixed a preformed red phosphor platelet and a preformed green phosphor platelet. In one embodiment, to form a platelet, a controlled amount of phosphor powder is placed in a mold and heated under pressure to sinter the grains together. The platelet can be made very smooth on all surfaces. A UV LED may also be used in conjunction with red, green, and blue phosphor plates. The LED dies vary in color and brightness and are binned in accordance with their light output characteristics. Phosphor plates with different characteristics are matched to the binned LEDs to create white light LEDs with a consistent white point for use in backlights for liquid crystal displays.

    摘要翻译： 描述了用于背光或以其他方式照明LCD的白光LED，其中白光LED包括蓝色LED，其上附着预先形成的红色荧光体片和预制绿色荧光体片。 在一个实施方案中，为了形成血小板，将受控量的荧光体粉末放置在模具中并在压力下加热以将颗粒烧结在一起。 血小板可以在所有表​​面上非常光滑。 UV LED也可以与红色，绿色和蓝色荧光体板一起使用。 LED管芯的颜色和亮度不同，并根据其光输出特性进行分样。 具有不同特性的荧光板与分箱LED匹配，以创建白光LED，并具有用于液晶显示器背光源的一致白点。

    Illumination system with optical concentrator and wavelength converting element
    72.
    发明申请
    Illumination system with optical concentrator and wavelength converting element 失效
    具有光集中器和波长转换元件的照明系统

    公开(公告)号：US20070081336A1

    公开(公告)日：2007-04-12

    申请号：US11248945

    申请日：2005-10-11

    申请人： Serge Bierhuizen ,  Gerard Harbers

    发明人： Serge Bierhuizen ,  Gerard Harbers

    IPC分类号： F21V9/00

    CPC分类号： H04N9/315

    摘要： A light emitting device includes a light emitting element, an optical concentrator, such as a compound parabolic concentrator, a dichroic filter between the light emitting element and the optical concentrator and a wavelength converting material, such as a phosphor. The optical concentrator receives light from the light emitting element, via the dichroic filter, and emits the light from an exit surface, which is smaller than the entrance surface. The optical concentrator may be manufactured from a material with a high refractive index, such as sapphire. The wavelength converting material is, e.g., disposed over the exit surface. The radiance of the wavelength converting material is increased by pumping the wavelength converting material through a high index of refraction material and outputting the converted light into a low refractive index medium, such as air.

    摘要翻译： 发光器件包括发光元件，诸如复合抛物面聚光器的光聚焦器，发光元件和光集中器之间的二向色滤光器以及诸如荧光体的波长转换材料。 光集中器通过二向色滤光器从发光元件接收光，并从小于入射面的出射面发射光。 光聚焦器可以由具有高折射率的材料制成，例如蓝宝石。 波长转换材料例如设置在出射表面上。 波长转换材料的辐射度通过泵送波长转换材料通过高折射率材料并将转换的光输出到诸如空气的低折射率介质中来增加。

    Light panel with enlarged viewing window
    73.
    发明授权
    Light panel with enlarged viewing window 失效
    灯面板放大观景窗

    公开(公告)号：US06988813B2

    公开(公告)日：2006-01-24

    申请号：US10227228

    申请日：2002-08-23

    申请人： Christoph Gerard August Hoelen ,  Gerard Harbers

    发明人： Christoph Gerard August Hoelen ,  Gerard Harbers

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0038 ,  G02B6/0068

    摘要： The invention relates to a light panel (12), comprising: a light guide having a front surface defining a viewing window (11), a back surface and sides (3, 4) between the front and back surfaces; and a patterned array of light sources (8, 9, 10) of at least two types, which types are distinguished by the color of light emitted by the light sources of said at least two types, said array being arranged along at least one of the sides. Each light source generates in use a divergent light beam of a color into the panel to, in combination, color the panel. Further, the array comprises complementary sub-arrays (8, 9, 8, 9 & 9, 10, 9, 10) of light sources along at least two of the sides. Since the sub-arrays are complementary, in that by all light sources of the different types the same amount of light is emitted into the light guide as in prior art single array configurations (the same number of light sources), but from two or more sides while maintaining the general light source pitch, the average distance or pitch between light sources of one of the types, can be decreased. Therewith also the required distance or colors for color mixing is lessened and the viewing window is enlarged.

    摘要翻译： 本发明涉及一种光板（12），包括：具有限定观察窗（11）的前表面，前表面和后表面之间的背面和侧面（3,4）的光导; 以及至少两种类型的光源（8,9,10）的图案化阵列，这些类型由所述至少两种类型的光源发出的光的颜色区分，所述阵列沿着至少一种 两边。 每个光源在使用中产生颜色的发散光束到面板中，以组合地对面板进行着色。 此外，阵列包括沿着至少两个侧面的光源的互补子阵列（8,9,8,9和9,10,9,10）。 由于子阵列是互补的，因为通过不同类型的所有光源，与现有技术的单阵列配置（相同数量的光源）一样，将相同量的光发射到光导中，而是从两个或更多个 同时保持一般的光源间距，可以减少其中一种类型的光源之间的平均距离或间距。 因此，还需要所需的颜色混合距离或颜色，并且观察窗口被放大。

    Illumination system with LEDs
    74.
    发明申请
    Illumination system with LEDs 审中-公开
    LED照明系统

    公开(公告)号：US20050179041A1

    公开(公告)日：2005-08-18

    申请号：US10782248

    申请日：2004-02-18

    申请人： Gerard Harbers ,  Matthijs Keuper ,  Daniel Steigerwald

    发明人： Gerard Harbers ,  Matthijs Keuper ,  Daniel Steigerwald

    IPC分类号： H01L33/58 ,  H04N9/31 ,  H01L27/15 ,  H01L21/00

    CPC分类号： H04N9/315 ,  H01L33/58 ,  H01L2933/0058

    摘要： The luminance of a system that includes a light emitting diode (LED), such as a projection system, may be increased by using an LED chip that has a light emitting surface that emits light directly into any medium with a refractive index of less than or equal to approximately 1.25. For example, the LED chip may emit light directly into the ambient environment, such as air or gas, instead of into an encapsulant. The low refractive index decreases the étendue of the LED, which increases luminance. Moreover, without an encapsulant, a collimating optical element, such as a lens, can be positioned close to the light emitting surface of the LED chip, which advantageously permits the capture of light emitted at large angles. A secondary collimating optical element may be used to assist in focusing the light on a target, such as a micro-display.

    摘要翻译： 包括诸如投影系统的发光二极管（LED）的系统的亮度可以通过使用LED芯片来增加，该LED芯片具有发光表面，该发光表面直接将光直接发射到折射率小于或等于 等于大约1.25。 例如，LED芯片可以直接将光发射到诸如空气或气体的周围环境中，而不是进入密封剂。 低折射率降低了LED的亮度，增加了亮度。 此外，没有密封剂，诸如透镜的准直光学元件可以靠近LED芯片的发光表面定位，这有利地允许捕获以大角度发射的光。 辅助准直光学元件可以用于帮助将光聚焦在诸如微显示器的目标上。

    Vehicle headlamp and a vehicle
    76.
    发明授权
    Vehicle headlamp and a vehicle 有权
    车头灯和车辆

    公开(公告)号：US06676282B2

    公开(公告)日：2004-01-13

    申请号：US10287221

    申请日：2002-11-04

    申请人： Simon H. A. Begemann ,  Gerard Harbers

    发明人： Simon H. A. Begemann ,  Gerard Harbers

    IPC分类号： F21V2900

    CPC分类号： F21S41/663 ,  F21S41/143 ,  F21Y2115/10 ,  Y10S362/80

    摘要： A headlamp (2; 3) of a vehicle (1) has a light source (4; 5) comprising a plurality of opto-electronic elements (11; 12; 13; 14), preferably light-emitting diodes (LED's). At least one of these opto-electronic elements (11; 12; 13; 14) has, in operation, a luminous flux of 5 lm or higher. According to the invention, the spectral characteristic of the light beam (6, 6′; 7, 7′) generated by the light source (4; 5) depends upon the position in the light beam (6, 6′; 7, 7′). Preferably, the light source (4; 5) comprises opto-electronic elements (11; 12; 13; 14) only. The light beam comprises at least two light beam segments (6, 6′; 7, 7′) having essentially different spectral characteristics. Preferably, one of the light beam segments (6′; 7′) is mesotopically tuned. In particular, a first light beam segment (6; 7) comprises a considerable amount of white or yellow-orange light, and a second light beam segment (6′; 7′) comprises a considerable amount of blue-green light.

    摘要翻译： 车辆（1）的前照灯（2; 3）具有包括多个光电元件（11; 12; 13; 14）的光源（4; 5），优选地是发光二极管（LED）。 这些光电子元件（11; 12; 13; 14）中的至少一个在操作中具有5lm或更高的光通量。 根据本发明，由光源（4; 5）产生的光束（6,6'; 7,7'）的光谱特性取决于光束（6,6'; 7,7'）中的位置 '）。 优选地，光源（4; 5）仅包括光电元件（11; 12; 13; 14）。 光束包括具有基本上不同光谱特性的至少两个光束段（6,6'; 7,7'）。 优选地，光束段（6'; 7'）中的一个被中间调谐。 特别地，第一光束段（6; 7）包括相当大量的白色或黄色 - 橙色光，并且第二光束段（6'; 7'）包括相当数量的蓝绿色光。

    EFFICIENT LED-BASED ILLUMINATION MODULES WITH HIGH COLOR RENDERING INDEX
    78.
    发明申请
    EFFICIENT LED-BASED ILLUMINATION MODULES WITH HIGH COLOR RENDERING INDEX 有权

    公开(公告)号：US20130343034A1

    公开(公告)日：2013-12-26

    申请号：US13854663

    申请日：2013-04-01

    申请人： Gerard Harbers ,  Raghuram L.V. Petluri

    发明人： Gerard Harbers ,  Raghuram L.V. Petluri

    IPC分类号： F21K99/00

    CPC分类号： F21K9/64 ,  C09K11/7734 ,  C09K11/7774 ,  F21K9/62 ,  F21V7/22 ,  F21Y2103/33 ,  F21Y2115/10 ,  Y10S362/80

    摘要： An illumination module includes a light mixing cavity with an interior surface area and window that are physically separated from an LED. A portion of the window is coated with a first wavelength converting material and a portion of the interior surface area is coated with a second wavelength converting material. The window may be coated with LuAG:Ce. The window may also be coated with a third wavelength converting material with a peak emission wavelength between 615-655 nm where the spectral response of light emitted from the window is within 20% of a blackbody radiator at the same CCT. The LED may emit a light that is converted by the light mixing cavity with a color conversion efficiency ratio greater than 130 lm/W where the light mixing cavity includes two photo-luminescent materials with a peak emission wavelengths between 508-528 nm and 615-655 nm.