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    • 61. 发明授权
    • Light generating device
    • 发光装置
    • US09301356B2
    • 2016-03-29
    • US14117391
    • 2012-05-11
    • Christian HattrupHenricus Marius Joseph Maria KahlmanRalph KurtGeorg SauerländerBertrand Johan Edward HonteleHaimin Tao
    • Christian HattrupHenricus Marius Joseph Maria KahlmanRalph KurtGeorg SauerländerBertrand Johan Edward HonteleHaimin Tao
    • H05B37/02H05B33/08
    • H05B33/0824H05B33/0809H05B33/0815H05B33/083Y02B20/347
    • A light generating device (1) is provided with at least a voltage input (21) adapted for receiving a variable voltage, at least three LED circuits (10), coupled with said voltage input (21), wherein each LED circuit (10) comprises a LED unit (14) and controllable current regulator (15) to control the current through said LED circuit (10). The light generating device (1) further comprises a controllable switch matrix (30) comprising a plurality of switches (25, 26, 27), said switch matrix (30) is configured to operate in at least three different switching modes and a controller (50), connected at least with said switch matrix (30), configured to determine said variable operating voltage and to control the switching mode of said switch matrix (30) in dependence of the determined operating voltage. To provide an efficient operation of such device (1) with a variable operating voltage, such as an AC voltage, in a first switching mode, said LED units (10) are connected parallel to each other, in a second switching mode, at least two of said LED units (10) are connected in series and in a third switching mode, said LED units 10 are connected in series with each other.
    • 光发生装置(1)至少设置有用于接收可变电压的电压输入(21),与所述电压输入(21)耦合的至少三个LED电路(10),其中每个LED电路(10) 包括LED单元(14)和可控电流调节器(15),以控制通过所述LED电路(10)的电流。 光产生装置(1)还包括可控开关矩阵(30),其包括多个开关(25,26,27),所述开关矩阵(30)被配置为以至少三种不同的开关模式操作,以及控制器 至少与所述开关矩阵(30)相连接,被配置为确定所述可变工作电压并且根据所确定的工作电压来控制所述开关矩阵(30)的开关模式。 为了在第一开关模式中提供具有诸如AC电压的可变工作电压的这种装置(1)的有效操作,所述LED单元(10)在第二开关模式中至少并联连接 两个所述LED单元(10)串联连接,在第三开关模式下,所述LED单元10彼此串联连接。
    • 65. 发明申请
    • LED LIGHT SOURCE
    • LED光源
    • US20140375223A1
    • 2014-12-25
    • US14124731
    • 2012-05-30
    • Haimin TaoHenricus Marius Joseph Maria KahlmanRalph Kurt
    • Haimin TaoHenricus Marius Joseph Maria KahlmanRalph Kurt
    • H05B33/08
    • H05B33/0845H05B33/0812H05B33/0815H05B33/083H05B33/0842H05B33/0851H05B37/02Y02B20/347Y02B20/348
    • LED light source suitable for use with a phase cut dimmer (III), comprising •input terminals (K1, K2) for connection to an AC supply voltage, •a rectifier (I) coupled to the input terminals, 108 a series arrangement comprising N LEDs (LL1, LL2, LL3) coupled to the rectifier, •control circuitry (EX) for sequentially activating (deactivating) the LEDs as the supply voltage increases (decreases), wherein the control circuitry comprises: •N controllable current regulators, each regulator being coupled between the cathode of a LED and ground and comprising a transistor and one impedance in series, •a global current control circuit (X) coupled to the control electrodes of said transistors and comprising circuitry for adjusting the voltage at said control electrodes in dependency of the phase angle, •a series arrangement of a switch (S) and a capacitor (C1) coupled- to the rectifier and •means (VIII) for rendering said switch conductive in case the AC supply voltage drops below a reference value.
    • 适合与相位调光器(III)一起使用的LED光源,包括:用于连接到AC电源电压的输入端子(K1,K2);•耦合到输入端子的整流器(108),包括N 耦合到整流器的LED(LL1,LL2,LL3),•随着电源电压增加(减少),顺序地激活(停用)LED的控制电路(EX),其中控制电路包括:·N个可控电流调节器, 耦合在LED的阴极和地之间并且包括串联的晶体管和一个阻抗;·耦合到所述晶体管的控制电极的全局电流控制电路(X),并且包括用于依赖地调节所述控制电极处的电压的电路 •相对于整流器耦合的开关(S)和电容器(C1)的串联布置;以及用于在所述交流电源电压低于所述情况下使所述开关导通的装置(VIII) 参考值。
    • 68. 发明申请
    • ILLUMINATION SYSTEM FOR SPOT ILLUMINA
    • 发光照明系统
    • US20120087116A1
    • 2012-04-12
    • US13378087
    • 2010-06-09
    • Teunis Willem TukkerEgbert LenderinkRalph KurtMark Eduard Johan Sipkes
    • Teunis Willem TukkerEgbert LenderinkRalph KurtMark Eduard Johan Sipkes
    • F21V7/00F21V9/00
    • F21V7/09F21K9/62F21V3/04F21V7/041F21Y2105/10F21Y2105/12F21Y2115/10
    • An illumination system (10) for spot illumination comprising a tubular reflector (2) with a reflective inner surface, the tubular reflector (2) having an entrance aperture (7) and an exit aperture (8) being larger than the entrance aperture (7); and a light-source array (1) comprising a plurality of light-sources (13a-c; 30a-d, 31a-d, 32a-d) arranged to emit light into the tubular reflector (2) at the entrance aperture (7) thereof. At least one of the tubular reflector (2) and the light-source array (1) is configured in such a way that each symmetry state of the light-source array (1) is different from any symmetry state of the tubular reflector (2). By avoiding coinciding symmetry states, the occurrence of preferred directions of the emitted light can be reduced, whereby the spatial homogeneity with respect to intensity and, where applicable, color of the emitted light can be improved.
    • 一种用于点照明的照明系统(10),包括具有反射内表面的管状反射器(2),所述管状反射器(2)具有大于入口孔(7)的入口孔(7)和出口孔(8) ); 以及包括多个光源(13a-c; 30a-d,31a-d,32a-d)的光源阵列(1),其布置成在入射孔(7)处将光发射到管状反射器(2) )。 管状反射器(2)和光源阵列(1)中的至少一个被配置成使得光源阵列(1)的每个对称状态不同于管状反射器(2)的任何对称状态 )。 通过避免一致的对称状态,可以减少发射光的优选方向的发生,由此可以改善相对于强度的空间均匀性,并且在适用的情况下可以改善发射光的颜色。