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    • 1. 发明公开
    • COLOR TUNABLE LIGHT SOURCE
    • 彩色可调光源
    • EP2153121A1
    • 2010-02-17
    • EP08747641.2
    • 2008-05-05
    • Intematix CorporationCollier, Ian
    • LI, Yi-QunDONG, YiXU, XiaofengCOLLIER, Ian
    • F21V9/00
    • H05B33/086F21K9/64H05B33/0818
    • A color tunable light source comprises: a first light emitting diode (LED) arrangement operable to emit light of a first color and a second LED arrangement operable to emit light of a second color, the combined light output comprising the output of the source. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation energy of a selected wavelength range and to irradiate the phosphor such that it emits light of a different color wherein light emitted by the LED arrangement comprises the combined light from the LED and phosphor and control means operable to control the color by controlling the relative light outputs of the two LED arrangements. The color can be controlled by controlling the relative magnitude of the drive currents of the LEDs or by controlling a duty cycle of PWM drive current.
    • 颜色可调光源包括:可操作来发射第一颜色的光的第一发光二极管(LED)布置和可操作来发射第二颜色的光的第二LED布置,组合的光输出包括源的输出。 一个或两个LED装置包括远离相关LED提供的磷光体,该LED可操作以产生所选波长范围的激发能量并照射磷光体,使得其发射不同颜色的光,其中由LED装置发射的光包括来自 LED和磷光体以及控制装置可操作以通过控制两个LED装置的相对光输出来控制颜色。 可以通过控制LED的驱动电流的相对大小或通过控制PWM驱动电流的占空比来控制颜色。
    • 3. 发明申请
    • COLOR TUNABLE LIGHT SOURCE
    • 彩色可调光源
    • WO2008137839A1
    • 2008-11-13
    • PCT/US2008/062648
    • 2008-05-05
    • INTEMATIX CORPORATIONCOLLIER, IanLI, Yi-QunDONG, YiXU, Xiaofeng
    • COLLIER, IanLI, Yi-QunDONG, YiXU, Xiaofeng
    • F21V9/00
    • H05B33/086F21K9/64H05B33/0818
    • A color tunable light source comprises: a first light emitting diode (LED) arrangement operable to emit light of a first color and a second LED arrangement operable to emit light of a second color, the combined light output comprising the output of the source. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation energy of a selected wavelength range and to irradiate the phosphor such that it emits light of a different color wherein light emitted by the LED arrangement comprises the combined light from the LED and phosphor and control means operable to control the color by controlling the relative light outputs of the two LED arrangements. The color can be controlled by controlling the relative magnitude of the drive currents of the LEDs or by controlling a duty cycle of PWM drive current.
    • 颜色可调光源包括:可操作以发射第一颜色的光的第一发光二极管(LED)布置和可操作以发射第二颜色的光的第二LED布置,所述组合光输出包括所述源的输出。 一个或两个LED布置包括远离相关联的LED的磷光体,其可操作以产生所选波长范围的激发能量并且照射磷光体,使得其发射不同颜色的光,其中由LED装置发射的光包括来自 LED和磷光体以及控制装置可操作以通过控制两个LED装置的相对光输出来控制颜色。 可以通过控制LED的驱动电流的相对幅度或通过控制PWM驱动电流的占空比来控制颜色。