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    • 9. 发明申请
    • Dynamic color or white light phosphor converted LED illumination system
    • 动态颜色或白光磷光体转换LED照明系统
    • US20090026913A1
    • 2009-01-29
    • US11828641
    • 2007-07-26
    • Matthew Steven Mrakovich
    • Matthew Steven Mrakovich
    • H01J61/00G09G3/32
    • H05B33/0857H05B33/0803
    • A color tunable light emitting device includes multiple light emitting components such as light emitting diodes (LEDs) or laser diodes (LDs) with substantially the same emission characteristics, and multiple phosphors materials with different excitation and emission wavelengths, each excited by one of the light emitting components. The light emitting components are powered by an electrical circuit which allows separate control of the optical power output of the different light emitting components. The light from the light emitting components is arranged to impinge and excite a corresponding phosphor material such that the phosphors are excited and emit light at their characteristic wavelengths. By separately adjusting the power to each LED/LD, the amount of light emitted by each phosphor, and hence, through color mixing, the color of the light emitted, is varied.
    • 颜色可调谐发光器件包括具有基本相同发光特性的多个发光元件,例如发光二极管(LED)或激光二极管(LD),以及具有不同激发和发射波长的多个荧光体材料, 发射组件。 发光元件由允许对不同发光元件的光功率输出的单独控制的电路供电。 来自发光部件的光被布置成撞击并激发相应的荧光体材料,使得荧光体被激发并在其特征波长处发光。 通过分别调整每个LED / LD的功率,改变由每个荧光体发射的光,并因此通过颜色混合发射的光的颜色的量。