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公开(公告)号：US09322517B2
公开(公告)日：2016-04-26
申请号：US12470332
申请日：2009-05-21
申请人： Tin Po Chu , Wa Hing Leung
发明人： Tin Po Chu , Wa Hing Leung
IPC分类号： F21V7/04 , F21K99/00 , F21S8/10 , F21V7/00 , F21V23/00 , F21V29/00 , F21V19/00 , F21V29/507 , F21V29/77 , F21V29/85 , F21V29/89 , F21V7/06 , F21V7/07 , F21V7/08 , F21Y101/02 , F21V29/505
CPC分类号： F21V29/51 , F21K9/233 , F21S45/47 , F21V7/0008 , F21V7/048 , F21V7/06 , F21V7/07 , F21V7/08 , F21V19/0015 , F21V23/005 , F21V29/505 , F21V29/507 , F21V29/773 , F21V29/85 , F21V29/89 , F21Y2101/02 , F21Y2115/10
摘要： A lighting apparatus using at least one light-emitting diode (“LED”), back-reflecting collection optics for LEDs, and an improved heat sink mounting apparatus which promotes efficient heat dissipation generated from the LED while minimizing light obstruction and glare. The lighting apparatus contains a main housing; a reflector disposed within the main housing, the reflector having a front side and a rear side; a top rim thermally coupled to one end of the main housing; a heat conducting body positioned to face the front side of the reflector, the heat conducting body comprising a heat pipe thermally coupled to the top rim; at least one light-emitting diode thermally coupled to the heat conducting body, the at least one light-emitting diode being positioned to face directly at the front side of the reflector so that light emitted from the at least one light-emitting diode is directed to the front side of the reflector.
摘要翻译： 使用至少一个发光二极管（“LED”），用于LED的反射反射收集光学器件和改进的散热器安装装置的照明装置，其促进从LED产生的有效散热，同时最小化光障碍物和眩光。 照明装置包含主壳体; 设置在主壳体内的反射器，反射器具有前侧和后侧; 与所述主壳体的一端热耦合的顶部边缘; 导热体，其定位成面向所述反射器的前侧，所述导热体包括热耦合到所述顶部边缘的热管; 至少一个热耦合到所述导热体的发光二极管，所述至少一个发光二极管被定位成直接面对所述反射器的前侧，使得从所述至少一个发光二极管发射的光被定向 到反射器的正面。
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公开(公告)号：US08766555B2
公开(公告)日：2014-07-01
申请号：US13157747
申请日：2011-06-10
申请人： Qifei Tu , Wa-Hing Leung
发明人： Qifei Tu , Wa-Hing Leung
IPC分类号： H05B33/14 , H05B33/08 , F21V7/00 , F21Y113/00 , F21Y101/02
CPC分类号： H05B33/0818 , F21V7/0008 , F21Y2113/13 , F21Y2115/10 , H05B33/0863 , H05B33/0872 , Y02B20/347
摘要： A lighting apparatus includes: first, second and third groups of solid state light emitters; a first group of lumiphors; at least first, second and third power lines, the first, second and third group of solid state light emitters each being electrically coupled to at least one of the first, second and third power lines. A current controller controls the relative flux ratios of the first, second and third groups, the controller being programmed to, in response to receipt of a command, retrieve a set of data from a look-up table that contains information of the required flux output of each group of LEDs and generate pulse width modulation (PWM) signals to control current supplied to each group to alter the flux output of each group in order to achieve a desired CCT and total flux output.
摘要翻译： 照明装置包括：第一组，第二组和第三组固态发光体; 第一组发光体; 至少第一，第二和第三电力线，所述第一，第二和第三组固态发光体各自电耦合到所述第一，第二和第三电力线中的至少一个。 电流控制器控制第一组，第二组和第三组的相对通量比，控制器被编程为响应于接收到命令，从查找表中检索包含所需磁通输出信息的一组数据 并且产生脉冲宽度调制（PWM）信号以控制提供给每个组的电流，以改变每组的通量输出，以便实现期望的CCT和总通量输出。
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公开(公告)号：US08613526B1
公开(公告)日：2013-12-24
申请号：US13584911
申请日：2012-08-14
IPC分类号： F21V9/00
CPC分类号： A01K63/06 , F21S8/061 , F21V23/0435 , F21W2131/308 , F21Y2113/13 , F21Y2115/10 , H05B33/0803
摘要： A lighting fixture comprising a housing, and a light engine mounted to the housing and having an LED array. The LED array comprises deep-blue LEDs having a perceived wavelength within a range of 450 to 465 nm, and a percentage of total luminous flux in a range of 1 to 7%; true-green LEDs having a perceived wavelength within a range of 523 to 527 nm, and a percentage of total luminous flux in a range of 53 to 70%; red-orange LEDs having a perceived wavelength within a range of 610 to 620 nm, and a percentage of total luminous flux in a range of 19 to 32%; and phosphor-based coolwhite LEDs having a percentage of total luminous flux in a range of 5 to 15%, wherein the light engine has a correlated color temperature (CCT) in a range of 4500 to 10000K.
摘要翻译： 一种照明器具，包括壳体和安装到壳体并具有LED阵列的光引擎。 LED阵列包括具有感测波长在450至465nm范围内的深蓝色LED，总光通量百分比在1至7％范围内; 感光波长在523〜527nm范围内的真绿LED，总光通量的百分比在53〜70％的范围内。 具有感知波长在610至620nm范围内的红橙色LED，总光通量百分比在19至32％的范围内; 以及总光通量百分比在5〜15％范围内的基于荧光体的白光LED，其中光引擎具有在4500〜10000K范围内的相关色温（CCT）。
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公开(公告)号：US20130039048A1
公开(公告)日：2013-02-14
申请号：US13559231
申请日：2012-07-26
申请人： Chung W. Lo , Yuk Tsan Sy , Wa Hing Leung
发明人： Chung W. Lo , Yuk Tsan Sy , Wa Hing Leung
CPC分类号： F21K9/232 , F21V29/87 , F21V29/89 , F21Y2115/10
摘要： An LED lighting device comprises: (a) a housing comprising: (i) a metal inner portion; and (ii) a porcelain enamel coating over at least a portion of an outer surface of the metal inner portion; and (b) at least one LED, the at least one LED being thermally coupled to the housing. The housing is configured to conduct heat from the at least one LED to the surrounding environment.
摘要翻译： LED照明装置包括：（a）壳体，包括：（i）金属内部; 和（ii）在所述金属内部的外表面的至少一部分上的瓷釉涂层; 和（b）至少一个LED，所述至少一个LED热耦合到所述壳体。 壳体被配置为将热量从至少一个LED传导到周围环境。
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5.发明申请公开(公告)号：US20110115401A1
公开(公告)日：2011-05-19
申请号：US12949684
申请日：2010-11-18
IPC分类号： H05B37/02
CPC分类号： H05B33/0845 , H05B33/0812 , H05B33/0815 , Y02B20/343
摘要： A circuit for driving a light emitting diode (LED) comprises: an alternating voltage power supply, comprising a triac dimmer having a firing angle and output terminals that provide power to the LED; a zero crossing detector that detects a polarity change of the alternating voltage provided by the alternating voltage power supply and provides a zero crossing output signal indicative of the zero crossing; a timer triggered by the zero crossing output signal that generates a timer output signal during a time period of the timer; and LED power circuitry that reduces current to the light emitting diode based upon timing characteristics of the timer output signal.
摘要翻译： 一种用于驱动发光二极管（LED）的电路包括：交流电压电源，包括具有触发角的三端双向可控硅调光器和向LED提供电力的输出端子; 检测交流电压提供的交流电压的极性变化的过零检测器，并提供表示过零点的零交叉输出信号; 由过零输出信号触发的定时器，其在定时器的时间段期间产生定时器输出信号; 以及基于定时器输出信号的定时特性降低到发光二极管的电流的LED电源电路。
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公开(公告)号：US20090290349A1
公开(公告)日：2009-11-26
申请号：US12470332
申请日：2009-05-21
申请人： Tin Po Chu , Wa Hing Leung
发明人： Tin Po Chu , Wa Hing Leung
IPC分类号： F21S4/00
CPC分类号： F21V29/51 , F21K9/233 , F21S45/47 , F21V7/0008 , F21V7/048 , F21V7/06 , F21V7/07 , F21V7/08 , F21V19/0015 , F21V23/005 , F21V29/505 , F21V29/507 , F21V29/773 , F21V29/85 , F21V29/89 , F21Y2101/02 , F21Y2115/10
摘要： A lighting apparatus using at least one light-emitting diode (“LED”), back-reflecting collection optics for LEDs, and an improved heat sink mounting apparatus which promotes efficient heat dissipation generated from the LED while minimizing light obstruction and glare. The lighting apparatus contains a main housing; a reflector disposed within the main housing, the reflector having a front side and a rear side; a top rim thermally coupled to one end of the main housing; a heat conducting body positioned to face the front side of the reflector, the heat conducting body comprising a heat pipe thermally coupled to the top rim; at least one light-emitting diode thermally coupled to the heat conducting body, the at least one light-emitting diode being positioned to face directly at the front side of the reflector so that light emitted from the at least one light-emitting diode is directed to the front side of the reflector.
摘要翻译： 使用至少一个发光二极管（“LED”），用于LED的后反射收集光学器件和改进的散热器安装装置的照明装置，其促进从LED产生的高效散热，同时最小化光障碍物和眩光。 照明装置包含主壳体; 设置在主壳体内的反射器，反射器具有前侧和后侧; 与所述主壳体的一端热耦合的顶部边缘; 导热体，其定位成面向所述反射器的前侧，所述导热体包括热耦合到所述顶部边缘的热管; 至少一个热耦合到所述导热体的发光二极管，所述至少一个发光二极管被定位成直接面对所述反射器的前侧，使得从所述至少一个发光二极管发射的光被定向 到反射器的正面。
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公开(公告)号：US09357604B2
公开(公告)日：2016-05-31
申请号：US13585463
申请日：2012-08-14
申请人： Kam Wah Siu , Wa Hing Leung
发明人： Kam Wah Siu , Wa Hing Leung
CPC分类号： H05B33/0824 , H01L2224/48137 , H01L2224/48472 , H01L2224/73265 , H01L2924/13091 , H01L2924/30107 , H05B33/0803 , H01L2924/00
摘要： An LED array switching apparatus comprises, on a single PCB substrate: a plurality of LED arrays D1 to Dn connected in series, each LED array having a forward voltage; an AC voltage supply coupled to the plurality of LED arrays; and a plurality of constant current sources G1 to Gn, coupled to outputs of LED arrays D1 to Dn, respectively, each of the constant current sources being switchable between a current regulating state and an open state such that as the voltage of the AC voltage supply increases, LED arrays are switched on and lit to form a higher forward voltage LED string, and as the voltage of the AC voltage supply decreases, LED arrays are switched off and removed from the LED string starting with the most recently lit LED array.
摘要翻译： LED阵列开关装置包括：在单个PCB基板上：串联连接的多个LED阵列D1至Dn，每个LED阵列具有正向电压; 耦合到所述多个LED阵列的AC电压源; 以及分别耦合到LED阵列D1至Dn的输出的多个恒流源G1至Gn，每个恒定电流源可在电流调节状态和断开状态之间切换，使得当AC电压电源 LED阵列被接通并点亮以形成更高的正向电压LED串，并且随着交流电压电源的电压降低，LED阵列从最近点亮的LED阵列开始关闭并从LED串去除。
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公开(公告)号：US08947014B2
公开(公告)日：2015-02-03
申请号：US13035556
申请日：2011-02-25
申请人： Wa-Hing Leung , Johnny Siu
发明人： Wa-Hing Leung , Johnny Siu
CPC分类号： H05B33/083 , H05B33/0824 , H05B33/0845
摘要： An LED array switching apparatus, comprises: a plurality of LED arrays arranged in a serial path; a voltage supply coupled to the plurality of LED arrays; a plurality of current sources selectively coupled to the LED arrays, each of the current sources being switchable between a current regulating state and an open state; and a controller that outputs at least one control signal. The controller, the at least one switch and current sources cooperate together such that: when the voltage of the voltage source is below the at least one reference voltage, and/or when a predetermined level of current passes through the one or more current sources, at least one switch is closed and one or more associated current sources are controlled so as to break the serial path into one or more parallel paths each including less than all of the LED arrays.
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公开(公告)号：US20120195042A1
公开(公告)日：2012-08-02
申请号：US13401724
申请日：2012-02-21
申请人： Tin Po Chu , Wa Hing Leung
发明人： Tin Po Chu , Wa Hing Leung
CPC分类号： F21V7/04 , F21K9/233 , F21K9/238 , F21V7/0008 , F21V7/048 , F21V7/06 , F21V7/07 , F21V7/08 , F21V19/0015 , F21V23/005 , F21V29/004 , F21V29/006 , F21V29/507 , F21V29/51 , F21V29/773 , F21V29/85 , F21V29/89 , F21Y2115/10
摘要： A lighting apparatus contains a main housing; a reflector disposed within the main housing, and having a front side and a rear side; a heat conducting body comprising at least two heat pipes, wherein a first portion of the at least two heat pipes are parallel to a central axis of the lighting apparatus on the front side of the reflector, and a second portion of each of the at least two heat pipes is in the rear side of the reflector and is thermally coupled to the main housing; a heat conducting head located on the front side of the reflector, and is thermally coupled to the heat conducting body; at least two light-emitting diodes. (“LEDs”) thermally coupled to the heat conducting body, and being positioned to face the front side of the reflector so that light emitted from the LEDs are directed to said front side.
摘要翻译： 照明装置包含主壳体; 反射器，设置在主壳体内，并具有前侧和后侧; 包括至少两个热管的导热体，其中所述至少两个热管的第一部分平行于所述反射器前侧上的所述照明设备的中心轴线，并且所述至少两个热管中的每一个的第二部分至少 两个热管位于反射器的后侧，并且热耦合到主壳体; 位于反射器前侧的导热头，并与热传导体热耦合; 至少两个发光二极管。 （“LED”），其热耦合到导热体，并且被定位成面对反射器的前侧，使得从LED发射的光被引导到所述前侧。
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公开(公告)号：US08723439B2
公开(公告)日：2014-05-13
申请号：US13696679
申请日：2010-12-06
申请人： Wa-Hing Leung , Kam Wah Siu
发明人： Wa-Hing Leung , Kam Wah Siu
CPC分类号： H05B37/00 , H05B33/0815 , H05B37/02 , H05B41/28 , H05B41/36 , Y02B20/347 , Y02B20/348
摘要： A power-factor-corrected power supply adapted to supply power to one or more light emitting diodes (LEDs), comprises: a triac dimmer electrically connected between an alternating current source and a bridge rectifier; a damping circuit electrically connected between the alternating current source and the bridge rectifier; a bleeder circuit configured to conduct current between a supply terminal of the bridge rectifier and ground only when a triac in the triac dimmer is not conducting current; a fast startup circuit configured to conduct current between the supply terminal of the bridge rectifier and a voltage supply terminal of a power-factor-corrected controller when the triac dimmer is initially turned on until a supply voltage capacitor coupled to the voltage supply terminal of the power-factor-corrected controller has charged; a dimming slope control circuit configured to reduce a first voltage sensed at a current sensing terminal of the power-factor-corrected controller, such that a reduced amount of current is supplied to the one or more LEDs at a given firing angle, wherein the first voltage is representative of a current flowing through a primary winding of a flyback transformer; and a dummy load circuit provided in parallel with the one or more LEDs to draw a holding current for the triac only after the triac is turned on.
摘要翻译： 适于向一个或多个发光二极管（LED）供电的功率因数校正电源包括：电连接在交流电源和桥式整流器之间的三端双向可控硅调光器; 电连接在交流电源和桥式整流器之间的阻尼电路; 一个放电电路，被配置为仅在三端双向可控硅调光器中的三端双向可控硅开关不导通电流时，在桥式整流器的电源端和地之间导通电流; 快速启动电路，其配置为当三端双向可控硅开关控制器最初接通时，在桥式整流器的电源端子和功率因数校正控制器的电压端子之间传导电流，直到电源电压耦合到电源电压端子 功率因数校正控制器已充电; 调光斜率控制电路，被配置为减少在功率因数校正的控制器的电流感测端检测到的第一电压，使得在给定触发角度向一个或多个LED提供减少的电流量，其中第一 电压表示流过回扫变压器的初级绕组的电流; 以及与所述一个或多个LED并联设置的虚拟负载电路，以在三端双向可控硅开关之后仅为三端双向可控硅开关提供保持电流。
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