Color tunable light source
    1.
    发明授权
    Color tunable light source 有权
    彩色可调光源

    公开(公告)号:US06357889B1

    公开(公告)日:2002-03-19

    申请号:US09452554

    申请日:1999-12-01

    IPC分类号: H05B4300

    摘要: A color tunable light source (10) includes multiple light emitting components (32, 34, 36), such as light emitting diodes (LEDs) or laser diodes (LDs) with different emission wavelengths, and multiple phosphors (24) with different excitation and emission wavelengths. The emission wavelengths of the different light emitting components are chosen to match the excitation wavelengths of the different phosphors. The light emitting components are powered by an electrical circuit (42, 44, 46), which allows separate control of the optical power output of the different wavelength LEDs/LDs. The light from the light emitting components is arranged to impinge on the combination of phosphors 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.

    摘要翻译: 颜色可调谐光源(10)包括多个发光元件(32,34,36),例如具有不同发射波长的发光二极管(LED)或激光二极管(LD)以及具有不同激发的多个荧光体(24) 发射波长。 选择不同发光组件的发射波长以匹配不同荧光体的激发波长。 发光元件由电路(42,44,46)供电,其允许分开控制不同波长LED / LD的光功率输出。 来自发光部件的光被布置成撞击荧光体的组合,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。

    Circuit arrangement for operating a lamp
    2.
    发明授权
    Circuit arrangement for operating a lamp 失效
    用于操作灯的电路布置

    公开(公告)号:US06329760B1

    公开(公告)日:2001-12-11

    申请号:US09454192

    申请日:1999-12-03

    IPC分类号: H05B4300

    摘要: In a circuit arrangement for operating a lamp, an impulse generator for generating series of impulses having a frequency of more than 10 Hz is provided and is connected to a voltage source and to the lamp for operating the lamp with the series of pulses so as to generate bright light pulses at a frequency of at least 10 Hz.

    摘要翻译: 在用于操作灯的电路装置中,提供用于产生具有大于10Hz的频率的脉冲串的脉冲发生器,并且连接到电压源和用于以一系列脉冲操作灯的灯,以便 以至少10 Hz的频率产生亮光脉冲。