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1. 发明公开

EP2153121A1 COLOR TUNABLE LIGHT SOURCE 审中-公开
标题翻译：彩色可调光源
公开(公告)号：EP2153121A1
公开(公告)日：2010-02-17
申请号：EP08747641.2
申请日：2008-05-05
申请人： Intematix Corporation , Collier, Ian
发明人： LI, Yi-Qun , DONG, Yi , XU, Xiaofeng , COLLIER, Ian
IPC分类号： F21V9/00
CPC分类号： H05B33/086 , F21K9/64 , H05B33/0818
摘要： 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.
摘要翻译：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。

2. 发明公开

EP2147450A1 COLOR TEMPERATURE TUNABLE WHITE LIGHT SOURCE 审中-公开
标题翻译：白色光源色温可调
公开(公告)号：EP2147450A1
公开(公告)日：2010-01-27
申请号：EP08742671.4
申请日：2008-04-09
申请人： Intematix Corporation
发明人： LI, Yi-Qun , DONG, Yi , XU, Xiaofeng
IPC分类号： H01J1/62
CPC分类号： H05B33/086 , F21K9/00 , H05B33/0818 , H05B33/0827
摘要： A color temperature tunable white light source comprises: first and second LED arrangements operable to emit light of first and second wavelength range respectively that are configured such that their combined light output, which comprises light generated by the source, appears white in color. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation radiation and to irradiate the phosphor such that it emits light of a different wavelength range, wherein the light emitted by the LED arrangement comprises the combined light from the LED and phosphor. The color temperature of output white light is tunable by controlling the relative light outputs of the LED arrangements by for example controlling the relative magnitude of the drive currents of the LEDs or a duty cycle of a pulse width modulated drive current.

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