LED light source
    62.
    发明授权
    LED light source 有权
    LED光源

    公开(公告)号:US09345080B2

    公开(公告)日:2016-05-17

    申请号:US14239166

    申请日:2012-08-21

    IPC分类号: H05B33/08

    CPC分类号: H05B33/0815 H05B33/083

    摘要: A LED light source comprises a first rectifier (DB1) having input terminals coupled to an AC voltage source and output terminals connected by a first series arrangement comprising N LED loads and further comprises circuitry (I1, I2, I3, CC) for making the LED loads one by one carry a current when the momentary value of the AC voltage increases and one by one stop carrying a current when the momentary value of the AC voltage decreases. The LED light source also comprises a second rectifier (DB2) having input terminals coupled to the AC voltage source via a reactive element and output terminals connected by a second series arrangement comprising M LED loads and further comprises circuitry (I4) for making the LED loads one by one carry a current when the momentary value of the AC voltage present at the input terminals of the second rectifier increases and one by one stop carrying a current when the momentary value of the AC voltage decreases.

    摘要翻译: LED光源包括具有耦合到AC电压源的输入端和通过包括N个LED负载的第一串联装置连接的输出端的第一整流器(DB1),并且还包括用于制造LED的电路(I1,I2,I3,CC) 当交流电压的瞬时值增加时,逐个负载一个负载一个电流,并且当交流电压的瞬时值减小时一个接一个地停止传输电流。 LED光源还包括具有经由电抗元件耦合到AC电压源的输入端子的第二整流器(DB2),以及由包括M LED负载的第二串联装置连接的输出端子,还包括用于使LED负载 当交流电压的瞬时值减小时,当存在于第二整流器的输入端的交流电压的瞬时值增加并且一个接一个地停止传输电流时,一个接一个地携带电流。

    Light generating device
    63.
    发明授权
    Light generating device 有权
    发光装置

    公开(公告)号:US09301356B2

    公开(公告)日:2016-03-29

    申请号:US14117391

    申请日:2012-05-11

    IPC分类号: H05B37/02 H05B33/08

    摘要: 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.

    摘要翻译: 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。

    Lighting device
    64.
    发明授权
    Lighting device 有权
    照明设备

    公开(公告)号:US09229145B2

    公开(公告)日:2016-01-05

    申请号:US13505105

    申请日:2010-10-28

    摘要: A lighting device comprising a plurality of light emitting elements (1), and a beam shaping optics (7) having an entrance aperture (6). Each light emitting element is optically connected to a set of optical fibers (5) each having a first end optically connected to the light emitting element and a second end optically connected to the entrance aperture (6), so as to guide collimated light from the light emitting element to the beam shaping optics (7). The light emitting elements are distributed over an area larger than the entrance aperture (6).

    摘要翻译: 一种照明装置,包括多个发光元件(1)和具有入射孔(6)的光束整形光学元件(7)。 每个发光元件光学连接到一组光纤(5),每组光纤具有光学连接到发光元件的第一端和与入口孔(6)光学连接的第二端,以便引导来自 发光元件到光束整形光学器件(7)。 发光元件分布在比入口孔(6)大的区域上。

    LED LIGHT SOURCE
    67.
    发明申请
    LED LIGHT SOURCE 审中-公开
    LED光源

    公开(公告)号:US20140375223A1

    公开(公告)日:2014-12-25

    申请号:US14124731

    申请日:2012-05-30

    IPC分类号: H05B33/08

    摘要: 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.

    摘要翻译: 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。

    LED LIGHT SOURCE
    68.
    发明申请
    LED LIGHT SOURCE 有权
    LED光源

    公开(公告)号:US20140015428A1

    公开(公告)日:2014-01-16

    申请号:US14007492

    申请日:2012-03-28

    IPC分类号: H05B33/08

    CPC分类号: H05B33/083 H05B33/0809

    摘要: LED light source comprising a string of LED loads (LED1-LED4) supplied by a rectified mains voltage. The number of LED loads carrying current is increased as the momentary amplitude of the rectified mains voltage increases, and is decreased as the momentary amplitude of the rectified mains voltage decreases. The order in which the LED loads start carrying a current and the order in which the LED loads stop carrying a current is reversed for each half period of the mains.

    摘要翻译: LED光源包括由整流电源电压提供的一串LED负载(LED1-LED4)。 负载电流的LED负载的数量随着整流电源电压的瞬时幅度的增加而增加,并且随着整流电源电压的瞬时幅度的减小而减小。 LED负载开始承载电流的顺序以及LED负载停止承载电流的顺序在主电源的每个半周期都相反。

    ILLUMINATION SYSTEM FOR SPOT ILLUMINA
    70.
    发明申请
    ILLUMINATION SYSTEM FOR SPOT ILLUMINA 审中-公开
    发光照明系统

    公开(公告)号:US20120087116A1

    公开(公告)日:2012-04-12

    申请号:US13378087

    申请日:2010-06-09

    IPC分类号: F21V7/00 F21V9/00

    摘要: 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.

    摘要翻译: 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。