公开(公告)号：US20120086702A1

公开(公告)日：2012-04-12

申请号：US13329687

申请日：2011-12-19

申请人： Carsten Deppe ,  Holger Mönch

发明人： Carsten Deppe ,  Holger Mönch

IPC分类号： G09G5/00

CPC分类号： H04N9/3111 ,  G09G3/002 ,  G09G3/2011 ,  G09G3/2014 ,  G09G2310/0235 ,  H04N9/3155

摘要： The present invention relates to a method of operating a projection system comprising several solid state light sources (2, 3, 4) of different colour 13, 14, 15) and at least one spatial light modulator (1) having an array of switchable elements. Said array is illuminated by at least one of said light sources (2, 3, 4) for several illumination periods and is addressed such that the light is timely and spatially modulated to project images onto a screen. In the present method said light sources (2, 3, 4) are controlled to emit light modulated in amplitude (15) and/or time (18) during said illumination periods of said array. With the present method an increased greyscale resolution of the projection system can be achieved.

摘要翻译： 本发明涉及一种操作投影系统的方法，该投影系统包括多个不同颜色的固态光源（2,3,4）13,14,15）和至少一个空间光调制器（1），该空间光调制器具有可切换元件阵列 。 所述阵列由至少一个所述光源（2,3,4）照亮几个照明周期，并被寻址，使得光被及时和空间调制以将图像投影到屏幕上。 在本方法中，所述光源（2,3,4）被控制为在所述阵列的所述照明周期期间发射以幅度（15）和/或时间（18）调制的光。 利用本方法可以实现投影系统的增加的灰度分辨率。

公开(公告)号：US20110309762A1

公开(公告)日：2011-12-22

申请号：US13203338

申请日：2010-02-23

申请人： Carsten Deppe ,  Reinhold Elferich

发明人： Carsten Deppe ,  Reinhold Elferich

IPC分类号： H05B37/02

CPC分类号： H02M3/337 ,  H02M2001/0058 ,  H05B33/0818 ,  Y02B20/346 ,  Y02B70/1491

摘要： Converters (1) for supplying pulsed power to light sources (8) comprise switching parts (2) and controlling parts (3) for adapting switching parameters of the switching parts (2) for improving a performance. The switching part (2) may comprise first/second switches (41, 42) that are in first/second modes during a first time interval of a cycle and vice versa during a second time intervals of a cycle. A group of cycles results in a pulse of the pulsed power. A switching parameter such as the first time interval of a first cycle may be shortened to reduce overshoot. A switching parameter such as the second time interval of the first cycle may be shortened or lengthened. A switching parameter such as the second time interval of a last cycle may be lengthened or shortened to reduce overshoot. A third switch (93) for switching the light source (8) is activated and de-activated delayedly to improve transient behavior.

摘要翻译： 用于向光源（8）提供脉冲功率的转换器（1）包括用于调整开关部件（2）的开关参数的开关部件（2）和控制部件（3），以提高性能。 切换部分（2）可以包括在循环的第一时间间隔期间处于第一/第二模式的第一/第二开关（41,42），并且反之亦然，在循环的第二时间间隔期间。 一组循环产生脉冲功率的脉冲。 可以缩短诸如第一周期的第一时间间隔的切换参数以减少过冲。 可以缩短或延长诸如第一周期的第二时间间隔的切换参数。 诸如最后一个周期的第二时间间隔的切换参数可以被延长或缩短以减少过冲。 用于切换光源（8）的第三开关（93）被激活并被延迟地去激活以改善瞬态行为。

公开(公告)号：US08022644B2

公开(公告)日：2011-09-20

申请号：US11994426

申请日：2006-07-03

申请人： Carsten Deppe ,  Peter Luerkens ,  Raul Duran

发明人： Carsten Deppe ,  Peter Luerkens ,  Raul Duran

IPC分类号： H05B41/00

CPC分类号： H05B41/2881 ,  H05B41/042 ,  Y02B20/204

摘要： Ignition of a gas discharge lamp 10, which has a gas containing main space and two inner electrodes, of a lighting unit 4 of a lighting system is achieved by the use of a high frequency resonance circuit. The resonance circuit is connected to the inner electrodes and to a supply device 2, which supplies an alternating supply voltage. An outer electrode 22 is arranged near one the inner electrodes and to a node of the resonance circuit. Upon supplying the supply voltage a high voltage alternating burst will be generated at the outer electrode. This will result into a discharge of the gas in the main space. In turn, this will induce a discharge of the remaining gas. Then the frequency of the supply voltage will increase and a small reactive current only will remain to flow through the resonance circuit.

摘要翻译： 通过使用高频谐振电路来实现照明系统的照明单元4对具有主空间和两个内部电极的气体的气体放电灯10的点火。 谐振电路连接到内部电极和提供交流电源电压的供电装置2。 外部电极22配置在内部电极和谐振电路的节点附近。 在提供电源电压时，将在外部电极处产生高电压交替脉冲串。 这将导致主空间中的气体排放。 反过来，这将导致剩余气体的排放。 然后，电源电压的频率将增加，并且只有小的无功电流才会流过谐振电路。

公开(公告)号：US07909473B2

公开(公告)日：2011-03-22

申请号：US12066500

申请日：2006-09-01

申请人： Carsten Deppe

发明人： Carsten Deppe

IPC分类号： H05B37/00

CPC分类号： H05B41/3928 ,  Y02B20/202

摘要： There is described a method for operating a high-intensity discharge lamp (2), in which the high-intensity discharge lamp (2) is acted upon by an AC current (I) which commutates between positive pulses (Ip) and negative pulses (In) with a predefined current amplitude (IA), wherein a pulse width ratio between the pulse width of a positive pulse (Ip) and the pulse width of an adjacent negative pulse (In) is modulated in such a way that the mean current value (I) of two successive positive and negative pulses (Ip, In) fluctuates periodically between positive and negative values. In addition, the value of the current amplitude (IA) is modulated in accordance with a predefined modulation function (M). A description is also given of a corresponding lamp driver (10) for a high-intensity discharge lamp (2) and of a projection system (1) comprising such a lamp driver (10).

摘要翻译： 描述了一种用于操作高强度放电灯（2）的方法，其中高强度放电灯（2）由在正脉冲（Ip）和负脉冲（Ip）之间换向的交流电流（I） In）具有预定电流幅度（IA），其中正脉冲（Ip）的脉冲宽度与相邻负脉冲（In）的脉冲宽度之间的脉冲宽度比被调制成使得平均电流值 两个连续的正和负脉冲（Ip，In）的（I）周期性地在正值和负值之间波动。 此外，根据预定义的调制函数（M）调制当前幅度（IA）的值。 还给出了用于高强度放电灯（2）的相应的灯驱动器（10）和包括这种灯驱动器（10）的投影系统（1）的描述。

公开(公告)号：US20100244718A1

公开(公告)日：2010-09-30

申请号：US12667394

申请日：2008-07-08

申请人： Jens Pollmann-Retsch ,  John J.P.J. Van Den Bergh ,  Uwe Mackens ,  Pavel Pekarski ,  Mark Carpaij ,  Carsten Deppe

发明人： Jens Pollmann-Retsch ,  John J.P.J. Van Den Bergh ,  Uwe Mackens ,  Pavel Pekarski ,  Mark Carpaij ,  Carsten Deppe

IPC分类号： H05B41/36

CPC分类号： H05B41/2928 ,  Y02B20/208

摘要： In this method an arc-length control value, indicating the current length of a discharge arc of the gas-discharge lamp (1), is monitored and the lamp (1) is driven in a first operation mode (OMP) with a first current wave-shape when the arc-length control value indicates that the arc-length is higher than a switching threshold, which first current wave-shape is selected to result in a tip (31) growing on an electrode (30) of the lamp (1), and the lamp (1) is driven in a second operation mode (OMn) with a second current wave-shape when the arc-length control value indicates that the arc-length is lower than a switching threshold, which second current wave-shape is selected such that the tip (31) on the electrode (30) is at least partly melted back. In this method an operating frequency of the lamp is switched from a first frequency value (fi) to a second frequency value (f2), which second frequency • (f 2) value is higher than the first frequency value (fi)′, if a first time criterion pertaining to a duration of driving of the lamp (1) in the second operation mode (OMn) is fulfilled and the operating frequency is switched from the second frequency value (f2) to the first frequency value (fi), if a second time criterion pertaining to a duration of driving of the lamp (1) in the first operation mode (OMP) is fulfilled.

摘要翻译： 在该方法中，监视指示气体放电灯（1）的放电弧的当前长度的电弧长度控制值，并且以第一电流（OMP）驱动灯（1） 当电弧长度控制值指示电弧长度高于切换阈值时，选择第一电流波形以导致尖端（31）在灯的电极（30）上生长（波形） 1），并且当电弧长度控制值表示电弧长度低于开关阈值时，灯（1）以第二电流波形在第二操作模式（OMn）中被驱动，该第二电流波 形状，使得电极（30）上的尖端（31）至少部分地被熔化。 在这种方法中，灯的工作频率从第一频率值（fi）切换到第二频率值（f2），第二频率（f 2）值高于第一频率值（fi） 满足关于在第二操作模式（OMn）中的灯（1）的驱动持续时间的第一时间标准，并且将操作频率从第二频率值（f2）切换到第一频率值（fi），如果 满足与第一操作模式（OMP）中的灯（1）的驱动持续时间有关的第二时间标准。

公开(公告)号：US20100188007A1

公开(公告)日：2010-07-29

申请号：US12665126

申请日：2008-06-23

申请人： Carsten Deppe ,  Ulrich Boeke ,  ChenYang Liu ,  Peter Luerkens

发明人： Carsten Deppe ,  Ulrich Boeke ,  ChenYang Liu ,  Peter Luerkens

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0809 ,  H05B33/0818

摘要： Supply circuits for supplying voltage and current signals to light sources (6) comprise switches (22, 32, 42, 52) and controllers (21, 31, 41, 51) to control the switches (22, 32, 42, 52) for reducing values of frequency components of harmonic content of power spectra of the light sources (6). By switching one of the voltage and current signals or by switching signals that result in one of the voltage and current signals, the other one of the voltage and current signals can be adjusted. The power spectrum of the light source (6) may be a function of the voltage and current signals. By adjusting one of them, the power spectrum can be adjusted such that values of frequency components of the harmonic content of the power spectrum are reduced. As a result, visible flicker is reduced in the light originating from the light source (6) without the use of energy storage capacitors for reducing this visible flicker.

摘要翻译： 用于向光源（6）提供电压和电流信号的电源电路包括用于控制开关（22,32,42,52）的开关（22,32,42,52）和控制器（21,31,41,51），用于控制 降低光源功率谱谐波含量的频率分量值（6）。 通过切换电压和电流信号之一或切换导致电压和电流信号之一的信号，可以调整电压和电流信号中的另一个。 光源（6）的功率谱可以是电压和电流信号的函数。 通过调整其中的一个，可以调整功率谱，使得功率谱的谐波含量的频率分量的值减小。 结果，在不使用储能电容器来减少这种可见闪烁的情况下，源自光源（6）的光的可见闪烁减小。

公开(公告)号：US20100171771A1

公开(公告)日：2010-07-08

申请号：US12602206

申请日：2008-05-30

申请人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

发明人： Rob Otte ,  Carsten Deppe ,  Oscar Jan Deurloo

IPC分类号： G09G5/10 ,  H05B37/02

CPC分类号： G09G3/3413 ,  G09G2310/0235

摘要： A light source sequentially emits lights generated by at least three light emitting elements each emitting a different primary color to generate an image. Each light emitting element has a duty cycle in a lighting period, which may be an image frame period. A sequence scheme is provided for alternatingly driving different ones of the light emitting elements. The light emitting elements are driven in accordance with the sequence scheme at least two times in the lighting period, while maintaining the duty cycle for each light emitting element. In the sequence scheme, at least one light emitting element having the highest temperature sensitivity of all light emitting elements is driven more times than another one.

摘要翻译： 光源顺序地发射由至少三个发光元件产生的光，每个发光元件发射不同的原色以产生图像。 每个发光元件在照明周期中具有占空比，其可以是图像帧周期。 提供了用于交替地驱动不同的发光元件的顺序方案。 在保持发光元件的占空比的同时，在点亮期间，根据顺序方案驱动发光元件至少两次。 在顺序方案中，具有所有发光元件的最高温度敏感度的至少一个发光元件被驱动比另一个更多次。

公开(公告)号：US07731370B2

公开(公告)日：2010-06-08

申请号：US11719771

申请日：2005-11-21

申请人： Carsten Deppe ,  Tom Munters

发明人： Carsten Deppe ,  Tom Munters

IPC分类号： G03B21/20 ,  G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H04N9/3111 ,  H04N9/315 ,  H05B41/2883 ,  H05B41/2928 ,  Y02B20/208

摘要： A projection system and a method for operating a discharge lamp are described. The protection system comprises a discharge lamp 12 and driving electronics 14. The color wheel 18 serves as color filter for filtering light 16 emitted from lamp 12 to generate a light sequence 20 with different colors in sequential color time periods 22, 22a. In between color time periods 22, 22a, spoke time periods 24, 24a are arranged. The driving electronics provide a lamp current I with superimposed first current pulses, which are generated in at least one of the color time periods 22, 22a. In order to allow greater flexibility and be able to achieve stable arc operation and constant color point over lamp lifetime, the driving electronics 14 further provide second current pulses superimposed on the lamp current. The second current pulses are generated during at least one of the spoke time periods 24, 24a.

摘要翻译： 描述投影系统和操作放电灯的方法。 保护系统包括放电灯12和驱动电路14.色轮18用作过滤从灯12发出的光16的滤色器，以在顺序彩色时间段22,22a生成具有不同颜色的光序列20。 在颜色时间段22,22a之间布置辐条时间段24,24a。 驱动电路为灯电流I提供叠加的第一电流脉冲，其在颜色时间段22,22a中的至少一个中产生。 为了允许更大的灵活性并且能够实现稳定的电弧操作和在灯寿命期间恒定的色点，驱动电子装置14还提供叠加在灯电流上的第二电流脉冲。 第二电流脉冲在至少一个辐条时间段24,24a期间产生。

公开(公告)号：US20090261756A1

公开(公告)日：2009-10-22

申请号：US12300477

申请日：2007-04-25

申请人： Tobias Georg Tolle ,  Ludo Valere Maurice Schreel ,  Carsten Deppe

发明人： Tobias Georg Tolle ,  Ludo Valere Maurice Schreel ,  Carsten Deppe

IPC分类号： H05B41/36

CPC分类号： H05B41/2928 ,  H04N9/3144 ,  H04N9/3155 ,  H05B41/384 ,  Y02B20/206

摘要： The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) is disposed in an arc tube (3), which method comprises reducing, upon receipt of a shut-down request (SR), the lamp power (P) towards a reduced power level (PR) required to sustain a long-term arc discharge between the electrodes (2), and driving the lamp (1) towards the reduced power level (PR) for a reduced power duration before completely shutting down the lamp power (P), whereby, prior to reducing the lamp power (P) towards the reduced power level (PR), the lamp power (P) is reduced to an undershoot power level (Pu), which undershoot power level (Pu) is lower than the reduced power level (PR) required to sustain a long-term arc discharge between the electrodes (2), and the lamp is driven at this undershoot power level (Pu) for an undershoot power duration (tu) before increasing the lamp power (P) again to approach the reduced power level (PR). Moreover the invention describes an appropriate driving unit (4) for driving a high pressure discharge lamp (1) and an image rendering system (40), particularly a projector system, comprising such a driving unit (4).

摘要翻译： 本发明描述了一种关闭其中一对电极（2）设置在电弧管（3）中的高压放电灯（1）的方法，该方法包括在接收到关闭请求（SR ），朝向维持电极（2）之间的长期电弧放电所需的降低功率电平（PR）的灯功率（P）），并且朝着降低的功率电平（PR）驱动灯（1）以减少 在完全关闭灯泡功率（P）之前的功率持续时间，由此，在将灯功率（P）降低到降低功率水平（PR）之前，灯功率（P）减小到下冲功率水平（Pu） 其功率水平（Pu）低于维持电极（2）之间的长期电弧放电所需的降低的功率电平（PR），并且灯以该下冲功率电平（Pu）被驱动用于下冲功率 在再次提高灯功率（P）以接近降低功率电平（PR）之前的持续时间（tu）。 此外，本发明描述了用于驱动高压放电灯（1）和图像渲染系统（40）的合适的驱动单元（4），特别是包括这种驱动单元（4）的投影仪系统。

公开(公告)号：US20090051300A1

公开(公告)日：2009-02-26

申请号：US12279855

申请日：2007-02-09

申请人： Carsten Deppe ,  Hendrik Anton Van Esveld ,  Tobias Georg Tolle

发明人： Carsten Deppe ,  Hendrik Anton Van Esveld ,  Tobias Georg Tolle

IPC分类号： H05B41/36

CPC分类号： H05B41/2882 ,  H05B41/2926 ,  H05B41/384 ,  H05B41/3928 ,  Y02B20/202 ,  Y02B20/206

摘要： This invention describes a method for driving a gas discharge lamp (1), whereby an alternating voltage (U) is applied to the gas discharge lamp (1), the alternating voltage (U) having a first polarity during a first time interval (tf1, ts1) and a second polarity opposite to the first polarity during a second time interval (tf2, ts2). In this method, the first time interval (tf1) and the second time interval (tf2) are repeated alternately during a first operation mode. During a second operation mode, the electrical power (P) being provided to the gas discharge lamp (1) is smaller compared to the first operation mode, and the first time interval (ts1) and the second time interval (ts2) are repeated alternately, whereby in this second operation mode the duration of the first time interval (ts1) is at least a multiple of the duration of the second time interval (ts2). Furthermore, the invention describes an appropriate driving unit (4) for driving a gas discharge lamp (1), and an image rendering system, particularly a projector system, comprising a gas discharge lamp (1) and such a driving unit (4).

摘要翻译： 本发明描述了一种用于驱动气体放电灯（1）的方法，由此在气体放电灯（1）中施加交流电压（U），在第一时间间隔（tf1）中具有第一极性的交流电压（U） ，ts1）和在第二时间间隔（tf2，ts2）期间与第一极性相反的第二极性。 在该方法中，在第一操作模式期间交替重复第一时间间隔（tf1）和第二时间间隔（tf2）。 在第二操作模式期间，与第一操作模式相比，提供给气体放电灯（1）的电功率（P）较小，并且交替地重复第一时间间隔（ts1）和第二时间间隔（ts2） ，由此在该第二操作模式中，第一时间间隔（ts1）的持续时间是第二时间间隔（ts2）的持续时间的至少一倍。 此外，本发明描述了用于驱动气体放电灯（1）的合适的驱动单元（4），以及包括气体放电灯（1）和这种驱动单元（4）的图像渲染系统，特别是投影仪系统。