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    • 2. 发明授权
    • Light emission device
    • 发光装置
    • US08513873B2
    • 2013-08-20
    • US13274821
    • 2011-10-17
    • George R. Brandes
    • George R. Brandes
    • H01L33/00H01J1/62
    • C09K11/623C09K11/586C09K11/7421C09K11/7702C09K11/7721C09K11/7734F21K9/00F21Y2113/17F21Y2115/10H01L25/0753H01L2924/0002Y02B20/181Y10S362/80H01L2924/00
    • A light emission device includes multiple electrically activated solid state emitters (e.g., LEDs) having differing spectral output from one another; and/or phosphor material including one or more phosphors arranged to receive spectral output from at least one of the solid state emitters and to responsively emit a phosphor output, to provide spectral output. In one arrangement, multiple LEDs and multiple phosphors have different peak wavelengths and provide aggregated light output with less than four light emission peaks. In one arrangement, a plot of aggregated output emissions (light intensity versus wavelength) has a non-negative slope between more than two wavelength peaks. In one arrangement, a light emission device generates a user-perceptible transition in color of light at a predetermined time period as an indicative of a need to perform at least one selected task.
    • 发光装置包括彼此具有不同光谱输出的多个电激活固态发射器(例如,LED); 和/或磷光体材料,其包括一个或多个磷光体,被配置为接收来自至少一个固态发射体的光谱输出并且响应地发射磷光体输出,以提供光谱输出。 在一种布置中,多个LED和多个磷光体具有不同的峰值波长,并提供具有小于四个发光峰值的聚集光输出。 在一个布置中,聚集的输出发射(光强度对波长)的曲线在两个以上波长峰之间具有非负斜率。 在一种布置中,发光装置在预定时间周期内产生用户感知的光的颜色转变,以指示需要执行至少一个所选择的任务。
    • 4. 发明申请
    • WHITE LIGHT EMITTING DIODE (LED) LIGHTING DEVICE
    • 白光发光二极管(LED)照明装置
    • US20130015474A1
    • 2013-01-17
    • US13583428
    • 2010-07-09
    • Ming ZhangKun ZhaoDong-ming Li
    • Ming ZhangKun ZhaoDong-ming Li
    • H01L33/50
    • C09K11/7792C09K11/586C09K11/7421C09K11/7703C09K11/7761C09K11/7774H01L33/504Y02B20/181
    • An alternating current (AC) white LED lighting device and a method for manufacturing the same are provided. The AC white LED lighting device consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. Because of using afterglow luminescence materials, the light will be sustained when an excitation light source disappears, which can eliminate the influence of LED chips light output variation due to the AC fluctuation on the lighting device. And the problem of the heating of the chips also can be overcome. At the same time, the influence of temperature quenching effect and direction change of the AC current on the AC white LED lighting device is eliminated.
    • 提供交流(AC)白光LED照明装置及其制造方法。 交流白光LED照明装置由蓝色,紫色或紫外线LED芯片,蓝色余辉发光材料A和黄色发光材料B组成。其中蓝色余辉发光材料A与黄色发光材料B的重量比为10-70重量% :30-90重量%。 由于使用余辉发光材料,当激发光源消失时,光将会持续,这样可以消除由于照明装置上的交流波动引起的LED芯片光输出变化的影响。 而且芯片加热的问题也可以克服。 同时,消除了交流电流对AC白光LED照明装置的温度淬火效应和方向变化的影响。