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38 条记录 (耗时 0.025 秒)

    Selective filtering of wavelength-converted semiconductor light emitting devices
    16.
    发明授权
    Selective filtering of wavelength-converted semiconductor light emitting devices 有权
    波长转换半导体发光器件的选择滤波

    公开(公告)号：US06744077B2

    公开(公告)日：2004-06-01

    申请号：US10260090

    申请日：2002-09-27

    申请人： Troy A. Trottier ,  Gerd O. Mueller ,  Regina B. Mueller-Mach ,  Michael R. Krames

    发明人： Troy A. Trottier ,  Gerd O. Mueller ,  Regina B. Mueller-Mach ,  Michael R. Krames

    IPC分类号： H01L3300

    CPC分类号： H01L33/44 ,  H01L33/50 ,  H01L2224/14

    摘要： A light emitting device includes a semiconductor light emitting device chip having a top surface and a side surface, a wavelength-converting material overlying at least a portion of the top surface and the side surface of the chip, and a filter material overlying the wavelength-converting material. The chip is capable of emitting light of a first wavelength, the wavelength-converting material is capable of absorbing light of the first wavelength and emitting light of a second wavelength, and the filter material is capable of absorbing light of the first wavelength. In other embodiments, a light emitting device includes a filter material capable of reflecting light of a first wavelength and transmitting light of a second wavelength.

    摘要翻译： 发光装置包括具有顶表面和侧表面的半导体发光器件芯片，覆盖在芯片的顶表面和侧表面的至少一部分上的波长转换材料，以及覆盖波长转换材料的过滤材料， 转换材料。 该芯片能够发射第一波长的光，波长转换材料能够吸收第一波长的光并发射第二波长的光，并且滤光片材料能够吸收第一波长的光。 在其他实施例中，发光器件包括能够反射第一波长的光并透射第二波长的光的滤光材料。

    Thin film phosphor-converted light emitting diode device
    18.
    发明授权
    Thin film phosphor-converted light emitting diode device 有权
    薄膜磷光体转换发光二极管器件

    公开(公告)号：US06696703B2

    公开(公告)日：2004-02-24

    申请号：US09405938

    申请日：1999-09-27

    申请人： Regina B. Mueller-Mach ,  Gerd O. Mueller

    发明人： Regina B. Mueller-Mach ,  Gerd O. Mueller

    IPC分类号： H01L3300

    CPC分类号： H01L33/50 ,  H01L33/46 ,  H01L33/504 ,  Y10S257/918

    摘要： The present invention provides a phosphor-converted LED device comprising one or more phosphor thin films that convert primary light emitted by the LED into one or more other wavelengths of light to produce light of a particular color. Each phosphor thin film comprises dopant ions that are statistically spatially distributed in such a manner that the phosphor conversion of the primary light is predictable and controlled by the concentration of the dopants and by the thickness of the thin film. Therefore, variations in the color of the light produced by phosphor-converted LED devices can be eliminated, thereby enabling uniformity in the quality of the colored light produced to be ensured. In accordance with one embodiment of the present invention, a single phosphor thin film is comprised by the LED device. The thin film converts a portion of the primary emission into yellow light while allowing a portion of the primary blue light to pass through the thin film. The primary light and the yellow light combine to produce white light. Alternatively, a plurality of phosphor thin films, each of which emits a different color of light, may be comprised in the LED device. Each of the thin films converts a portion of primary radiation into a particular color of light, e.g., red or green light. The red light, green light and the unconverted primary light combine to form white light. Alternatively, one of the thin films completely absorbs the primary radiation and converts it into blue light. This converted blue light then functions as the primary light that undergoes phosphor conversion via one or more other phosphor thin films to produce white light. One or more thin films may be used in this manner to perform phosphor conversion to produce light of colors other than white, such as green light.

    摘要翻译： 本发明提供了一种磷光体转换的LED器件，其包括一个或多个荧光体薄膜，其将由LED发射的原始光转换成一个或多个其它波长的光以产生特定颜色的光。 每个荧光体薄膜包括统计学上以空间分布的掺杂剂离子，使得初级光的荧光体转换是可预测的并且由掺杂剂的浓度和薄膜的厚度控制。 因此，可以消除由磷光体转换的LED器件产生的光的颜色的变化，从而可以确保产生的着色光的质量的均匀性。 根据本发明的一个实施例，由LED器件构成单个荧光体薄膜。 薄膜将一次发射的一部分转换成黄色光，同时允许一部分蓝色蓝光通过薄膜。 主光和黄光结合产生白光。 或者，可以在LED器件中包含多个发射不同颜色的光的荧光体薄膜。 每个薄膜将一部分初级辐射转换成特定的光色，例如红色或绿色光。 红光，绿光和未转换的主光结合形成白光。 或者，一个薄膜完全吸收主辐射并将其转换成蓝光。 这种转换的蓝光然后用作经由一个或多个其它荧光体薄膜进行磷光体转换以产生白光的主要光。 可以以这种方式使用一个或多个薄膜进行磷光体转换以产生除白色以外的其它颜色的光，例如绿光。

    Red-deficiency compensating phosphor light emitting device
    19.
    发明授权
    Red-deficiency compensating phosphor light emitting device 有权
    红色补偿荧光体发光装置

    公开(公告)号：US06680569B2

    公开(公告)日：2004-01-20

    申请号：US10083314

    申请日：2002-02-25

    申请人： Regina B. Mueller-Mach ,  Gerd O. Mueller ,  Tomas Jüestel ,  Peter Schmidt

    发明人： Regina B. Mueller-Mach ,  Gerd O. Mueller ,  Tomas Jüestel ,  Peter Schmidt

    IPC分类号： H01J162

    CPC分类号： H01L33/504 ,  H01L33/502

    摘要： A light emitting device includes a light source that emits first light in response to an electrical signal, and a fluorescent layer positioned over the light source. The fluorescent layer includes a first fluorescent material which radiates second light and a second fluorescent material which radiates third light. In one embodiment, the second fluorescent material contains europium activated calcium sulfide. In another embodiment, the second fluorescent material contains europium activated nitrido-silicate. In some embodiments, the device includes a light propagation medium which transmits the first, second, and third light as composite output.

    摘要翻译： 发光装置包括响应于电信号发射第一光的光源和位于光源上方的荧光层。 荧光层包括辐射第二光的第一荧光材料和辐射第三光的第二荧光材料。 在一个实施方案中，第二荧光材料含有铕激活的硫化钙。 在另一个实施方案中，第二荧光材料含有铕活化的氮化硅酸盐。 在一些实施例中，该装置包括传播第一，第二和第三光作为复合输出的光传播介质。