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    Color tunable light source
    1.
    发明申请
    Color tunable light source 有权
    彩色可调光源

    公开(公告)号：US20080278927A1

    公开(公告)日：2008-11-13

    申请号：US11800976

    申请日：2007-05-07

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    IPC分类号： F21V9/16

    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。

    COLOR TUNABLE LIGHT SOURCE
    2.
    发明申请
    COLOR TUNABLE LIGHT SOURCE 审中-公开
    彩色可调光源

    公开(公告)号：US20100052560A1

    公开(公告)日：2010-03-04

    申请号：US12617575

    申请日：2009-11-12

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    IPC分类号： H05B41/16

    CPC分类号： H05B33/086 ,  F21K9/64 ,  H05B33/0818

    摘要： A color tunable light source comprising: a first LED arrangement operable to emit light of a first color and a second LED arrangement operable to emit light of a second color, the LED arrangements being configured such that their combined light comprises the output of the source and control means operable to control the color of light emitted by the source by controlling the relative light outputs of the two LED arrangements wherein the control means is operable to dynamically switch the outputs of the LED arrangements and the color is tunable by controlling a duty cycle of the drive current. One or both LED arrangements can comprise at least one phosphor and an associated LED that is operable to irradiate the phosphor with excitation radiation of a first wavelength range such that the phosphor emits light of a different wavelength range.

    摘要翻译： 一种颜色可调光源，包括：可操作以发射第一颜色的光的第一LED布置和可操作以发射第二颜色的光的第二LED布置，所述LED布置被配置为使得它们的组合光包括源的输出和 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由源发射的光的颜色，其中控制装置可操作地动态地切换LED装置的输出，并且颜色可通过控制LED的占空比来调节 驱动电流。 一个或两个LED布置可以包括至少一个磷光体和相关联的LED，其可操作以用第一波长范围的激发辐射照射荧光体，使得荧光体发射不同波长范围的光。

    Color tunable light source
    3.
    发明授权
    Color tunable light source 有权
    彩色可调光源

    公开(公告)号：US07703943B2

    公开(公告)日：2010-04-27

    申请号：US11800976

    申请日：2007-05-07

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu ,  Ian Collier

    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。

    Color temperature tunable white light source
    4.
    发明授权
    Color temperature tunable white light source 有权
    色温可调白光源

    公开(公告)号：US08203260B2

    公开(公告)日：2012-06-19

    申请号：US11787107

    申请日：2007-04-13

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    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.

    摘要翻译： 色温可调白光源包括：第一和第二LED装置，其可操作以分别发射第一和第二波长范围的光，所述第一和第二波长范围被配置为使得它们的组合光输出（其包括源产生的光）看起来是白色的。 一个或两个LED布置包括荧光体，远离相关联的LED，其可操作以产生激发辐射并照射磷光体，使得其发射不同波长范围的光，其中由LED装置发射的光包括来自LED的组合光 和磷光体。 通过例如控制LED的驱动电流的相对幅度或脉冲宽度调制的驱动电流的占空比来控制LED配置的相对光输出，可以调节输出白光的色温。

    Color temperature tunable white light source
    5.
    发明授权
    Color temperature tunable white light source 有权
    色温可调白光源

    公开(公告)号：US08773337B2

    公开(公告)日：2014-07-08

    申请号：US13102448

    申请日：2011-05-06

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    IPC分类号： H05B37/02

    CPC分类号： H05B33/086 ,  F21K9/00 ,  H05B33/0818 ,  H05B33/0827

    摘要： A color temperature tunable white light source comprises a first LED arrangement comprising at least one blue emitting LED configured to excite a remote phosphor and a second LED arrangement comprising at least one red emitting LED. The LED arrangements are configured such that the composite light emitted by the LED arrangements appears white in color. The relative drive currents of the LEDs is controllable, and thus variable in relative magnitude, such that the color temperature of the composite light emitted by the source is electrically tunable.

    摘要翻译： 色温可调白光源包括第一LED装置，其包括配置成激发远端荧光体的至少一个蓝色发光LED和包括至少一个红色发光LED的第二LED装置。 LED配置被配置为使得由LED装置发射的复合光呈现白色。 LED的相对驱动电流是可控的，因此可以相对大小变化，使得由源发射的复合光的色温是电可调谐的。

    COLOR TEMPERATURE TUNABLE WHITE LIGHT SOURCE
    6.
    发明申请
    COLOR TEMPERATURE TUNABLE WHITE LIGHT SOURCE 有权
    色温TUNABLE白光源

    公开(公告)号：US20110204805A1

    公开(公告)日：2011-08-25

    申请号：US13102448

    申请日：2011-05-06

    申请人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    发明人： Yi-Qun Li ,  Yi Dong ,  Xiaofeng Xu

    IPC分类号： H05B37/02 ,  H05B41/16

    CPC分类号： H05B33/086 ,  F21K9/00 ,  H05B33/0818 ,  H05B33/0827

    摘要： A color temperature tunable white light source comprises a first LED arrangement comprising at least one blue emitting LED configured to excite a remote phosphor and a second LED arrangement comprising at least one red emitting LED. The LED arrangements are configured such that the composite light emitted by the LED arrangements appears white in color. The relative drive currents of the LEDs is controllable, and thus variable in relative magnitude, such that the color temperature of the composite light emitted by the source is electrically tunable.

    摘要翻译： 色温可调白光源包括第一LED装置，其包括配置成激发远端荧光体的至少一个蓝色发光LED和包括至少一个红色发光LED的第二LED装置。 LED配置被配置为使得由LED装置发射的复合光呈现白色。 LED的相对驱动电流是可控的，并且因此可以相对大小变化，使得由源发射的复合光的色温是电可调谐的。

    LIGHT EMITTING DEVICES WITH PHOSPHOR WAVELENGTH CONVERSION AND METHODS OF MANUFACTURE THEREOF
    8.
    发明申请
    LIGHT EMITTING DEVICES WITH PHOSPHOR WAVELENGTH CONVERSION AND METHODS OF MANUFACTURE THEREOF 审中-公开
    具有磷光体波长转换的发光装置及其制造方法

    公开(公告)号：US20100181582A1

    公开(公告)日：2010-07-22

    申请号：US12689449

    申请日：2010-01-19

    申请人： Yi-Qun Li ,  Jonathan Melman ,  Ian Collier

    发明人： Yi-Qun Li ,  Jonathan Melman ,  Ian Collier

    IPC分类号： H01L33/00

    CPC分类号： H01L33/44 ,  H01L33/501 ,  H01L33/54 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2924/00014

    摘要： A light emitting device comprises: a package (low temperature co-fired ceramic) having a plurality of recesses (cups) in which each recess houses at least one LED chip and at least one phosphor material applied as coating to the light emitting light surface of the LED chips, wherein the phosphor material coating is conformal in form. In another arrangement a light emitting device comprises: a planar substrate (metal core printed circuit board); a plurality of light emitting diode chips mounted on, and electrically connected to, the substrate; a conformal coating of at least one phosphor material on each light emitting diode chip; and a lens formed over each light emitting diode chip.

    摘要翻译： 发光装置包括：具有多个凹部（杯）的封装（低温共烧陶瓷），其中每个凹部容纳至少一个LED芯片，并且至少一个磷光体材料作为涂层施加到发光光表面上 LED芯片，其中磷光体材料涂层的形状是共形的。 在另一种布置中，发光器件包括：平面基板（金属芯印刷电路板）; 多个发光二极管芯片，安装在基板上并电连接到基板上; 每个发光二极管芯片上的至少一种磷光体材料的保形涂层; 以及形成在每个发光二极管芯片上的透镜。

    LED-BASED LAMPS
    10.
    发明申请
    LED-BASED LAMPS 有权
    基于LED的LAMPS

    公开(公告)号：US20120147624A1

    公开(公告)日：2012-06-14

    申请号：US13156197

    申请日：2011-06-08

    申请人： Yi-Qun Li ,  Ian Collier

    发明人： Yi-Qun Li ,  Ian Collier

    IPC分类号： F21V8/00

    CPC分类号： F21V7/0008 ,  F21K9/232 ,  F21K9/233 ,  F21K9/61 ,  F21K9/64 ,  F21V3/08 ,  F21V3/12 ,  F21V7/0025 ,  F21V7/06 ,  F21V7/22 ,  F21V29/505 ,  F21V29/773 ,  F21W2121/00 ,  F21Y2115/10 ,  G02B6/0003 ,  G02B6/0008

    摘要： A lamp comprises: a dish-shaped (parabolic); an LED operable to generate excitation light; a light guide configured to extend along an axis of the reflector, wherein light generated by the at least one LED is coupled into a first end of the light guide and wherein light is emitted from the light guide at a light emitting surface that is in proximity to a second end of the light guide and at least one phosphor material provided as a layer on at least a part of the light emitting surface of the light guide. An LED light bulb is also disclosed.

    摘要翻译： 灯包括：碟形（抛物线）; 可操作地产生激发光的LED; 配置成沿着所述反射器的轴线延伸的光导，其中由所述至少一个LED产生的光耦合到所述光导的第一端中，并且其中光在所述光导处发射在接近的发光表面处 到光导的第二端，以及至少一个磷光体材料，其被设置为在光导的发光表面的至少一部分上的层。 还公开了一种LED灯泡。